656

Transcription

656

Section
11
Drywall, Metal Framing, and Plaster
Contents
11.0.0
11.0.1
11.0.2
11.0.3
11.0.4
11.0.5
11.1.0
11.1.1
11.1.2
11.1.3
11.1.4
11.1.5
11.1.6
11.1.7
11.1.8
11.1.9
11.1.10
11.1.11
11.2.0
11.3.0
11.4.0
11.5.0
11.6.0
Drywall systems
Non-load-bearing partitions
Load-bearing partitions
High-performance sound control
Wall furring (partition details)
Non-load-bearing ceilings
Partition construction details (illustrated)
Control joint detail at door
Two-hour rated control joint detail
Rated drywall ceilings
Rated shaftwalls (to structure
above)
Rated shaftwall (to structural steel
beam)
Rated shaftwall adjacent to beam
Two-hour wall perpendicular to
metal deck flutes
One-hour deflection track perpendicular to flutes
Two-hour horizontal duct protection
Details at elevator entrances
Adjacent electrical box installation
Plumbing fixture attachment and
electric outlet installation
Tub and shower details—singlelayer panