C-ATSCAN11

Transcription

C-ATSCAN11

ANCHOR
TIEDOWN SYSTEM
For Multi-Storey
Overturning Restraint
CANADIAN
LIMITED STATES
DESIGN
C-ATSCAN11
(800) 999-5099
www.strongtie.com
LATERAL
The 2009 NEESWood Capstone test was the largest full-scale earthquake test in history.
It featured a six-storey, 40' x 60' condominium tower of wood-frame construction that
was outfitted with Simpson Strong‑Tie ® lateral systems products and subjected to ground
motions equivalent to a 7.5 magnitude earthquake. Capstone validated previous tests supporting the British Columbia building code revision that increased the maximum height of
mid-rise, wooden residential construction from four to six storeys. British Columbia
supplied the more than 100 tons of lumber used to construct the building.
Presenting our Lateral Systems
Little did we know
At Simpson Strong‑Tie, we believe that
structural system technology that’s
when we introduced our first holdown
strength really does come in numbers.
to come has us just as excited as we
in 1966 that our product innovations
By offering the largest selection of lab
were when we developed that first
would lead us to solutions that can
and field-tested lateral-force resisting
holdown. With each new product and
help hold together six-storey buildings
systems along with dedicated engineers
design innovation, we’re working with
during an earthquake or allow builders
and field support reps to back them up,
the industry to increase the structural
to install larger window and door
you can count on the strength of our
safety of homes and buildings around
openings in homes. Our offering
products and our people to perform.
the country. And in light of all the
of lateral-force resisting systems,
hurricanes, windstorms and earthquakes
including Wood and Steel Strong-Wall®
Whether you’re designing or building
the world has experienced during the
shearwalls, Anchor Tiedown System
a single-family home, a six-storey
last 40 years, that’s a pretty good feeling.
and new Strong Frame™ moment
mixed-use building or a retail store,
frames, gives designers and engineers
we know we have a solution to fit your
added design flexibility in wood-frame
project and meet the most stringent
construction and the confidence that
code requirements. And we’re not
To learn more, visit:
almost anything is possible.
done yet. The research, testing and
www.strongtie.com/lateralsystems
Strong-Wall® shearwalls
Strong Frame™ moment frames
Anchor Tiedown Systems
Anchor Tiedown System
Introduction
For more than 50 years, Simpson Strong‑Tie has focused on creating
structural products that help people build safer and stronger homes
and buildings. A leader in structural systems research and technology,
Simpson Strong‑Tie is one of the largest suppliers of structural building
products in the world. The Simpson Strong‑Tie commitment to product
development, engineering, testing and training is evident in the consistent
quality and delivery of its products and services. Simpson Strong‑Tie®
product lines include:
•
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•
•
•
•
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Structural connectors for wood and cold-formed-steel construction
Strong-Wall® prefabricated shearwalls
Strong Frame™ ordinary moment frames
ATS Anchor Tiedown systems for multi-storey buildings
Quik Drive ® auto-feed screwdriving systems
Stainless-steel and corrosion-resistant fasteners
Simpson Strong‑Tie Anchor Systems® anchors and
fasteners for concrete and masonry
For more information, visit the company’s Web site at www.strongtie.com.
The Simpson Strong‑Tie Company Inc. “No Equal” pledge includes:
• Quality products value-engineered for the lowest installed
cost at the highest rated performance levels
• Most thoroughly tested and evaluated products in the industry
• Strategically-located manufacturing and warehouse facilities
• Largest number of patented connectors in the industry
• European locations with an international sales team
• In-house R&D, and tool and die professionals
• In-house product testing and quality control engineers
• Member of WWTA, OWTFA, QWTFA, AWTFA, WRLA, LBMAO,
ABSDA, TPIC and PEO
We help people build safer structures economically. We do
this by designing, engineering and manufacturing “No Equal”
structural connectors and other related products that meet or
exceed our customers’ needs and expectations. Everyone is
responsible for product quality and is committed to ensuring
the effectiveness of the Quality Management System.
Table of contents
General Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–6
Optimal ATS for Canada – ATS Conversion Chart . . . . . . . . . . . . . . . . . . . . 7
Skipped Floor Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Sources of Deflection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Take-Up Devices (CTUD and TUD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Strong-Rod™ Threaded Rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Isolator Nut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Coupler Nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Anchor Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13–14
Tom Fitzmyers
Chief Executive Officer
Terry Kingsfather
President
Anchor Bolt Locator (ABL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Bearing Plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Weldable Cages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
ATS Design Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17–18
WE ARE ISO 9001-2008 REGISTERED
Simpson Strong‑Tie is an ISO 9001-2008
registered company. ISO 9001-2008 is an
internationally-recognized quality assurance
system which lets our domestic and
international customers know that they can
count on the consistent quality of Simpson
Strong-Tie ® products and services.
Pre-Engineered, Optimized Runs
One-Storey Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19–20
Two-Storey Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21–22
Three-Storey Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23–25
Four-Storey Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26–29
Five-Storey Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30–33
Six-Storey Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34–37
Alternate Top-Storey Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Installation Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Shearwall Edge Nailing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Compression Members General Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
4
Technical Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Back Cover
C-ATSCAN11 © 2011 simpson strong-tie COMPANY INC.
Simpson Strong‑Tie QUALITY POLICY
Important information AND general notes
WARNING
Simpson Strong‑Tie Company Inc. structural connectors, anchors, and other
products are designed and tested to provide specified design loads. To obtain
optimal performance from Simpson Strong‑Tie Company Inc. products and
achieve maximum permitted design values, the products must be properly
installed and used in accordance with the installation instructions and design
limits provided by Simpson Strong‑Tie Company Inc. To ensure proper
installation and use, designers and installers must carefully read the following
General Notes, General Instructions For The Installer and General Instructions
For The Designer, as well as consult the applicable catalogue pages for
specific product installation instructions and notes.
Proper product installation requires careful attention to all notes and
instructions, including these basic rules:
1. Be familiar with the application and correct use of the connector.
2. Follow all installation instructions provided in the applicable
catalogue, website, Installer’s Pocket Guide or any other
Simpson Strong‑Tie publications.
3. Install all required components per installation instructions provided
by Simpson Strong‑Tie Company Inc.: a) use proper fastener type;
b) use proper fastener quantity; c) ensure screws are completely driven.
In addition to following the basic rules provided above as well as all notes,
warnings and instructions provided in the catalogue, installers, designers,
engineers and consumers should consult the Simpson Strong‑Tie Company
Inc. website at www.strongtie.com to obtain additional design and
installation information, including:
• Information on workshops Simpson Strong‑Tie conducts at
various training centers throughout North America;
• Product specific installation videos;
• Specialty catalogues;
• Technical fliers and bulletins;
• Master format specifications;
• Material safety data sheets;
• Corrosion information;
• Connector selection guides for engineered wood products
(by manufacturer);
• Simpson Strong‑Tie® Connector Selector software for ASD;
• Simpson Strong‑Tie Autocad menu; and
• Answers to frequently asked questions and technical topics.
Failure to follow fully all of the notes and instructions provided by
Simpson Strong‑Tie Company Inc. may result in improper installation
of products. Improperly installed products may not perform to the
specifications set forth in this catalogue and may reduce a structure’s
ability to resist the movement, stress, and loading that occurs from
gravity loads as well as impact events such as earthquakes and high
velocity winds.
Simpson Strong‑Tie Company Inc. does not guarantee the performance
or safety of products that are modified, improperly installed or not used
in accordance with the design and load limits set forth in this catalogue.
GENERAL NOTES
These general notes are provided to ensure proper installation of Simpson Strong‑Tie Company Inc. products and must be followed fully.
a. Simpson Strong‑Tie Company Inc. reserves the right to change
specifications, designs, and models without notice or liability for such
changes.
b. Steel used for each Simpson Strong‑Tie® product is individually selected
based on the product’s steel specifications, including strength, thickness,
formability, finish, and weldability. Contact Simpson Strong‑Tie for steel
information on specific products.
c. Unless otherwise noted, dimensions are in inches, loads are in pounds.
d. Do Not Overload. Do not exceed catalogue resistances, which would
jeopardize the connection.
e. Wood shrinks and expands as it loses and gains moisture, particularly
perpendicular to its grain. Take wood shrinkage into account when
designing and installing connections. The effects of wood shrinkage
are increased in multiple lumber connections, such as floor-to-floor
installations. This may result in the vertical rod nuts becoming loose,
requiring tightening.
f. Built-up lumber (multiple members) must be fastened together to act
as one unit to resist the applied load. This must be determined by the
Designer.
GENERAL INSTRUCTIONS FOR THE INSTALLER
These general instructions for the installer are provided to ensure proper selection and installation of Simpson Strong‑Tie Company Inc. products and must
be followed carefully. These general instructions are in addition to the specific installation instructions and notes provided for each particular product, all of
which should be consulted prior to and during installation of Simpson Strong‑Tie Company Inc. products.
a. All specified connectors must be installed according to the instructions
in this catalogue. Incorrect connection quantity, size, placement, or type
may cause the connection to fail.
b. Use the materials specified in the installation instructions. Substitution
of or failure to use specified materials may cause the connection to fail.
c. Do not add fastener holes or otherwise modify Simpson Strong‑Tie
Company Inc. products. The performance of modified products may
be substantially weakened. Simpson Strong‑Tie will not warrant or
guarantee the performance of such modified products.
d.Install products in the position specified in the catalogue.
e. Do not alter installation procedures from those set forth in this catalogue.
f. Some hardened fasteners may have premature failure if exposed to
moisture. These fasteners are recommended to be used in dry interior
applications.
g. Use proper safety equipment.
h. Welding galvanized steel may produce harmful fumes; follow proper
welding procedures and safety precautions. Welding should be in
accordance with CSA W59 and the Canadian Welding Bureau
standards. Unless otherwise noted Simpson Strong‑Tie® connectors
cannot be welded.
i. The installer may cut Strong-Rod ™ threaded rod or other threaded rod to
length as required.
j. Shearwall sheathing shall not have vertical joints at any of the specified
compression members except at the shearwall perimeter.
k. See page 39 for shearwall edge nailing details.
l. When installing hex nuts or Isolator Nuts on the Strong-Rod™ threaded rod,
make the nut snug on the bearing plate and tighten an additional 1⁄2 turn.
5
Important information AND general notes
GENERAL INSTRUCTIONS FOR THE DESIGNER
These general instructions for the designer are provided to ensure proper selection and installation of Simpson Strong‑Tie Company Inc. products and
must be followed carefully. These general instructions are in addition to the specific design and installation instructions and notes provided for each
particular product, all of which should be consulted prior to and during the design process.
a. The term “Designer” used throughout this catalogue is intended to mean
a qualified licensed professional engineer, or a qualified licensed architect.
b. All connected members and related elements shall be designed by
the Designer.
c. All installations should be designed only in accordance with the factored
resistances set forth in this catalogue.
d. The Designer is responsible for verifying that all design loads do not
exceed the factored resistances listed for each component in the restraint
system. This includes, but is not limited to, the cumulative tension,
incremental bearing, concrete anchorage, and wood framing members.
The design of these elements must be performed to the satisfaction of
the building official.
e. Anchor Tiedown System (ATS) capacities listed in this catalogue have
been calculated in accordance with CSA S16-09, CSA O86-09 and
CSA A23.3-04.
f. The Designer is responsible for verifying that the building drift is within
acceptable limitations and code limitations.
g. Studs, posts and blocking details shall be specified by the Designer and
are not shipped with the Anchor Tiedown System. See notes and tables on
pages 41 for compression member capacities, design assumptions and
general notes.
h.In some cases tension anchorage solutions may be designed and provided
by Simpson Strong‑Tie for ATS based on the rod tensile capacity at the
first floor. Alternate anchor bolt solutions may be provided by the Designer.
Foundation and reinforcement design shall be specified by the Designer.
If anchorage is designed by others, contact Simpson Strong‑Tie to
coordinate connecting components for the 1st level. Concrete anchorage
components also available.
i. Simpson Strong‑Tie strongly recommends the following addition
to construction drawings and specifications: “Simpson Strong‑Tie®
connectors are specifically required to meet the structural calculations
of plan. Before substituting another brand, confirm load capacity based
on reliable published testing data or calculations. The Designer should
evaluate and give written approval for substitution prior to installation.”
j. ATS is designed to be installed floor by floor as the structure is built.
Installation in this manner, with shearwalls, will provide a lateral force
resisting system during construction.
k. See pages 17–18 for a design example and guide for the Designer.
l. Do not weld products listed in this catalogue unless this publication
specifically identifies a product as acceptable for welding, or unless
specific approval for welding is provided in writing by Simpson Strong‑Tie.
Some steels have poor weldability and a tendency to crack when
welded. Cracked steel will not carry load and must be replaced.
m.Local and/or regional building codes may require meeting special
conditions. Building codes often require special inspection of anchors
installed in concrete and masonry. For compliance with these requirements,
it is necessary to contact the local and/or regional building authority.
Except where mandated by code, Simpson Strong‑Tie products do not
require special inspection.
Limited Warranty
Simpson Strong‑Tie® connectors are designed to enable structures to resist
the movement, stress, and loading that results from impact events such
as earthquakes and high velocity winds. Other Simpson Strong‑Tie products
are designed to the load capacities and uses listed in this catalogue.
Properly-installed Simpson Strong‑Tie products will perform in accordance
with the specifications set forth in the applicable Simpson Strong‑Tie
catalogue. Additional performance limitations for specific products may
be listed on the applicable catalogue pages.
Due to the particular characteristics of potential impact events, the specific
design and location of the structure, the building materials used, the quality
of construction, and the condition of the soils involved, damage may
nonetheless result to a structure and its contents even if the loads resulting
from the impact event do not exceed Simpson Strong‑Tie catalogue
specifications and Simpson Strong‑Tie connectors are properly installed in
accordance with applicable building codes.
All warranty obligations of Simpson Strong‑Tie Company Inc. shall be
limited, at the discretion of Simpson Strong‑Tie Company Inc., to repair
or replacement of the defective part. These remedies shall constitute
Simpson Strong‑Tie Company Inc.’s sole obligation and sole remedy
of purchaser under this warranty. In no event will Simpson Strong‑Tie
Company Inc. be responsible for incidental, consequential, or special loss
or damage, however caused.
This warranty is expressly in lieu of all other warranties, expressed
or implied, including warranties of merchantability or fitness for a
particular purpose, all such other warranties being hereby expressly
excluded. This warranty may change periodically – consult our website
www.strongtie.com for current information.
TERMS & CONDITIONS OF SALE
PRODUCT USE
Products in this catalogue are designed and manufactured for the specific
purposes shown, and should not be used with other connectors not
approved by a qualified Designer. Modifications to products or changes in
installations should only be made by a qualified Designer. The performance
of such modified products or altered installations is the sole responsibility
of the Designer.
INDEMNITY
Customers or Designers modifying products or installations, or designing noncatalogue products for fabrication by Simpson Strong‑Tie Company Inc. shall,
regardless of specific instructions to the user, indemnify, defend, and hold
harmless Simpson Strong‑Tie Company Inc. for any and all claimed loss or
damage occasioned in whole or in part by non-catalogue or modified products.
6
NON-Catalogue AND MODIFIED PRODUCTS
Consult Simpson Strong‑Tie Company Inc. for applications for which there
is no catalogue product, or for connectors for use in hostile environments,
with excessive wood shrinkage, or with abnormal loading or erection
requirements.
Non-catalogue products must be designed by the customer and will
be fabricated by Simpson Strong‑Tie in accordance with customer
specifications.
Simpson Strong‑Tie cannot and does not make any representations
regarding the suitability of use or load-carrying capacities of non-catalogue
products. Simpson Strong‑Tie provides no warranty, express or implied, on
non-catalogue products. F.O.B. Shipping Point unless otherwise specified.
Simpson Strong‑Tie Company Inc. warrants catalogue products to be free
from defects in material or manufacturing. Simpson Strong‑Tie Company
Inc. products are further warranted for adequacy of design when used in
accordance with design limits in this catalogue and when properly specified,
installed, and maintained. This warranty does not apply to uses not in
compliance with specific applications and installations set forth in this
catalogue, or to non-catalogue or modified products, or to deterioration
due to environmental conditions.
Optimal ATS for Canada
Introducing the Optimal
Anchor Tiedown System For British Columbia*
On April 6, 2009, the British Columbia Building Code was revised to
permit the construction of six-storey residential buildings from wood.
This code change, and the subsequent construction of every six storey
residential structure built with wood in Canada, is in part a result of the
full scale NEESWood Capstone tests performed on the world’s largest
shake table in Miki, Japan.
The NEESWood Capstone testing subjected a full scale, six storey, wood
framed residential building to ground motions roughly equivalent to a 7.5
magnitude earthquake. The structure was built using Simpson Strong‑Tie
Anchor Tiedown System (ATS) as the primary overturning restraint. It
withstood the simulation and was structurally intact after the test.
The NEESWood Capstone test program was led by Colorado State
University in cooperation with Simpson Strong-Tie. Major funding was
provided by the National Science Foundation (U.S.), the government of
British Columbia, the government of Japan, the U.S. Forest Products
Laboratory and FP Innovations. This testing program validated the belief
that six-storey wood buildings can, indeed, be built economically to
withstand large seismic events.
As the recognized leader in holdown technology and cutting-edge
engineering concepts, Simpson Strong‑Tie® introduces the Optimal
ATS, a combination of ATS components selected to most economically
satisfy the demand loads and performance requirements of the structure
designed under the more stringent design requirements, including
seismic and shrinkage criteria, of the revised building code. Similar to
the system used in the Capstone test, Optimal ATS is designed to meet
the performance needs of mid-rise structures. Moreover, our unparalleled
engineering and field support – from design through product installation
– continues to foster the peace of mind Designers have come to expect
from Simpson Strong‑Tie.
*Five- and six-storey systems are applicable only to jurisdictions with a
building code allowance for mid-rise, wood-frame construction. Currently, other
provinces are reviewing the British Columbia Building Code change and the
NEESWood Capstone testing results with an eye toward modifying their own
codes. One- to four-storey systems comply with the requirements of the
National Building Code of Canada (NBCC).
ATS Conversion Chart
Previous ATS System
Optimal ATS System
One-Storey System
CTDS11
CTDS1-5/8
—
CTDS1-3/4
CTDS12B
CTDS1-7/8
—
CTDS1-1
CTDS13B
CTDS1-1-1/8
Two-Storey System
CTDS21
CTDS2-5/8
—
CTDS2-3/4
CTDS22
CTDS2-7/8
—
CTDS2-1
CTDS23B
CTDS2-1-1/8
CTDS24B
CTDS2-7/8H*
Three-Storey System
CTDS31
CTDS3-5/8
—
CTDS3-3/4
CTDS32
CTDS3-7/8
—
CTDS3-1
CTDS33
CTDS3-1-1/8
CTDS34B
CTDS3-7/8H*
CTDS35B
CTDS3-1-1/8H
Four-Storey System
CTDS41
CTDS4-5/8
—
CTDS4-3/4
CTDS42C
CTDS4-7/8
—
CTDS4-1
CTDS43
CTDS4-1-1/8
CTDS44
CTDS4-7/8H
CTDS45B
CTDS4-1-1/8H
Five-Storey System
—
CTDS5-3/4
CTDS51
CTDS5-7/8*
—
CTDS5-1
CTDS52
CTDS5-1-1/8
CTDS53
CTDS5-7/8H
CTDS54
CTDS5-1-1/8H
CTDS54B
—
Six-Storey System
—
CTDS6-3/4
—
CTDS6-7/8
—
CTDS6-1
—
CTDS6-1-1/8
—
CTDS6-7/8H
—
CTDS6-1-1/8H
1. This chart explains that the naming scheme for these runs correspond to
the anchor bolt and first-floor rod diameter and strength. Designer shall
review and verify the adequacy of the optimal ATS as it may or may not
directly match the capacity of the previous ATS.
2. * refers to a rod size or rod type change between systems.
7
Skipped floors
There are several continuous tiedown systems available that
offer solutions to resist the high overturning forces inherent
in multi-storey, light-frame structures. Typically these systems
fall into one of two categories: those that call for every
floor to be tied off and those where floors are skipped.
A skipped-floor system restrains two or more floors
with a single restraint point to provide overturning
resistance. An all-floors-tied-off system differs in that
it establishes overturning restraint at every floor.
Although a skipped-floor system and an all-floors-tied-off
system initially appear to be similar, there are some significant
differences in load path and performance that could potentially
compromise the integrity of a structure. Skipping floors is
not recommended, and familiarization with potential issues
is strongly encouraged when choosing a tiedown system.
Issues to consider
with skipped floor systems:
INCREASE IN COMPONENT SIZES – In a skipped-floor system,
the overturning forces transfer up the building until a restraint
is reached. As a result, all elements at the restrained point have
to resist uplift forces for any non-restrained stories below. This
results in increased lumber, threaded rod, and bearing plate
sizes. In a tied-off system, the incremental uplift at each level
is transferred directly into the tiedown system at that level.
Point of
Restraint
DRIFT – A skipped-floors system that is properly designed to resist
demand loads may not be sufficient to satisfy drift requirements.
Test results indicate that skipping floors has the potential to
substantially increase interstorey drift. Even if drift analysis is not
required in you area, it is a critical element to multi-storey design.
REDUNDANCY – Even when appropriately designed, structural
elements can perform unexpectedly during major seismic
and high wind events. In a skipped-floor system, multiple
floors rely on a single component for their performance.
If that element fails, the entire uplift resistance for all nonrestrained floors below may be compromised. However, with
an all-floors-tied-off system, the lower floors do not rely on
the stability of the upper floors for their performance.
SHRINKAGE – In tiedown systems, wood shrinkage creates gaps
at the restraint points. When a floor does not have a restraint,
this gap will transfer up to the next restraint point, resulting in a
larger space between the nut and bearing plate. This additional
space will result in increased horizontal drift. In addition, it is
recommended that shrinkage is compensated for at every level.
CONSTRUCTION STABILITY – A functioning shearwall needs to
have holdowns installed to properly perform. A system where
all floors are tied off requires no additional shoring or bracing
during construction because the structure is restrained at each
level once the system is installed. In a skipped-floor system, the
designer or builder may want to consider requiring a temporary
bracing method during construction until the skipped-floor
system is completely installed. This temporary bracing can
help prevent collapse or any damage that might occur during
a seismic or wind event. In a tied-off system, all holdowns are
installed as the structure is built, ensuring that the shearwalls will
perform as designed if an event occurs during construction.
Do all floors need to be tied off?
Points of
Restraint
CTUD
TUD
Coupler
SKIPPED-FLOOR SYSTEM:
A single point of restraint
for multiple levels
8
ALL-FLOORS-TIED-OFF SYSTEM:
Overturning restraint
provided at each level
To learn more about
skipped-floor vs. tied-off systems
and Simpson Strong‑Tie® ATS testing,
visit www.strongtie.com/skip.
Sources of Deflection in continuous tiedown systems at rod termination
1.Rod elongation occurs between floor restraints.
2. Wood crushing occurs at the points where the bearing plate
bears onto the wood plates, and where the wood plates bear
onto the compression members.
3. Wood bending occurs between the compression members.
The deflection increases as the distance between the
supports is increased.
5
4
6
2
5
6
4
4. Bending of the steel plate.
2
5.Movement can occur when the nuts are not correctly tightened.
2
6. Wood shrinkage can occur, creating a space between the steel
plate and the nut. Shrinkage may be significantly increased when
the system terminates at a bridge block rather than double top plates.
3
3
1
Top Plate
1
Bridge Block
7.Rod elongation, wood crushing, wood bending, steel-plate bending,
nut movement, and wood shrinkage will occur at floor levels also,
and should be considered.
2
9
Ctud Coupling Take-Up Device
The CTUD is a combination coupler nut and take-up device. It compensates
for the slack that develops in the system due to the shrinkage of wood
members. It will accommodate up to 1" of movement and is available in
standard and reducing sizes for 5⁄8", 3⁄4", 7⁄8", 1" and 1 1⁄8" diameter Strong-Rod™
threaded rod or other threaded rod.
•IMPORTANT: Do not remove the activation pin until the isolator nut is
installed at the level above.
W
Up
•Design of the CTUD eliminates parts and simplifies installation.
•Easy installation saves time, resulting in a lower installed cost.
• Witness Holes™ allow for easy inspection to verify proper thread engagement.
•The positive stop at each end ensures that the rod is threaded to the
proper depth.
Witness
Holes
L
Activation
Pin
Installation:
•Remove shrink wrap from CTUD
•Thread the specified CTUD (wider end up) onto the embedded anchor
(in first-floor applications) or the Strong-Rod™ threaded rod from the
level below. Position so that the activation pin faces out for easy access.
•Thread the Strong-Rod threaded rod from the level above into the
CTUD. The CTUD is correctly installed when the anchor or threaded
rod is visible through both witness holes.
•Secure Strong-Rod threaded rod at the level above with specified
bearing plate and Isolator Nut. Attach Isolator Nut to sill plate above
with #8 x 3" screw (included). Continue system installation at each
level until the run is complete.
•Remove activation pin after level above is secured with Isolator Nut and
prior to covering.
Naming Scheme:
CTUD97
Coupling
Take-Up Device
Strong-Rod Diameter
from Level Above*
Strong-Rod™ Diameter
from Level Below*
CTUD
Patent Pending
Typical CTUD Installation
Model
No.
Threaded
Rod Dia.
(in)
W
(in)
L
(in)
CTUD55
CTUD65
CTUD66
CTUD75
CTUD76
CTUD77
CTUD87
CTUD88
CTUD97
CTUD98
CTUD99
⁄8 – 5⁄8
⁄4 – 5⁄8
3
⁄4 – 3⁄4
7
⁄8 – 5⁄8
7
⁄8 – 3⁄4
7
⁄8 – 7⁄8
1– 7⁄8
1–1
1 1⁄8 – 7⁄8
1 1⁄8 –1
1 1⁄8 –1 1⁄8
1 7⁄8
2
2
2
2
2
2 1⁄2
2 1⁄2
2 1⁄2
2 1⁄2
2 1⁄2
5
5 1⁄2
5 1⁄2
5 1⁄2
5 1⁄2
5 1⁄2
6 1⁄8
6 1⁄8
6 1⁄8
6 1⁄8
6 1⁄8
5
3
Deflection at
Factored
Factored
1
Resistance
Resistance3
(lbs)
(in)
20395
0.012
41205
0.073
41205
0.073
41205
0.073
41205
0.073
41205
0.073
68190
0.041
68190
0.041
68190
0.041
68190
0.041
68190
0.041
1.Factored resistances shown are limited by the factored tensile resistance of the
corresponding high-strength Strong-Rod threaded rod.
*Units in 1⁄8" Increments (Ex: 9 = 9⁄8" or 1 1⁄8")
ATUD/tud Take-Up Device
The TUD and ATUD are suitable for rod diameters from 1⁄2" up to 1 1⁄4".
The ATUDs will accommodate up to 3⁄4" of shrinkage, while the
ATUD9 and TUDs will accommodate up to 1" of shrinkage.
Installation:
•Install the specified bearing plate over the Strong-Rod™
L
threaded rod onto the bottom plate of the wall.
TUD9
•Remove shrink wrap from TUD. IMPORTANT: Do not remove
TUD10
activation pin until isolator nut is installed.
W
•Install TUD with either end up over Strong-Rod™ threaded Naming Scheme:
ATUD
rod and onto the bearing plate with the activation pin
TUD9
facing out.
•Install specified plate washer and then nut on top.
Maximum Rod
•Finger-tighten nut plus an additional 1⁄3- to 1⁄2-turn with
Clearance in
a wrench.
1
⁄8" Increments
Take-Up
(Ex: 9 = 9⁄8" or 1 1⁄8")
•Remove activation pin.
Device
10
Model
No.
Threaded
Rod Dia.
(in)
W
(in)
L
(in)
ATUD5
ATUD9*
TUD9
TUD10
⁄2 – 5⁄8
5
⁄8 –1 1⁄8
5
⁄8 –1 1⁄8
5
⁄8 –1 1⁄4
1 3⁄8
2 1⁄8
2 1⁄8
2 3⁄8
1 7⁄8
2 1⁄4
2 1⁄4
2 1⁄4
1
Deflection at
Factored
Factored
1
Resistance
Resistance3
(lbs)
(in)
7,880
0.009
18,670
0.016
41,585
0.015
54,480
0.034
Typical TUD Installation
1. Factored resistance shown is the maximum
factored compressive load that can be applied to
the component, independent of the rod capacity.
2. Deflection values may be linearly reduced for
lesser loads such as specified wind loads at h/500.
* Available June 2011.
strong-rod™ Threaded Rod
Strong-Rod™ threaded rods are the tension transfer element within the ATS.
The Strong-Rod threaded rod is threaded on both ends, with the top end having 48"
of thread to allow for installation flexibility. Information clearly etched on the shank
allows easy identification in the field.
Material: Standard (Model SR_) – min Fu = 58,000 psi, min Fy = 43,000 psi
High strength (Model SR_H) – min Fu = 120,000 psi, min Fy = 92,000 psi
Naming Scheme:
ATS-SR9
Anchor
Tiedown
System
Strong-Rod Diameter
in 1⁄8" Increments
Strong-Rod
(Ex: 9 = 9⁄8" or 1 1⁄8")
Finish: None
SMOOTH SHANK
12"
UNC CLASS 2A THREADS
Bottom End
ATS-SRXX STRONG-ROD •
48"
• 123456
Top End
Heat Treat
Batch Number
Model Number
Strong-Rod
Strong-Rod Technical Data
Model
No.
Diameter
(in)
Factored Tensile
Resistance, Tr
Effective
Diameter
(in)
Colour
Code
lbs
kN
⁄8
9530
42.45
0.560
Blue
⁄4
14055
62.61
0.680
Red
ATS-SR5
5
ATS-SR6
3
ATS-SR7
7
⁄8
19260
85.79
0.796
Green
ATS-SR8
1
25170
112.12
0.910
White
ATS-SR9
1
1 ⁄8
31870
141.96
1.024
Orange
⁄8
20395
90.85
0.560
Blue
⁄8
41205
183.54
0.680
Green
1 ⁄8
68190
303.74
1.024
Orange
ATS-SR5H
5
ATS-SR7H
7
ATS-SR9H
1
ATS-SR
Strong-Rod™
1. Factored resistances shown are the lower of 13.2.(a)(i), and 13.2.(a)(iii) of CSA S16-09.
ATS-SR
Strong-Rod
Strong-Rod™ Threaded Rod
Installation
11
Isolator Nut
Isolator nuts isolate the wood shrinkage to each level within the ATS system. This
segmenting of the movement ensures consistent performance. The isolator nut
consists of a heavy hex nut connected to a slotted washer, and is fastened with
one screw driven through the slotted washer and bearing plate into the bottom
plate. Isolator nuts are required on the bottom plate of the floor(s) above a level
where a CTUD is used.
Finish: Nut – none; Washer – Zinc plated
Installation:
•Thread the isolator nut onto the Strong-Rod™ threaded rod from the level
below until it is snug with the bearing plate, and tighten an additional ½ turn.
• Align one of the slots in the washer with the smaller hole in the
bearing plate so that a screw can pass through both.
•Drive #8 x 3" screw (provided) through the washer
and bearing plate into the bottom plate. A minimum
of 1 1⁄8" of penetration into the bottom plate is required.
Model
No.
Threaded Rod
Diameter
(in)
Fastener to
Bottom Plate
(provided)
Washer
O.D.
(in)
⁄8
(1) #8 x 3" screw
3.125
⁄4
(1) #8 x 3" screw
3.125
3.125
ATS-IN5KT
5
ATS-IN6KT
3
ATS-IN7KT
7
⁄8
(1) #8 x 3" screw
ATS-IN8KT
1
(1) #8 x 3" screw
3.125
ATS-IN9KT
1 1⁄8
(1) #8 x 3" screw
3.125
Isolator
Nut
1¹⁄₈" Min.
#8 x 3" screw
(included)
Isolator Nut Installation
CNW and ATS-C coupler nuts are used to connect one Strong-Rod™ threaded rod to another, and to connect to anchor bolts within the ATS system.
CNWs and ATS-C coupler nuts exceed the tensile capacity of the corresponding standard threaded rod. ATS-HSC coupler nuts exceed the
tension capacity of the corresponding high-strength threaded rod.
Finish: Zinc plated
Installation:
•Tighten the two rods until each all-thread rod can be fully seen in the witness hole.
Identification
notches on
•For transition couplers, thread the coupler onto the larger rod first, then thread the
Witness
high-strength
smaller rod into the coupler.
Holes
couplers
12
Dimensions (in)
Model
No.
Rod Diameter
H
CNW5⁄8
CNW3⁄4
CNW7⁄8
CNW1
CNW3⁄4 -5⁄8
CNW7⁄8 -5⁄8
ATS-C76
ATS-C85
ATS-C86
CNW1- 7 ⁄8
ATS-C95
ATS-C96
ATS-C97
ATS-C98
ATS-C99
ATS-HSC55
ATS-HSC75
ATS-HSC77
ATS-HSC97
ATS-HSC99
⁄8
3
⁄4
7
⁄8
1
3
⁄4 to 5⁄8
7
⁄8 to 5⁄8
7
⁄8 to 3⁄4
1 to 5⁄8
1 to 3⁄4
1 to 7⁄8
1 1⁄8 to 5⁄8
1 1⁄8 to 3⁄4
1 1⁄8 to 7⁄8
1 1⁄8 to 1
1 1⁄8
5
⁄8
7
⁄8 to 5⁄8
7
⁄8
1 1⁄8 to 7⁄8
1 1⁄8
1 7⁄8
2 1⁄4
2 1⁄2
2 3⁄4
1 3⁄4
2
2
2 1⁄4
2 1⁄4
2 1⁄4
3
3
3
3
3
2 1⁄8
2
2 1⁄2
3
3
5
Witness
Holes™
H
High-Strength Coupler
ATS-HSC
CNW or ATS-C
1.Additional coupler nuts, including
oversized (OST) couplers for
galvanized anchor bolts, are available.
Contact Simpson Strong‑Tie for details.
2.Shaded items are transition coupler nuts.
CNW or ATS-C
Transition
Coupler Nut
Coupler Nuts
ATS-AB Anchor Bolts
ATS-AB anchor bolts are pre-assembled anchor bolts that have been designed for use
with the ATS system in foundations poured against earth. They are available in 18", 24"
and 36" lengths. The heavy hex nuts are pressed onto the bolt to keep them in place.
Etching
provides
for easy
identification
Material: ASTM A307 or ASTM F1554 Grade 36; High-strength: ASTM A449 or
ASTM A193, Grade B7
Finish: None
Naming Scheme:
ATS-AB5H-24
Length
Length
ATS Anchor Bolt
Diameter and strength designation
L- ℓ1
ATS-AB Load Table
Model
No.
Dimensions (in)
Rod
Diameter
⁄8
Plate Washer
Size
ℓ1
lbs
kN
⁄8 x 1 ⁄2 x 1 ⁄2
1
1 ⁄4
8780
39.11
⁄8 x 2 x 2
1 3⁄8
12980
57.82
⁄8 x 2 1⁄4 x 2 1⁄4
1 1⁄2
17955
79.98
⁄8 x 2 ⁄2 x 2 ⁄2
5
1 ⁄8
23550
104.90
⁄8 x 2 3⁄4 x 2 3⁄4
1 3⁄4
29650
132.07
⁄8 x 1 1⁄2 x 1 1⁄2
1 1⁄4
18170
80.94
⁄8 x 2 1⁄4 x 2 1⁄4
1 1⁄2
37145
165.46
⁄8 x 2 ⁄4 x 2 ⁄4
1 ⁄4
63900
284.63
ATS-AB5
5
ATS-AB6
3
ATS-AB7
7
3
ATS-AB8
1
3
ATS-AB9
1 1⁄8
3
ATS-AB5H
5
⁄8
3
ATS-AB7H
7
⁄8
3
ATS-AB9H
1 ⁄8
3
3
1
⁄4
⁄8
1
Factored Tensile
Resistance, Tr
1
3
1
3
1
3
3
Heavy
Hex Nut
Plate
Washer
ℓ1
Heavy
Hex Nut
ATS-AB
Anchor Bolt
1.Factored resistances have been calculated in accordance with 25.3.2.1 CSA S16-09.
ANCHOR BOLT LOCATIONS
Anchor bolts shall be specified by the Designer.
1 - 2x4 or 1 - 2x6 = 41∕2"
2 - 2x4 or 2 - 2x6 = 6"
3 - 2x4 or 3 - 2x6 = 71∕2"
4 - 2x4 or 4 - 2x6 = 9"
5 - 2x4 or 5 - 2x6 = 101∕2"
Compression
members
1 - 2x4 or 1 - 2x6 = 41∕2"
2 - 2x4 or 2 - 2x6 = 6"
3 - 2x4 or 3 - 2x6 = 71∕2"
4 - 2x4 or 4 - 2x6 = 9"
5 - 2x4 or 5 - 2x6 = 101∕2"
6"
Perpendicular-To-Wall Installation
Compression
members
41∕2"
6"
71∕2"
9"
101∕2"
1 - 2x4 or 1 - 2x6
2 - 2x4 or 2 - 2x6
3 - 2x4 or 3 - 2x6
4 - 2x4 or 4 - 2x6
5 - 2x4 or 5 - 2x6
Compression
members
Corner Installation
Mid-Wall Installation
13
ATS-AB Anchor Bolts
Concrete Anchorage for Wind Design
Model No.
ATS-AB5
ATS-AB6
ATS-AB7
ATS-AB8
ATS-AB9
ATS-AB5H
ATS-AB7H
ATS-AB9H
Minimum Anchorage Dimensions (in)
f'c = 20 MPa
f'c = 25 MPa
f'c = 30 MPa
de
W
de
W
de
W
5.5
18.0
5.0
16.5
4.5
15.0
6.3
18.9
5.9
17.6
5.5
16.5
8.0
26.0
7.5
24.5
7.0
23.0
9.4
28.1
8.7
26.2
8.2
24.6
11.5
37.0
10.5
34.0
10.0
32.5
8.0
25.5
7.5
24.0
7.0
22.5
13.0
41.0
12.0
38.0
11.5
36.5
18.0
56.5
16.5
52.0
16.0
50.5
½W
W
½W
½W
½W
Foundation Design
by Others
W
Plan
1. See notes below.
Concrete Anchorage for Seismic Design
Model No.
ATS-AB5
ATS-AB6
ATS-AB7
ATS-AB8
ATS-AB9
ATS-AB5H
ATS-AB7H
ATS-AB9H
Minimum Anchorage Dimensions (in)
f'c = 20 MPa
f'c = 25 MPa
f'c = 30 MPa
de
W
de
W
de
W
6.5
21.0
6.0
19.5
5.5
18.0
7.6
22.9
7.1
21.3
6.7
20.0
10.0
32.0
9.5
30.5
8.5
27.5
11.3
34.0
10.6
31 7
9.9
29.8
14.0
44.5
13.0
41.5
12.0
38.5
10.0
31.5
9.0
28.5
8.5
27.0
15.5
48.5
14.5
45.5
13.5
42.5
22.0
68.5
20.0
62.5
19.0
59.5
1. For designs in regions where IEFaSa(0.2)≥0.35 and the load combinations include earthquake
effects as per D.4.3.3 CSA A23.3-04. For regions where IEFaSa(0.2)<0.35, use the anchorage
design for Wind.
2. Anchorage dimensions have been calculated in accordance with CSA A23.3-04 Annex D
assuming ductile steel failure and no supplementary reinforcing (Condition B).
3. These tables are to be used with Simpson Strong-Tie® ATS AB-Anchor Bolts only.
4. ABL cannot be used with ATS-AB.
de
Anchor Bolt
Plate Washer
Concrete
cover
per code
½W
(Min.)
½W
(Min.)
W
Section
Note:
1. Refer to anchorage tables.
2. Foundation and stemwall (size and reinforcement) by others.
3. Alternate anchorage to be provided by Designer.
ATS-ABR anchor bolt rods are rods for use with the ABL anchor bolt locator.
When these are used with the ABL, they combine to make an economical
podium-deck anchorage solution. They are available in 18", 24", 30" and 36"
lengths.
ATS-ABR Anchor Bolt Rods
Etching
provides
for easy
identification
Material: ASTM A307 or ASTM F1554 Grade 36; high-strength A449 or
ASTM A193 Grade B7
Finish: None
Model
No.
14
Dimensions
(in)
Factored Tensile
Resistance, Tr
Rod
Diameter
lbs
kN
⁄8
8780
39.11
⁄4
12980
57.82
⁄8
17955
79.98
ATS-ABR5
5
ATS-ABR6
3
ATS-ABR7
7
ATS-ABR8
1
23550
104.90
ATS-ABR9
1 1⁄8
29650
132.07
ATS-ABR5H
5
⁄8
18170
80.94
ATS-ABR7H
7
⁄8
37145
165.46
ATS-ABR9H
1 ⁄8
63900
284.63
1
1.Factored resistances have been calculated in accordance with
25.3.2.1 CSA S16-09.
ℓ
Naming Scheme:
ATS Anchor Bolt Rod
ATS-ABR7-18
Length
Diameter and strength designation
ABL Anchor Bolt Locator
The ABL enables the accurate and secure placement of anchor bolts on concrete-deck
forms prior to concrete placement. The structural heavy hex nut is attached to
a pre-formed steel “chair”, which eliminates the need for an additional nut on the
bottom of the anchor bolt.
Features
•Designed for optimum concrete flow
•Installs with (2) nails or (2) screws
•Provides 1" standoff (clear cover) for anchor bolts
Material: Nut – Heavy Hex, Chair – Steel
Finish: Nut – None, Chair – G90
Model
No.
ABL
Anchor Bolt
Diameter
ABL4-1
1
ABL5-1
5
ABL6-1
3
ABL7-1
7
ABL8-1
1"
ABL9-1
1 1⁄8"
ABL10-1
1 1⁄4"
⁄2"
⁄8"
⁄4"
⁄8"
Typical ABL Installation
Note: ABL cannot be used with ATS-AB. See ATS-ABR.
Contact Simpson Strong‑Tie for
the ABL that fits hot-dip galvanized
anchors.
15
Bearing Plates
Bearing plates are used to tie down individual levels within the system.
They resist incremental bearing loads by spreading forces to minimize
crushing of the wood when the system is loaded. DW plates are used
when TUDs or weldable cages are specified.
W
³⁄₈" Diameter
(ATS-BP Only)
Material: ASTM A36
Finish: BP – Powder Coated
DW – Powder Coated
L
T
ATS Bearing Plate
ATS Bearing Plate Specifications
ATS-DW5
ATS-DW6
ATS-DW7
ATS-DW8
ATS-DW9
ATS-DW10
ATS-BP5-3X3.5
ATS-BP5-3X5.5
ATS-BP6-3X5.5
ATS-BP7-3X5.5
ATS-BP8-3X5.5
ATS-BP9-3X5.5
ATS-BP5-5X5.5
ATS-BP6-5X5.5
ATS-BP7-5X5.5
ATS-BP8-5X5.5
ATS-BP9-5X5.5
ATS-BP10-3X9
ATS-BP10-3X12
ATS-BP10-3X15
ATS-BP10-5X9
ATS-BP10-5X12
Factored Bearing Resistance, Qr
W
L
T
Hole
Diameter
3
3
3
3
3
3
3
3
3
3
3
3
5
5
5
5
5
3
3
3
5
5
2 7⁄8
2 7⁄8
2 7⁄8
2 7⁄8
2 7⁄8
2 7⁄8
3 1⁄2
5 1⁄2
5 1⁄2
5 1⁄2
5 1⁄2
5 1⁄2
5 1⁄2
5 1⁄2
5 1⁄2
5 1⁄2
5 1⁄2
9
12
15
9
12
⁄4
3
⁄4
3
⁄4
3
⁄4
3
⁄4
3
⁄4
3
⁄8
5
⁄8
5
⁄8
5
⁄8
1
⁄2
5
⁄8
3
⁄4
5
⁄8
5
⁄8
1
⁄2
5
⁄8
1
1 1⁄2
1 3⁄4
1
1 1⁄2
⁄16
13
⁄16
15
⁄16
1 1⁄16
1 3⁄16
1 5⁄16
11
⁄16
11
⁄16
13
⁄16
15
⁄16
1 1⁄16
1 3⁄16
11
⁄16
13
⁄16
15
⁄16
1 1⁄16
1 3⁄16
1 5⁄16
1 5⁄16
1 5⁄16
1 5⁄16
1 5⁄16
3
D.Fir-L
lbs
—
—
—
—
—
—
11640
18110
17900
17660
14885
17095
30730
30515
30280
25685
29715
26980
36645
46310
46310
62415
11
S-P-F
kN
—
—
—
—
—
—
51.78
80.56
79.63
78.56
66.21
76.05
136.70
135.74
134.70
114.26
132.18
120.02
163.01
206.01
206.01
277.65
lbs
—
—
—
—
—
—
8805
13705
13545
13365
13160
12940
23255
23095
22915
22710
22490
20415
27730
35045
35045
47235
kN
—
—
—
—
—
—
39.17
60.97
60.25
59.45
58.54
57.56
103.45
102.74
101.94
101.02
100.04
90.81
123.35
155.89
155.89
210.12
Colour
Code
Blue
Red
Green
White
Orange
Purple
Blue
Blue
Red
Green
White
Orange
Blue
Red
Green
White
Orange
Purple
Purple
Purple
Purple
Purple
1.Factored resistances shown are the lower of the bending capacity of the plate as per 13.5 CSA S16-09 or the bearing of the wood plates as per 5.5.7 CSA O86-09.
Weldable CageS
The ATS weldable cage is for use on projects where the run is to be anchored
to steel beams. Beam design is the responsibility of the Designer.
ATS
Weldable
Cage
Material: Side Plates - ASTM A36; Tube - ASTM A500, Grade B
Finish: Gray Paint
ATS Weldable Cage Capacities
Dimensions (in)
Model No.
16
Weld
Length
lbs
kN
⁄16
2
23435
104.39
⁄4
2
24,300
108.24
⁄4
3
46865
208.75
⁄4
3
72900
324.72
W
H
⁄16
2
16
3
⁄4
2
16
1
⁄4
3
16
1
⁄8
3
16
1
ATS-1/2-2B
3
ATS-1/2-2C
1
ATS-1/2-2D
1
ATS-1/2-2E
3
Factored Tensile
Resistance, Tr
Weld
Size
T
H
1.1" maximum rod diameter for ATS 1/2-2B cage and ATS 1/2-2C cage.
2.1 1⁄8" maximum rod diameter for ATS 1/2-2D and ATS 1/2-2E cages.
3.Field welding to be done in accordance with CSA W59 by a welder fully licensed
under CSA W47.1 using E49XX electrodes. All welding to be approved by the Designer.
D
W
Floor not
shown
for clarity
ATS-DW
Plates
WS
L
Steel beam and web
stiffeners by Designer
T
Weldable Cage
Steel Beam Detail
Dimensions (in)
Model No.
Design Example
DESIGN NOTES
The following is an example of how ATS is selected and designed.
The Designer shall determine the cumulative overturning tension and compression forces at each floor. The ATS components (Strong-Rod™
threaded rod and bearing plates) are selected on the basis of the factored tension forces. The Designer should then select the lumber at the
ends of the shearwall on the basis of the factored forces. Note that the compression forces are typically greater than the tension forces due to
combinations of additional forces such as dead and live load.
Simpson Strong‑Tie® Anchor Tiedown System component capacities are selected to meet or exceed the design forces provided and determined
by the Designer. Simpson Strong‑Tie has not confirmed and is not responsible for any of the design, engineering, calculations or derivation of
the structural forces related to the building.
The Designer is responsible for evaluating the effects of lumber shrinkage and ATS elongation on shearwall drift. Simpson Strong‑Tie has
not confirmed and is not responsible for verifying the shearwall system’s adherence to building code drift requirements or its performance in
consideration of structural deformation compatibility.
For simplicity of the design and installation, it is recommended that the Designer group similar runs together.
Given:NBCC 2010
Wall geometry and shear forces are shown in Figure 1 below
Douglas Fir-Larch wall plates
4" Nominal wall thickness
12" Floor thickness
T3
T1 = Cumulative OT Tension L1 = [15(9) + 12.5(6) + 3(10)] ∕ 3.66 = 65.57kN
Incremental OT Force L2 = 65.57 - 34.84 = 30.73kN
Level 3
3m
Storey Shear
PL3 = 10kN
12.5kN
T3 = Cumulative OT Tension L3 = [15(3)] ∕ 3.66 = 12.30kN
Determine the incremental overturning and incremental forces at each level.
These are typically the difference in the cumulative forces at the stories above
and below. These forces are generated at each level, and are transferred
into the rod by the bearing plate and nut.
PR = 5kN
15kN
The moment arm is the distance between the centerline of compression
members and centerline of tension members. This is typically the distance
between tension rods on each end of the shearwall. For tension loads, gravity
loads have not been included.
T2 = Cumulative OT Tension L2 = [15(6) + 12.5(3)] ∕ 3.66 = 34.84kN
Roof
Storey Shear
STEP 1: Determine the cumulative overturning and incremental
forces based on the applied storey shear:
T2
Level 2
3m
Storey Shear
PL2 = 10kN
10kN
Incremental OT Force L3 = 34.84 - 12.3 = 22.54kN
Incremental OT Force roof = 12.30kN
T1
Level 1
3m
Figure 2 below shows the load path at level 2.
Cumulative OT Tension Force
at Level 2 is T2 = 34.84kN
ATS-DW6
ATS-TUD9
Incremental OT Force =
T1 - T2 = 30.73kN
Level 2
3.66m
(Moment Arm)
Figure 1
Determine the cumulative compression forces in the studs at
the end of the shearwalls.
P = Forces due to gravity loads.
Cumulative OT Compression L1 = T1 + 5 + 10 + 10 = 90.57 kN
Cumulative OT Compression L2 = T2 + 5 + 10 = 49.84 kN
Cumulative OT Tension Force
at Level 1 is T1 = 65.57kN
Figure 2
Cumulative OT Compression L3 = T3 + 5 = 17.30 kN
17
Design Example
STEP 2: Select system and verify tension capacities
ATS-N5 Nut
Try: CTDS3-7/8 (see page 22)
Storey
3rd Floor
2nd Floor
ATS-BP5-3x3.5
bearing plate
Load Component
Capacity
Factored Tensile
Resistance, Tr
42.45
Incremental Bearing
Resistance
78.66
>
22.54
o.k.
Factored Tensile
Resistance, Tr
79.98
>
34.84
o.k.
Incremental Bearing
Resistance
78.66
>
30.73
o.k.
Factored Tensile
Resistance, Tr
1st Floor
Factored Load
>
12.30
o.k.
79.98
>
65.57
o.k.
Cumulative OT Compression Force
Req. Studs
Each Side of
ATS Rod
6"
CNW ∕8- ∕8
coupler nut
7
5
ATS-IN7 Nut
ATS-BP7-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR7
Strong-Rod
ATS-CTUD77
coupling
take-up device
STEP 3: Select compression members (see pages 39-40)
Storey
ATS-SR5
Strong-Rod™
2x4 D.Fir-L Studs
Compression
Capacity (2.74 m)
6"
ATS-N7 Nut
ATS-DW7
3rd Floor
17.3
(1) 2x4
32.9
o.k.
2nd Floor
49.84
(2) 2x4
65.81
o.k.
1st Floor
90.57
(3) 2x4
98.71
o.k.
ATS-TUD9
take-up device
ATS-BP7-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR7
Strong-Rod
STEP 4: The Solution
Use CTDS3-7/8 with the compression members listed in STEP 3.
6"
CNW 7∕8
coupler nut
Take-Up Devices
The TUD and CTUD work differently. The TUD sits on top of a bearing plate and
expands to compensate for the level below. Because the rod passes through the
device and cannot shrink with the structure, any shrinkage that occurs at that level
accumulates to the level above. See Figure 3.
ATS-ABR7
anchor bolt
The CTUD is a coupling device which connects the two rods together and
compensates for shrinkage at the level above it. Because the CTUD contracts as the
level above shrinks, it allows the rod to move down with the floor. Therefore, any
shrinkage that occurs at that level does not accumulate to the next level. See Figure 4.
This catalogue uses the optimal Anchor Tiedown System where a combination of TUD
and CTUD take-up devices are used. Selection of take-up devices is not required if the
Designer uses one of the standard systems listed on pages 19 through 37.
Two types of take-up devices are offered for the Simpson Strong-Tie Anchor Tiedown
System: the TUD (or ATUD) take-up device, and the CTUD coupling take-up device. The
TUD is the more economical solution and should be used when possible.
2
1
1 Wood shrinks
and settles
2 Nut moves down
with sole plate
3 Take-up device
1 Wood shrinks and settles
2 Gap occurs between plate and nut
3 Take-up device expands to fill gap
18
2
3
contracts with
rod inside
3
1
Figure 3
Figure 4
ONE-Storey Systems
ATS System
CTDS1-5/8
Plates/Studs
1st floor
Factored Tensile
Resistance, Tr
8' Posts
CTDS1-3/4
CTDS1-7/8
D.Fir-L
S-P-F
D.Fir-L
S-P-F
D.Fir-L
S-P-F
kN
39.11
39.11
57.82
57.82
79.98
79.98
lbs
8780
8780
12980
12980
17955
17955
2x4 framing (1) - 2x4 ea. side (2) - 2x4 ea. side (2) - 2x4 ea. side (2) - 2x4 ea. side (2) - 2x4 ea. side (3) - 2x4 ea. side
2x6 framing (1) - 2x6 ea. side (1) - 2x6 ea. side (1) - 2x6 ea. side (1) - 2x6 ea. side (1) - 2x6 ea. side (2) - 2x6 ea.side
See footnotes below.
ATS System
CTDS1-1
Plates/Studs
1st floor
Factored Tensile
Resistance, Tr
8' Posts
CTDS1-1 1/8
D.Fir-L
S-P-F
D.Fir-L
S-P-F
kN
104.90
104.90
132.07
123.52
lbs
23550
23550
29650
27730
2x4 framing (3) - 2x4 ea. side (3) - 2x4 ea. side (4) - 2x4 ea. side (4) - 2x4 ea. side
1.Unless specifically requested, anchor bolts are not included in the system runs.
2.Post design is based on the tension capacity of the system. The Designer is responsible for verifying
that posts are capable of resisting all required load combinations.
3.The factored tensile resistance includes a check for anchorage design.
ATS-N5 nut
ATS-N6 nut
ATS-BP5-3x3.5
bearing plate
ATS-BP6-3x5.5
bearing plate
6"
6"
ATS-SR5
Strong-Rod™
threaded rod
ATS-SR6
Strong-Rod™
threaded rod
CNW 5∕8
coupler nut
CNW 3∕4
coupler nut
ATS-ABR5
anchor bolt
ATS-ABR6
anchor bolt
CTDS1-5/8
CTDS1-3/4
Anchorage-to-concrete and foundation design by Designer.
19
ONE-Storey Systems
ATS-N7 nut
ATS-N8 nut
ATS-DW7
ATS-DW9
ATS-BP10-3x9
bearing plate
ATS-BP10-3x12
bearing plate
6"
6"
ATS-SR7
Strong-Rod™
threaded rod
ATS-SR8
Strong-Rod™
threaded rod
CNW 7∕8
coupler nut
CNW1
coupler nut
ATS-ABR7
Anchor Bolt
ATS-ABR8
anchor bolt
CTDS1-7/8
CTDS1-1
ATS-N9 nut
ATS-BP10-3x12
bearing plate
6"
ATS-SR9
Strong-Rod™
threaded rod
ATS-C99
coupler nut
ATS-ABR9
anchor bolt
CTDS1-1 1/8
20
ATS-DW9
Two-Storey Systems
ATS System
CTDS2-5/8
Factored Tensile
Resistance, Tr
2nd floor
1st floor
8' Posts
CTDS2-3/4
CTDS2-7/8
D.Fir-L
S-P-F
D.Fir-L
S-P-F
D.Fir-L
S-P-F
kN
39.11
39.11
42.45
39.22
42.45
39.22
lbs
8780
8780
9530
8805
9530
8805
Plates/Studs
Incremental
Bearing Resistance
kN
39.11
39.11
57.82
57.82
78.66
59.53
lbs
8780
8780
12980
12980
17660
13365
Factored Tensile
Resistance, Tr
kN
39.11
39.11
57.82
57.82
79.98
79.98
lbs
8780
8780
12980
12980
17955
17955
8' Posts
ATS System
CTDS2-1
Plates/Studs
Factored Tensile
Resistance, Tr
2nd floor
1st floor
8' Posts
CTDS2-1 1/8
CTDS2-7/8H
D.Fir-L
S-P-F
D.Fir-L
S-P-F
D.Fir-L
kN
62.61
60.33
85.79
85.79
85.79
S-P-F
85.79
lbs
14055
13545
19260
19260
19260
19260
Incremental
Bearing Resistance
kN
66.30
58.62
76.15
57.64
78.66
59.53
lbs
14885
13160
17095
12940
17660
13365
Factored Tensile
Resistance, Tr
kN
104.90
104.90
132.07
132.07
164.45
145.32
lbs
23550
23550
29650
29650
36920
32625
8' Posts
2.Post design is based on the tension capacity of the system. The Designer is responsible for verifying that posts are capable of resisting all required load combinations.
ATS-N5 nut
ATS-N5 nut
ATS-BP5-3x3.5
bearing plate
ATS-BP5-3x3.5
bearing plate
ATS-SR5
Strong-Rod™
threaded rod
6"
ATS-SR5
Strong-Rod™
threaded rod
CNW ∕8
coupler nut
CNW ∕4- ∕8
coupler nut
ATS-IN5 nut
ATS-IN6 nut
ATS-BP5-3x3.5
bearing plate
ATS-BP6-3x5.5
bearing plate
5
3
Solid
blocking
(typ.)
ATS-SR5
Strong-Rod
6"
ATS-CTUD55
coupling
take-up device
ATS-ABR5
anchor bolt
6"
5
Solid
blocking
(typ.)
ATS-SR6
Strong-Rod
6"
ATS-CTUD66
coupling
take-up device
ATS-ABR6
anchor bolt
CTDS2-5/8
CTDS2-3/4
21
TWO-Storey Systems
ATS-N5 nut
ATS-N6 nut
ATS-BP5-3x3.5
bearing plate
ATS-BP6-3x5.5
bearing plate
ATS-SR5
Strong-Rod™
6"
ATS-SR6
Strong-Rod™
CNW 7∕8-5∕8
coupler nut
ATS-C86
coupler nut
ATS-IN7 nut
ATS-IN8 nut
ATS-BP7-3x5.5
bearing plate
ATS-BP8-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR7
Strong-Rod
6"
ATS-CTUD77
coupling
take-up device
ATS-ABR7
anchor bolt
6"
Solid
blocking
(typ.)
ATS-SR8
Strong-Rod
6"
ATS-CTUD88
coupling
take-up device
ATS-ABR8
anchor bolt
CTDS2-7/8
ATS-DW7
ATS-BP10-3x9
bearing plate
ATS-DW7
ATS-BP10-3x9
bearing plate
ATS-SR7
Strong-Rod™
6"
ATS-SR7
Strong-Rod™
ATS-C97
coupler nut
CNW ∕8
coupler nut
ATS-IN9 nut
ATS-IN7 nut
ATS-BP9-3x5.5
bearing plate
ATS-BP7-3x5.5
bearing plate
6"
7
Solid
blocking
(typ.)
ATS-SR9
Strong-Rod
6"
ATS-CTUD99
coupling
take-up device
ATS-ABR9
anchor bolt
Solid
blocking
(typ.)
ATS-SR7H
Strong-Rod
6"
ATS-CTUD77
coupling
take-up device
ATS-ABR7H
anchor bolt
CTDS2-1 1/8
22
ATS-N7 nut
CTDS2-7/8H
ATS-N7 nut
CTDS2-1
Three-Storey Systems
ATS System
CTDS3-5/8
Factored Tensile
Resistance, Tr
3rd floor
8' Posts
CTDS3-7/8
S-P-F
D.Fir-L
S-P-F
D.Fir-L
S-P-F
kN
39.11
39.11
42.45
39.22
42.45
39.22
lbs
8780
8780
9530
8805
9530
8805
Incremental
Bearing Resistance
kN
39.11
39.11
57.82
57.82
78.66
59.53
lbs
8780
8780
12980
12980
17660
13365
Factored Tensile
Resistance, Tr
kN
39.11
39.11
57.82
57.82
79.98
79.98
lbs
8780
8780
12980
12980
17955
17955
2nd floor
1st floor
CTDS3-3/4
D.Fir-L
Plates/Studs
8' Posts
Incremental
Bearing Resistance
kN
39.11
39.11
57.82
57.82
78.66
59.53
lbs
8780
8780
12980
12980
17660
13365
Factored Tensile
Resistance, Tr
kN
39.11
39.11
57.82
57.82
79.98
79.98
lbs
8780
8780
12980
12980
17955
17955
8' Posts
ATS-N5 Nut
ATS-N5 nut
ATS-N5 Nut
ATS-BP5-3x3.5
bearing plate
ATS-BP5-3x3.5
bearing plate
ATS-BP5-3x3.5
bearing plate
ATS-SR5
Strong-Rod™
ATS-SR5
Strong-Rod™
6"
CNW 7∕8
coupler nut
ATS-SR5
Strong-Rod™
6"
CNW 3∕4-5∕8
coupler nut
CNW 7∕8-5∕8
coupler nut
ATS-IN5 nut
ATS-IN6 Nut
ATS-IN7 Nut
ATS-BP5-3x3.5
bearing plate
ATS-BP6-3x5.5
bearing plate
ATS-BP7-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR5
Strong-Rod
ATS-CTUD55
coupling
take-up device
Solid
blocking
(typ.)
ATS-SR6
Strong-Rod
ATS-CTUD66
coupling
take-up device
6"
ATS-CTUD77
coupling
take-up device
6"
ATS-N6 nut
ATS-DW5
ATS-DW6
ATS-DW7
ATS-TUD9
take-up device
ATS-TUD9
take-up device
ATS-TUD9
take-up device
Solid
blocking
(typ.)
ATS-SR5
Strong-Rod
6"
6"
ATS-N7 Nut
ATS-BP6-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR6
Strong-Rod
6"
ATS-BP7-3x5.5
bearing plate
CNW 3∕4
coupler nut
CNW 7∕8
coupler nut
ATS-ABR5
anchor bolt
ATS-ABR6
anchor bolt
ATS-ABR7
anchor bolt
CTDS3-3/4
Solid
blocking
(typ.)
ATS-SR7
Strong-Rod
CNW 5∕8
coupler nut
CTDS3-5/8
Solid
blocking
(typ.)
ATS-SR7
Strong-Rod
ATS-N5 nut
ATS-BP5-3x3.5
bearing plate
6"
6"
CTDS3-7/8
23
ATS System
CTDS3-1
Factored Tensile
Resistance, Tr
3rd floor
8' Posts
CTDS3-7/8H
S-P-F
D.Fir-L
S-P-F
D.Fir-L
kN
62.61
60.33
78.66
59.53
62.61
S-P-F
60.33
lbs
14055
13545
17660
13365
14055
13545
Incremental
Bearing Resistance
kN
66.30
58.62
76.15
57.64
78.66
59.53
lbs
14885
13160
17095
12940
17660
13365
Factored Tensile
Resistance, Tr
kN
104.90
104.90
132.07
117.17
141.27
119.87
lbs
23550
23550
29650
26305
31715
26910
2nd floor
1st floor
CTDS3-1 1/8
D.Fir-L
Plates/Studs
8' Posts
Incremental
Bearing Resistance
kN
66.30
58.62
76.15
57.64
78.66
59.53
lbs
14885
13160
17095
12940
17660
13365
Factored Tensile
Resistance, Tr
kN
104.90
104.90
132.07
132.07
165.46
165.46
lbs
23550
23550
29650
29650
37145
37145
8' Posts
ATS-N6 nut
ATS-N7 nut
ATS-N6 nut
ATS-BP6-3x5.5
bearing plate
ATS-BP7-3x5.5
bearing plate
ATS-BP6-3x5.5
bearing plate
ATS-SR7
Strong-Rod™
6"
ATS-C86
coupler nut
ATS-IN8 nut
ATS-IN9 nut
ATS-IN7 Nut
ATS-BP8-3x5.5
bearing plate
ATS-BP9-3x5.5
bearing plate
ATS-BP7-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-CTUD88
coupling
take-up device
Solid
blocking
(typ.)
ATS-SR9
Strong-Rod
ATS-CTUD99
coupling
take-up device
6"
ATS-CTUD77
coupling
take-up cevice
6"
ATS-N9 nut
ATS-DW8
ATS-DW9
ATS-DW7
ATS-TUD9
take-up device
ATS-TUD9
take-up device
ATS-TUD9
take-up device
Solid
blocking
(typ.)
ATS-SR8
Strong-Rod
6"
6"
ATS-N7 nut
ATS-BP9-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR9
Strong-Rod
6"
ATS-BP7-3x5.5
bearing plate
ATS-C99
coupler nut
ATS-HSC77
coupler nut
ATS-ABR8
anchor bolt
ATS-ABR9
anchor bolt
ATS-ABR7H
anchor bolt
CTDS3-1 1/8
Solid
blocking
(typ.)
ATS-SR7H
Strong-Rod
CNW1
coupler nut
CTDS3-1
Solid
blocking
(typ.)
ATS-SR7H
Strong-Rod
ATS-N8 nut
ATS-BP8-3x5.5
bearing plate
6"
ATS-HSC76
coupler nut
ATS-C97
coupler nut
ATS-SR8
Strong-Rod
24
ATS-SR6
Strong-Rod™
6"
6"
CTDS3-7/8H
ATS-SR6
Strong-Rod™
ATS System
CTDS3-1 1/8H
Plates/Studs
Factored Tensile
Resistance, Tr
3rd floor
2nd floor
1st floor
8' Posts
ATS-N7 nut
D.Fir-L
S-P-F
kN
85.79
85.79
lbs
19260
19260
2x4 framing (3) - 2x4 ea. side (3) - 2x4 ea. side
ATS-BP10-3x9
bearing plate
ATS-SR7
Strong-Rod™
Incremental
Bearing Resistance
kN
78.66
59.53
ATS-HSC77
coupler nut
lbs
17660
13365
ATS-IN7 nut
Factored Tensile
Resistance, Tr
kN
164.45
145.32
lbs
36920
32625
ATS-BP7-3x5.5
bearing plate
8' Posts
kN
76.15
57.64
lbs
17095
12940
ATS-CTUD97
coupling
take-up device
Factored Tensile
Resistance, Tr
kN
240.60
202.96
ATS-N9 nut
lbs
54015
45565
ATS-DW9
2x4 framing
—
—
2.Post design is based on the tension capacity of the system. The Designer is responsible for
verifying that posts are capable of resisting all required load combinations.
6"
Solid
blocking
(typ.)
ATS-SR7H
Strong-Rod
Incremental
Bearing Resistance
8' Posts
ATS-DW7
6"
ATS-TUD9
take-up device
ATS-BP9-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR9H
Strong-Rod
6"
ATS-HSC99
coupler nut
ATS-ABR9H
anchor bolt
CTDS3-1 1/8H
Anchorage-to-concrete and
foundation design by Designer.
25
Four-Storey Systems
ATS System
CTDS4-5/8
Factored Tensile
Resistance, Tr
4th floor
3rd floor
2nd floor
1st floor
8' Posts
CTDS4-3/4
CTDS4-7/8
D.Fir-L
S-P-F
D.Fir-L
S-P-F
D.Fir-L
S-P-F
kN
39.11
39.11
42.45
39.22
42.45
39.22
lbs
8780
8780
9530
8805
9530
8805
Plates/Studs
2x4 framing
(1) - 2x4 ea.side (2) - 2x4 ea. side (2) - 2x4 ea. side (2) - 2x4 ea. side (2) - 2x4 ea. side (2) - 2x4 ea. side
Incremental
Bearing Resistance
kN
39.11
39.11
42.45
42.45
42.45
42.45
lbs
8780
8780
9530
9530
9530
9530
Factored Tensile
Resistance, Tr
kN
39.11
39.11
42.45
42.45
42.45
42.45
lbs
8780
8780
9530
9530
9530
9530
8' Posts
Incremental
Bearing Resistance
kN
39.11
39.11
57.82
57.82
78.66
59.53
lbs
8780
8780
12980
12980
17660
13365
Factored Tensile
Resistance, Tr
kN
39.11
39.11
57.82
57.82
79.98
79.98
lbs
8780
8780
12980
12980
17955
17955
8' Posts
Incremental
Bearing Resistance
kN
39.11
39.11
57.82
57.82
78.66
59.53
lbs
8780
8780
12980
12980
17660
13365
Factored Tensile
Resistance, Tr
kN
39.11
39.11
57.82
57.82
79.98
79.98
lbs
8780
8780
12980
12980
17955
17955
8' Posts
CTDS4-1
Plates/Studs
Factored Tensile
Resistance, Tr
4th floor
3rd floor
2nd floor
1st floor
8' Posts
CTDS4-1 1/8
CTDS4-7/8H
D.Fir-L
S-P-F
D.Fir-L
S-P-F
D.Fir-L
kN
62.61
60.33
62.61
60.33
62.61
60.33
lbs
14055
13545
14055
13545
14055
13545
Incremental
Bearing Resistance
kN
62.61
60.33
78.66
59.53
78.66
59.53
lbs
14055
13545
17660
13365
17660
13365
Factored Tensile
Resistance, Tr
kN
62.61
62.61
85.79
85.79
85.79
85.79
lbs
14055
14055
19260
19260
19260
19260
8' Posts
Incremental
Bearing Resistance
kN
66.30
58.62
76.15
57.64
78.66
59.53
lbs
14885
13160
17095
12940
17660
13365
Factored Tensile
Resistance, Tr
kN
104.90
104.90
132.07
132.07
164.45
145.32
lbs
23550
23550
29650
29650
36920
32625
8' Posts
Incremental
Bearing Resistance
kN
66.30
58.62
76.15
57.64
78.66
59.53
lbs
14885
13160
17095
12940
17660
13365
Factored Tensile
Resistance, Tr
kN
104.90
104.90
132.07
132.07
165.46
165.46
lbs
23550
23550
29650
29650
37145
37145
8' Posts
26
S-P-F
ATS System
Four-Storey Systems
ATS-N5 nut
ATS-N5 nut
ATS-N5 nut
ATS-BP5-3x3.5
bearing plate
ATS-BP5-3x3.5
bearing plate
ATS-BP5-3x3.5
bearing plate
ATS-SR5
Strong-Rod™
ATS-SR5
Strong-Rod™
6"
CNW 5∕8
coupler nut
CNW 5∕8
coupler nut
CNW 5∕8
coupler nut
ATS-IN5 nut
ATS-IN5 nut
ATS-IN5 Nut
ATS-BP5-3x3.5
bearing plate
ATS-BP5-3x5.5
bearing plate
ATS-BP5-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR5
Strong-Rod
6"
ATS-CTUD55
coupling
take-up device
Solid
blocking
(typ.)
ATS-SR5
Strong-Rod
6"
ATS-CTUD65
coupling
take-up device
ATS-IN7 nut
ATS-BP5-3x3.5
bearing plate
ATS-BP6-3x5.5
bearing plate
ATS-BP7-3x5.5
bearing plate
ATS-CTUD55
coupling
take-up device
Solid
blocking
(typ.)
ATS-SR6
Strong-Rod
ATS-CTUD66
coupling
take-up device
6"
ATS-N5 nut
ATS-DW6
ATS-DW7
ATS-TUD9
take-up device
ATS-TUD9
take-up device
6"
ATS-BP6-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR6
Strong-Rod
6"
ATS-BP7-3x5.5
bearing plate
CNW 3∕4
coupler nut
CNW 7∕8
coupler nut
ATS-ABR5
anchor bolt
ATS-ABR6
anchor bolt
ATS-ABR7
anchor bolt
CTDS4-3/4
Solid
blocking
(typ.)
ATS-SR7
Strong-Rod
CNW 5∕8
coupler nut
CTDS4-5/8
6"
ATS-N7 nut
ATS-DW5
ATS-SR5
Strong-Rod
Solid
blocking
(typ.)
ATS-SR7
Strong-Rod
ATS-TUD9
take-up device
Solid
blocking
(typ.)
6"
ATS-CTUD77
coupling
take-up device
6"
ATS-N6 nut
ATS-BP5-3x3.5
bearing plate
Solid
blocking
(typ.)
ATS-CTUD75
coupling
take-up device
ATS-IN6 nut
Solid
blocking
(typ.)
6"
ATS-SR5
Strong-Rod
ATS-IN5 nut
ATS-SR5
Strong-Rod
ATS-SR5
Strong-Rod™
6"
6"
CTDS4-7/8
27
Four-Storey Systems
ATS-N6 nut
ATS-N6 nut
ATS-BP6-3x5.5
bearing plate
ATS-BP6-3x5.5
bearing plate
ATS-BP6-3x5.5
bearing plate
ATS-SR6
Strong-Rod™
ATS-SR6
Strong-Rod™
6"
ATS-SR6
Strong-Rod™
6"
ATS-C76
coupler nut
ATS-C76
coupler nut
ATS-C76
coupler nut
ATS-IN7 nut
ATS-IN7 nut
ATS-IN7 nut
ATS-BP7-3x5.5
bearing plate
ATS-BP7-3x5.5
bearing plate
ATS-BP7-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR7
Strong-Rod
6"
ATS-CTUD87
coupling
take-up device
ATS-BP8-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-BP9-3x5.5
bearing plate
ATS-BP7-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-CTUD77
Coupling
take-up device
6"
ATS-N9 nut
ATS-N7 nut
ATS-DW8
ATS-DW9
ATS-DW7
ATS-TUD9
take-up device
ATS-TUD9
take-up device
ATS-TUD9
take-up device
Solid
blocking
(typ.)
ATS-SR8
Strong-Rod
6"
ATS-BP9-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR9
Strong-Rod
6"
ATS-HSC77
coupler nut
ATS-ABR8
anchor bolt
ATS-ABR9
anchor bolt
ATS-ABR7H
anchor bolt
28
Solid
blocking
(typ.)
ATS-SR7H
Strong-Rod
ATS-C99
coupler nut
CTDS4-1 1/8
6"
ATS-BP7-3x5.5
bearing plate
CNW1
coupler nut
CTDS4-1
Solid
blocking
(typ.)
ATS-SR7H
Strong-Rod
ATS-N8 nut
ATS-BP8-3x5.5
bearing plate
6"
ATS-CTUD77
coupling
take-up device
ATS-IN7 nut
ATS-SR9
Strong-Rod
Solid
Blocking
(typ.)
ATS-SR7
Strong-Rod
ATS-IN9 Nut
ATS-CTUD99
coupling
take-up device
6"
ATS-CTUD88
coupling
take-up device
6"
ATS-CTUD97
coupling
take-up device
ATS-IN8
take-up device
ATS-SR8
Strong-Rod
Solid
blocking
(typ.)
ATS-SR7
Strong-Rod
6"
6"
CTDS4-7/8H
ATS-N6 nut
Four-Storey Systems
ATS System
CTDS4-1 1/8H
Plates/Studs
Factored Tensile
Resistance, Tr
4th floor
8' Posts
Incremental
Bearing Resistance
Factored Tensile
Resistance, Tr
3rd floor
2nd floor
8' Posts
S-P-F
kN
85.79
85.79
lbs
19260
19260
kN
78.66
59.53
lbs
17660
13365
kN
164.45
145.32
lbs
36920
32625
Incremental
Bearing Resistance
78.66
59.53
lbs
17660
13365
Factored Tensile
Resistance, Tr
kN
183.54
183.54
lbs
41205
41205
8' Posts
Factored Tensile
Resistance, Tr
8' Posts
ATS-N7 nut
ATS-DW7
ATS-BP10-3x9
bearing plate
ATS-SR7
Strong-Rod™
6"
ATS-HSC77
coupler nut
ATS-IN7 nut
ATS-BP7-3x5.5
bearing plate
Solid
blocking
(typ.)
kN
Incremental
Bearing Resistance
1st floor
D.Fir-L
ATS-SR7H
Strong-Rod
ATS-IN7 nut
ATS-BP7-3x5.5
bearing plate
kN
76.15
57.64
lbs
17095
12940
kN
259.69
241.18
lbs
58300
54145
2x4 framing
—
—
2.Post design is based on the tension capacity of the system. The Designer is responsible for
verifying that posts are capable of resisting all required load combinations.
6"
ATS-CTUD77
coupling
take-up device
Solid
blocking
(typ.)
ATS-SR7H
Strong-Rod
ATS-CTUD97
coupling
take-up device
6"
ATS-N9 nut
ATS-DW9
ATS-TUD9
take-up device
ATS-BP9-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR9H
Strong-Rod
6"
ATS-HSC99
coupler nut
ATS-ABR9H
anchor bolt
CTDS4-1 1/8H
Anchorage-to-concrete and
foundation design by Designer.
29
Five-Storey Systems
ATS System
CTDS5-3/4
Plates/Studs
5th floor
8' Posts
Incremental
Bearing Resistance
Factored Tensile
Resistance, Tr
4th floor
8' Posts
Incremental
Bearing Resistance
Factored Tensile
Resistance, Tr
3rd floor
2nd floor
1st floor
8' Posts
CTDS5-1
S-P-F
D.Fir-L
S-P-F
D.Fir-L
kN
42.45
39.22
42.45
39.22
62.61
60.33
lbs
9530
8805
9530
8805
14055
13545
kN
57.82
57.82
62.61
60.33
78.66
59.53
lbs
12980
12980
14055
13545
17660
13365
kN
57.82
57.82
62.61
62.61
85.79
85.79
lbs
12980
12980
14055
14055
19260
19260
kN
57.82
57.82
62.61
60.33
78.66
59.53
lbs
12980
12980
14055
13545
17660
13365
kN
57.82
57.82
62.61
62.61
85.79
85.79
lbs
12980
12980
14055
14055
19260
19260
Incremental
Bearing Resistance
kN
57.82
57.82
78.66
59.53
66.30
58.62
lbs
12980
12980
17660
13365
14885
13160
Factored Tensile
Resistance, Tr
kN
57.82
57.82
79.98
79.98
104.90
104.90
lbs
12980
12980
17955
17955
23550
23550
8' Posts
Incremental
Bearing Resistance
kN
57.82
57.82
78.66
59.53
66.30
58.62
lbs
12980
12980
17660
13365
14885
13160
Factored Tensile
Resistance, Tr
kN
57.82
57.82
79.98
79.98
104.90
104.90
lbs
12980
12980
17955
17955
23550
23550
8' Posts
3.Applies only to jurisdictions with building code allowance for greater than four storeys.
30
S-P-F
Factored Tensile
Resistance, Tr
CTDS5-7/8
D.Fir-L
Five-Storey Systems
ATS-N5 nut
ATS-N5 nut
ATS-N6 nut
ATS-BP5-3x3.5
bearing plate
ATS-BP5-3x3.5
bearing plate
ATS-BP6-3x5.5
bearing plate
ATS-SR5
Strong-Rod™
ATS-SR6
Strong-Rod™
6"
CNW 3∕4-5∕8
coupler nut
CNW 3∕4-5∕8
coupler nut
ATS-C76
coupler nut
ATS-IN6 nut
ATS-IN6 nut
ATS-IN7 nut
ATS-BP6-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR6
Strong-Rod
6"
ATS-CTUD66
coupling
take-up device
ATS-BP6-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR6
Strong-Rod
ATS-N7 nut
ATS-DW7
ATS-TUD9
take-up device
ATS-TUD9
take-up device
ATS-TUD9
take-up device
ATS-SR6
Strong-Rod
Solid
blocking
(typ.)
ATS-BP6-3x5.5
bearing plate
ATS-SR6
Strong-Rod
6"
ATS-SR7
Strong-Rod
6"
ATS-C76
coupler nut
CNW1-7∕8
coupler nut
ATS-IN6 nut
ATS-IN7 nut
ATS-IN8 nut
Solid
blocking
(typ.)
ATS-SR6
Strong-Rod
6"
ATS-CTUD66
coupling
take-up device
ATS-BP7-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR7
Strong-Rod
ATS-N8 nut
ATS-DW8
ATS-TUD9
take-up device
ATS-TUD9
take-up device
ATS-TUD9
take-up device
ATS-SR6
Strong-Rod
6"
Solid
blocking
(typ.)
ATS-BP7-3x5.5
bearing plate
ATS-SR7
Strong-Rod
Solid
blocking
(typ.)
ATS-BP8-3x5.5
bearing plate
6"
ATS-SR8
Strong-Rod
CNW 3∕4
coupler nut
CNW 7∕8
coupler nut
CNW1
coupler nut
ATS-ABR6
anchor bolt
ATS-ABR7
anchor bolt
ATS-ABR8
anchor bolt
CTDS5-3/4
6"
ATS-CTUD88
coupling
take-up device
ATS-N7 nut
ATS-DW7
Solid
blocking
(typ.)
Solid
blocking
(typ.)
ATS-SR8
Strong-Rod
ATS-N6 nut
ATS-DW6
ATS-BP6-3x5.5
bearing plate
6"
ATS-BP8-3x5.5
bearing plate
6"
ATS-CTUD77
coupling
take-up device
Solid
blocking
(typ.)
ATS-BP7-3x5.5
bearing plate
CNW 3∕4
coupler nut
ATS-BP6-3x5.5
bearing plate
6"
ATS-CTUD77
coupling
take-up device
ATS-N6 nut
ATS-DW6
Solid
blocking
(typ.)
Solid
blocking
(typ.)
ATS-SR7
Strong-Rod
6"
ATS-CTUD66
coupling
take-up device
6"
ATS-BP7-3x5.5
bearing plate
ATS-N6 nut
ATS-DW6
ATS-BP6-3x5.5
bearing plate
ATS-SR5
Strong-Rod™
6"
CTDS5-7/8
6"
CTDS5-1
31
Five-Storey Systems
ATS System
CTDS5-1 1/8
Plates/Studs
5th floor
8' Posts
Incremental
Bearing Resistance
Factored Tensile
Resistance, Tr
4th floor
8' Posts
Incremental
Bearing Resistance
Factored Tensile
Resistance, Tr
3rd floor
2nd floor
1st floor
8' Posts
CTDS5-7/8H
S-P-F
D.Fir-L
CTDS5-1 1/8H
S-P-F
D.Fir-L
kN
78.66
59.53
78.66
59.53
78.66
59.53
lbs
17660
13365
17660
13365
17660
13365
kN
66.30
58.62
78.66
59.53
78.66
59.53
lbs
14885
13160
17660
13365
17660
13365
kN
112.12
112.12
85.79
85.79
157.33
119.06
lbs
25170
25170
19260
19260
35320
26730
kN
66.30
58.62
78.66
59.53
78.66
59.53
lbs
14885
13160
17660
13365
17660
13365
kN
112.12
112.12
164.45
145.32
183.54
178.60
lbs
25170
25170
36920
32625
41205
40095
Incremental
Bearing Resistance
kN
76.15
57.64
78.66
59.53
76.15
57.64
lbs
17095
12940
17660
13365
17095
12940
Factored Tensile
Resistance, Tr
kN
132.07
132.07
165.46
165.46
259.69
236.24
lbs
29650
29650
37145
37145
58300
53035
—
—
8' Posts
Incremental
Bearing Resistance
kN
76.15
57.64
78.66
59.53
76.15
57.64
lbs
17095
12940
17660
13365
17095
12940
Factored Tensile
Resistance, Tr
kN
132.07
132.07
165.46
165.46
284.63
284.63
lbs
29650
29650
37145
37145
63900
63900
—
—
8' Posts
32
S-P-F
Factored Tensile
Resistance, Tr
D.Fir-L
Five-Storey Systems
ATS-N7 nut
ATS-N7 nut
ATS-N7 nut
ATS-BP7-3x5.5
bearing plate
ATS-BP7-3x5.5
bearing plate
ATS-BP7-3x5.5
bearing plate
ATS-SR7
Strong-Rod™
ATS-SR7
Strong-Rod™
6"
CNW1-7∕8
coupler nut
CNW 7∕8
coupler nut
ATS-HSC77
coupler nut
ATS-IN8 nut
ATS-IN7 nut
ATS-IN7 nut
ATS-BP8-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR8
Strong-Rod
6"
ATS-CTUD88
coupling
take-up device
ATS-BP7-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR7
Strong-Rod
ATS-N7 nut
ATS-DW7
ATS-TUD9
take-up device
ATS-TUD9
take-up device
ATS-TUD9
take-up device
ATS-SR8
Strong-Rod
Solid
blocking
(typ.)
ATS-BP7-3x5.5
bearing plate
ATS-SR7H
Strong-Rod
6"
ATS-SR7H
Strong-Rod
6"
ATS-HSC77
coupler nut
ATS-HSC97
coupler nut
ATS-IN9 nut
ATS-IN7 nut
ATS-IN9 nut
Solid
blocking
(typ.)
ATS-SR9
Strong-Rod
6"
ATS-CTUD99
coupling
take-up device
ATS-BP7-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR7H
Strong-Rod
ATS-N9 nut
ATS-DW9
ATS-TUD9
take-up device
ATS-TUD9
take-up device
ATS-TUD9
take-up device
ATS-SR9
Strong-Rod
6"
Solid
blocking
(typ.)
ATS-BP7-3x5.5
bearing plate
ATS-SR7H
Strong-Rod
Solid
blocking
(typ.)
ATS-BP9-3x5.5
bearing plate
6"
ATS-SR9H
Strong-Rod
ATS-C99
coupler nut
ATS-HSC77
coupler nut
ATS-HSC99
coupler nut
ATS-ABR9
anchor bolt
ATS-ABR7H
anchor bolt
ATS-ABR9H
anchor bolt
CTDS5-1 1/8
6"
ATS-CTUD99
coupling
take-up device
ATS-N7 nut
ATS-DW7
Solid
blocking
(typ.)
Solid
blocking
(typ.)
ATS-SR9H
Strong-Rod
ATS-N9 nut
ATS-DW9
ATS-BP9-3x5.5
bearing plate
6"
ATS-BP9-3x5.5
bearing plate
6"
ATS-CTUD77
coupling
take-up device
Solid
blocking
(typ.)
ATS-BP7-3x5.5
bearing plate
ATS-C98
coupler nut
ATS-BP9-3x5.5
bearing plate
6"
ATS-CTUD77
coupling
take-up device
ATS-N7 nut
ATS-DW7
Solid
blocking
(typ.)
Solid
blocking
(typ.)
ATS-SR7H
Strong-Rod
6"
ATS-CTUD77
coupling
take-up device
6"
ATS-BP7-3x5.5
bearing plate
ATS-N8 nut
ATS-DW8
ATS-BP8-3x5.5
bearing plate
ATS-SR7
Strong-Rod™
6"
CTDS5-7/8H
6"
CTDS5-1 1/8H
33
Six-Storey Systems
ATS System
CTDS6-3/4
Plates/Studs
6th floor
8' Posts
Incremental
Bearing Resistance
Factored Tensile
Resistance, Tr
5th floor
8' Posts
Incremental
Bearing Resistance
Factored Tensile
Resistance, Tr
4th floor
3rd floor
2nd floor
1st floor
8' Posts
CTDS6-1
S-P-F
D.Fir-L
S-P-F
D.Fir-L
kN
42.45
39.22
42.45
39.22
62.61
60.33
lbs
9530
8805
9530
8805
14055
13545
kN
42.45
39.22
42.45
39.22
62.61
60.33
lbs
9530
8805
9530
8805
14055
13545
kN
42.45
42.45
42.45
42.45
62.61
62.61
lbs
9530
9530
9530
9530
14055
14055
kN
57.82
57.82
62.61
60.33
78.66
59.53
lbs
12980
12980
14055
13545
17660
13365
kN
57.82
57.82
62.61
62.61
85.79
85.79
lbs
12980
12980
14055
14055
19260
19260
Incremental
Bearing Resistance
kN
57.82
57.82
62.61
60.33
78.66
59.53
lbs
12980
12980
14055
13545
17660
13365
Factored Tensile
Resistance, Tr
kN
57.82
57.82
62.61
62.61
85.79
85.79
lbs
12980
12980
14055
14055
19260
19260
8' Posts
Incremental
Bearing Resistance
kN
57.82
57.82
78.66
59.53
66.30
58.62
lbs
12980
12980
17660
13365
14885
13160
Factored Tensile
Resistance, Tr
kN
57.82
57.82
79.98
79.98
104.90
104.90
lbs
12980
12980
17955
17955
23550
23550
8' Posts
Incremental
Bearing Resistance
kN
57.82
57.82
78.66
59.53
66.30
58.62
lbs
12980
12980
17660
13365
14885
13160
Factored Tensile
Resistance, Tr
kN
57.82
57.82
79.98
79.98
104.90
104.90
lbs
12980
12980
17955
17955
23550
23550
8' Posts
34
S-P-F
Factored Tensile
Resistance, Tr
CTDS6-7/8
D.Fir-L
Six-Storey Systems
ATS-N5 nut
ATS-N5 nut
ATS-N6 nut
ATS-BP5-3x3.5
bearing plate
ATS-BP5-3x3.5
bearing plate
ATS-BP6-3x5.5
bearing plate
ATS-SR5
Strong-Rod™
ATS-SR5
Strong-Rod™
6"
CNW ∕8
coupler nut
CNW ∕8
coupler nut
5
3
ATS-IN5 nut
ATS-IN5 nut
ATS-IN6 nut
ATS-BP5-3x3.5
bearing plate
ATS-BP5-3x3.5
bearing plate
ATS-BP6-3x5.5
bearing plate
Solid
blocking
(typ.)
6"
Solid
blocking
(typ.)
ATS-SR5
Strong-Rod
6"
ATS-CTUD65
coupling
take-up device
ATS-CTUD76
coupling
take-up device
ATS-IN6 nut
ATS-IN6 nut
ATS-IN7 nut
Solid
blocking
(typ.)
ATS-SR6
Strong-Rod
6"
ATS-BP6-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR6
Strong-Rod
6"
ATS-CTUD77
coupling
take-up device
ATS-N6 nut
ATS-DW6
ATS-N6 nut
ATS-DW6
ATS-N7 nut
ATS-DW7
ATS-BP6-3x5.5
bearing plate
ATS-SR6
Strong-Rod
ATS-TUD9
take-up device
Solid
blocking
(typ.)
ATS-BP6-3x5.5
bearing plate
ATS-SR6
Strong-Rod
6"
ATS-SR7
Strong-Rod
6"
CNW1-7∕8
coupler nut
ATS-IN6 nut
ATS-IN7 nut
ATS-IN8 nut
ATS-SR6
Strong-Rod
6"
ATS-CTUD66
coupling
take-up device
ATS-BP7-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR7
Strong-Rod
6"
ATS-CTUD77
coupling
take-up device
ATS-TUD9
take-up device
ATS-TUD9
take-up device
ATS-TUD9
take-up device
ATS-SR6
Strong-Rod
6"
Solid
blocking
(typ.)
ATS-SR7
Strong-Rod
6"
ATS-SR8
Strong-Rod
CNW 7∕8
coupler nut
CNW1
coupler nut
ATS-ABR6
anchor bolt
ATS-ABR7
anchor bolt
ATS-ABR8
anchor bolt
CTDS6-7/8
Solid
blocking
(typ.)
ATS-BP8-3x5.5
bearing plate
CNW 3∕4
coupler nut
CTDS6-3/4
6"
ATS-CTUD88
coupling
take-up device
ATS-N8 nut
ATS-DW8
ATS-BP7-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR8
Strong-Rod
ATS-N7 nut
ATS-DW7
Solid
blocking
(typ.)
6"
ATS-BP8-3x5.5
bearing plate
ATS-N6 nut
ATS-DW6
ATS-BP6-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-BP7-3x5.5
bearing plate
ATS-C76
coupler nut
Solid
blocking
(typ.)
6"
ATS-TUD9
take-up device
CNW 3∕4
coupler nut
ATS-BP6-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR7
Strong-Rod
ATS-CTUD66
coupling
take-up device
Solid
blocking
(typ.)
6"
ATS-BP7-3x5.5
bearing plate
ATS-CTUD66
coupling
take-up device
ATS-TUD9
take-up device
Solid
blocking
(typ.)
ATS-SR6
Strong-Rod
ATS-CTUD65
coupling
take-up device
ATS-BP6-3x5.5
bearing plate
6"
CNW ∕4
coupler nut
5
ATS-SR5
Strong-Rod
ATS-SR6
Strong-Rod™
6"
6"
CTDS6-1
35
Six-Storey Systems
ATS System
CTDS6-1 1/8
Plates/Studs
6th floor
5th floor
4th floor
8' Posts
D.Fir-L
S-P-F
D.Fir-L
59.53
78.66
59.53
78.66
59.53
lbs
17660
13365
17660
13365
17660
13365
78.66
59.53
78.66
59.53
78.66
59.53
17660
13365
17660
13365
17660
13365
Factored Tensile
Resistance, Tr
kN
85.79
85 79
85.79
85.79
85.79
85.79
lbs
19260
19260
19260
19260
19260
19260
8' Posts
Incremental
Bearing Resistance
kN
66.30
58.62
78.66
59.53
78.66
59.53
lbs
14885
13160
17660
13365
17660
13365
Factored Tensile
Resistance, Tr
kN
112.12
112.12
164.45
145.32
164.45
145.32
lbs
25170
25170
36920
32625
36920
32625
8' Posts
8' Posts
Factored Tensile
Resistance, Tr
8' Posts
kN
66.30
58.62
78.66
59.53
78.66
59.53
lbs
14885
13160
17660
13365
17660
13365
kN
112.12
112.12
165.46
165.46
183.54
183.54
lbs
25170
25170
37145
37145
41205
41205
—
—
kN
76.15
57.64
78.66
59.53
76.15
57.64
lbs
17095
12940
17660
13365
17095
12940
kN
132.07
132.07
165.46
165.46
259.69
241.18
lbs
29650
29650
37145
37145
58300
54145
—
—
2x4 framing (4) - 2x4 ea. side (4) - 2x4 ea. side (4) - 2x4 ea. side (5) - 2x4 eac. side
Incremental
Bearing Resistance
kN
76.15
57.64
78.66
59.53
76.15
57.64
lbs
17095
12940
17660
13365
17095
12940
Factored Tensile
Resistance, Tr
kN
132.07
132.07
165.46
165.46
284.63
284.63
lbs
29650
29650
37145
37145
63900
63900
—
—
8' Posts
36
S-P-F
kN
Incremental
Bearing Resistance
1st floor
S-P-F
78.66
lbs
Factored Tensile
Resistance, Tr
2nd floor
D.Fir-L
kN
Incremental
Bearing Resistance
Incremental
Bearing Resistance
3rd floor
CTDS6-1 1/8H
Factored Tensile
Resistance, Tr
CTDS6-7/8H
Six-Storey Systems
ATS-N7 nut
ATS-N7 nut
ATS-N7 nut
ATS-BP7-3x5.5
bearing plate
ATS-BP7-3x5.5
bearing plate
ATS-BP7-3x5.5
bearing plate
ATS-SR7
Strong-Rod™
ATS-SR7
Strong-Rod™
6"
CNW ∕8
coupler nut
CNW ∕8
coupler nut
7
7
ATS-IN7 nut
ATS-IN7 nut
ATS-IN7 nut
ATS-BP7-3x5.5
bearing plate
ATS-BP7-3x5.5
bearing plate
ATS-BP7-3x5.5
bearing plate
Solid
blocking
(typ.)
6"
Solid
blocking
(typ.)
ATS-SR7
Strong-Rod
6"
ATS-CTUD77
coupling
take-up device
ATS-CTUD77
coupling
take-up device
ATS-IN8 nut
ATS-IN7 nut
ATS-IN7 nut
Solid
blocking
(typ.)
ATS-SR8
Strong-Rod
6"
ATS-BP7-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR7H
Strong-Rod
6"
ATS-CTUD77
coupling
take-up device
ATS-N8 nut
ATS-DW8
ATS-N7 nut
ATS-DW7
ATS-N7 nut
ATS-DW7
ATS-BP8-3x5.5
bearing plate
ATS-SR8
Strong-Rod
ATS-TUD9
take-up device
Solid
blocking
(typ.)
ATS-BP7-3x5.5
bearing plate
ATS-SR7H
Strong-Rod
6"
ATS-SR7H
Strong-Rod
6"
ATS-HSC97
coupler nut
ATS-IN9 nut
ATS-IN7 nut
ATS-IN9 nut
ATS-SR9
Strong-Rod
6"
ATS-CTUD99
coupling
take-up device
ATS-BP7-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR7H
Strong-Rod
6"
ATS-CTUD77
coupling
take-up device
ATS-TUD9
take-up device
ATS-TUD9
take-up device
ATS-TUD9
take-up device
ATS-SR9
Strong-Rod
6"
Solid
blocking
(typ.)
ATS-SR7H
Strong-Rod
6"
ATS-SR9H
Strong-Rod
ATS-HSC77
coupler nut
ATS-HSC99
coupler nut
ATS-ABR9
anchor bolt
ATS-ABR7H
anchor bolt
ATS-ABR9H
anchor bolt
CTDS6-7/8H
Solid
blocking
(typ.)
ATS-BP9-3x5.5
bearing plate
ATS-C99
coupler nut
CTDS6-1 1/8
6"
ATS-CTUD99
coupling
take-up device
ATS-N9 nut
ATS-DW9
ATS-BP7-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR9H
Strong-Rod
ATS-N7 nut
ATS-DW7
Solid
blocking
(typ.)
6"
ATS-BP9-3x5.5
bearing plate
ATS-N9 nut
ATS-DW9
ATS-BP9-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-BP7-3x5.5
bearing plate
ATS-HSC77
coupler nut
Solid
blocking
(typ.)
6"
ATS-TUD9
take-up device
ATS-C98
coupler nut
ATS-BP9-3x5.5
bearing plate
Solid
blocking
(typ.)
ATS-SR7H
Strong-Rod
ATS-CTUD77
coupling
take-up device
Solid
blocking
(typ.)
6"
ATS-BP7-3x5.5
bearing plate
ATS-CTUD88
Coupling
take-up device
ATS-TUD9
take-up device
Solid
blocking
(typ.)
ATS-SR7
Strong-Rod
ATS-CTUD87
coupling
take-up device
ATS-BP8-3x5.5
bearing plate
6"
CNW ∕8
coupler nut
7
ATS-SR7
Strong-Rod
ATS-SR7
Strong-Rod™
6"
6"
CTDS6-1 1/8H
37
Alternate Top-Storey Installation
Factored Tensile Resistance
Strap
Model
No.
2-CS16
Ga.
16
Width
(in)
Minimum End
Studs
Length
Required (in)
1 1⁄4
2x
15
Cut Length
or Actual
Length
(in)
Clear Span + 30
Fasteners
per Strap
24-8d
2-MSTC40
16
3
2-2x
12 1⁄8
40 1⁄4
28-10d
2-MSTC52
16
3
2-2x
18 1⁄8
52 1⁄4
44-10d
21
2-CMSTC16
16
3
40
2-CMST14
14
3
Clear Span + 42
48-10d
2-2x
2-2x
32
Clear Span + 80
Clear Span + 64
48-10d
66-10d
D.Fir-L
S-P-F
(KD=1.15)
(KD=1.15)
lbs
lbs
kN
kN
4610
4610
20.51
20.51
7955
7270
35.39
32.34
12500
11430
55.61
50.84
11690
11690
52.00
52.00
11690
11690
52.00
52.00
16860
16860
75.00
75.00
1.Factored resistances shown are the lesser of the steel tensile strength (Tr) or the lateral nail values (Nr) for two straps.
2.Use half of the required nails in each member being connected to achieve the listed capacities.
3.See current Wood Construction Connectors – Canadian Limit States Design catalogue for other strap configurations.
4.Values shown are for short term load durations (KD = 1.15) only.
CS16
End
length
CMST14
16" max.
Cut
length
2 - 2x studs
(minimum)
Clear
span
(typ)
CMSTC16
MSTC
straps
End
length
Provide minimum
2 7∕16" end distance
for CS and CMST
2x stud
(minimum)
Alternate Strap Details
MSTC40 and MSTC52
38
2x stud
(minimum)
Installation Details
RUN TERMINATION DETAILS
King studs with edge
nailing per Designer
Holes in plates = rod diameter + ¹⁄₄".
ATS TUD or ATUD
ATS Bearing Plate
52" min. height
from floor
Bearing plate at
double top plate.
No splice in the
top plate permitted
within 8" of the rod.
6"
6" header with
field nailing
Nails or Simpson Strong-Tie®
SDS screws from king studs to
compression studs
Compression posts
with field nailing
Top Plate Detail
Bridge Block Detail
FLOOR SYSTEM BLOCKING DETAILS
1˚ of Storey Height
Offset Per Floor
6"
Compression
Member
Oversized hole
in blocking = rod
diameter + ¹⁄₄".
Sheathing
Solid Blocking
Solid blocking
full length below
compression posts.
Sheathing
6"
Alternate Blocking Detail
Blocking Detail
3" Max.
Solid
blocking
below
compression
members
ADDITIONAL DETAILS
6"
Compression
Posts
Simpson Strong-Tie®
SSP or DSP
Oversized hole =
rod diameter + ¹⁄₄".
Compression
Posts per Designer
ATS-IN Nut
Sheathing
Sill Plate
1˚ of Storey
Height Offset
Per Floor
ATS BP10
Sheathing
Solid Beam
by Designer
ATS Bearing Plate
Isolator Nut
Wood Beam Detail
Studs over ATS-BP10
Bearing Plates
(where required by Designer)
Allowable Rod Offset
From Centerline
1° of storey height
maximum per floor
39
Installation Details (cont.)
SHEARWALL EDGE NAILING
Edge nailing and compression members size shall be specified by the Designer.
CTDS Systems with
1 compression member on either side of
the ATS Strong-Rod™ threaded rod.
CTDS Systems with 2 or less
compression members on either side of
the ATS Strong-Rod threaded rod.
Strong-Rod
Nailing to each compression
member shall be specified
edge nailing, by the Designer,
multiplied by two (2) but not
to exceed 12" on center.
CTDS Systems with 3 or more
compression members on either
side of the ATS Strong-Rod threaded rod.
Strong-Rod
Nailing to each compression
member shall be the specified edge
nailing, by the Designer, multiplied
by the total number of studs but
not to exceed 12" on center.
Nailing shall be specified by the
Designer, but not to exceed a
maximum of 12" on center to
each compression member.
Compression Members: General Notes
1. Studs, posts and blocking details are specified by the Designer
and are not shipped with the Anchor Tiedown System.
2. With the Anchor Tiedown System, it is not necessary to
design the lumber in tension. See the Compression Member
Selection Tables on page 40 for compression member
factored resistances and additional design assumptions.
3. The compression capacity of the lumber listed in the
tables is based on CSA O86-09 for the plate heights, wall
plate and compression member species specified.
4. Wall plates and stud species are assumed to be the same as
specified in the Compression Member Selection Tables (unless
noted otherwise). The Designer must review the compression
members for variation of species, or unsupported heights other
than those listed in the tables.
40
5. Factored perpendicular to grain resistances assume φfcp = 812
psi for D.Fir-L and 615 psi for S-P-F. Values shown in the tables
have been multiplied by KD, KB and KZCP where applicable
6.Effective length of lumber (le) equal to plate height,
less (3) 2x wall plates (i.e. 4 1⁄2").
7. Capacities shown, assume Ke = 1.0.
Example: (4) total compression members: 2" o.c. edge nailing x 4 = 8" o.c. nailing at each compression member.
Lumber Tables
Compression Member Selection
Column Perpendicular and Parallel to Grain Factored Resistances for D.Fir-L (Multiple 2x Members)
Lumber
Framing (each side of
ATS Rod)
2x4
WALL
2x6
WALL
Parallel to Grain Resistance, Pr lbs (kN)
Perp. to
Grain, Qr
Stud Height, ft [m]
lbs
kN
8
[2.44]
9
[2.74]
10
[3.05]
11
[3.35]
12
1 - 2x4
14056
62.61
9478
42.22
7386
32.90
5799
25.83
4596
20.47
3680
[3.66]
16.39
2 - 2x4
24742
110.21
18955
84.43
14774
65.81
11595
51.65
9189
40.93
7361
32.79
3 - 2x4
33738
150.28
28433
126.65
22160
98.71
17394
77.48
13784
61.40
11041
49.18
4 - 2x4
44985
200.38
37911
168.87
29549
131.62
23191
103.30
18378
81.86
14723
65.58
5 - 2x4
56231
250.47
47387
211.08
26935
164.52
28990
129.13
22973
102.33
18402
81.97
6 - 2x4
67476
300.56
56866
253.30
44323
197.43
23786
154.95
27566
122.79
22082
98.36
1 - 2x6
22113
98.50
27890
124.23
24378
108.59
21123
94.09
18196
81.05
15623
69.59
2 - 2x6
38919
173.36
55779
248.46
48757
217.18
42246
188.18
36391
162.10
31246
139.18
3 - 2x6
53072
236.40
83669
372.69
73135
325.77
63370
282.27
54587
243.15
46869
208.77
4 - 2x6
70762
315.20
111568
496.96
97514
434.36
84493
376.36
72783
324.20
62492
278.36
5 - 2x6
88453
394.00
139448
621.15
121892
542.95
105616
470.45
90979
405.25
78117
347.96
6 - 2x6
106144
472.80
167338
745.38
146271
651.54
126739
564.54
109174
486.30
93740
417.55
[3.66]
1. Lumber based on D.Fir-L No.1/No.2 grade. See GENERAL NOTES for additional information.
Column Perpendicular and Parallel to Grain Factored Resistances for S-P-F (Multiple 2x Members)
Lumber
Framing (each side of
ATS Rod)
2x4
WALL
2x6
WALL
Parallel to Grain Resistance, Pr lbs (kN)
Perp. to
Grain, Qr
Stud Height, ft [m]
lbs
kN
8
[2.44]
9
[2.74]
10
[3.05]
11
[3.35]
12
1 - 2x4
10644
47.41
8421
37.51
6623
29.50
5235
23.32
4171
18.58
3356
14.95
2 - 2x4
18732
83.44
16842
75.02
13246
59.00
10471
46.64
8342
37.16
6710
29.89
3 - 2x4
25546
113.79
25263
112.53
19870
88.51
15706
69.96
12514
55.74
10067
44.84
4 - 2x4
34061
151.72
33684
150.04
26493
118.01
20941
93.28
16685
74.32
13423
59.79
5 - 2x4
42574
189.64
42105
187.55
33116
147.51
26177
116.60
20856
92.90
16779
74.74
6 - 2x4
51089
227.57
50528
225.07
39739
177.01
31410
139.91
25027
111.48
20133
89.68
1 - 2x6
16743
74.58
23772
105.89
20973
93.42
18337
81.68
15928
70.95
13780
61.38
2 - 2x6
29468
131.26
47545
211.78
41946
186.84
36672
163.35
31857
141.90
27560
122.76
3 - 2x6
40183
178.99
71317
317.67
62918
280.26
55009
245.03
47783
212.84
41339
184.14
4 - 2x6
53577
238.65
95089
423.56
83891
373.68
73344
326.70
63711
283.79
55119
245.52
5 - 2x6
66971
298.31
118862
529.45
104864
467.10
91681
408.38
79639
354.74
68899
306.90
6 - 2x6
80367
357.98
142634
635.34
125837
560.52
110018
490.06
95567
425.69
82679
368.28
1. Lumber based on S-P-F No.1/No.2 grade. See GENERAL NOTES for additional information.
GENERAL NOTES
• Bearing loads are perpendicular to grain values and include bearing factor KB and size factor KZCP .
• Perpendicular and parallel to grain values include KD = 1.15 load increase.
• Calculations based on Ke = 1.0 for parallel to grain resistance in depth direction of stud.
• Calculations assume KH = 1.10 with wall sheathing providing lateral restraint against buckling in 38mm direction of stud.
• Fastening of studs to wall sheathing and wall sheathing specifications to be provided by Design Professional, not by Simpson Strong‑Tie Company Inc.
41
NOTES
42
NOTES
43
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Wood Construction Connectors
Strong Frame™ Ordinary Moment Frame
Anchoring and Fastening Systems for
Concrete and Masonry
Deck Framing Connection Guide
Includes specifications and installation instructions on
wood-to-wood and wood-to-concrete structural connectors. Includes load tables and material specifications.
Includes application information, specifications and
load values for adhesive and mechanical anchors,
gas and P.A.T. fastening and carbide drill bits. A binder
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Provides complete information on the Strong Frame
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Helps deck builders, inspectors and do-it-yourselfers
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Discusses the critical elements of high wind-resistant
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information for construction in high-wind areas. This piece Illustrates the requirements surrounding the repair and
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are cross-referenced with specific code sections.
Extensive drawings make this an easy-to-use tool for
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©2011 Simpson Strong-Tie Company Inc. C-aTSCaN11 2/11 exp. 12/31/15

C-ATSCAN11

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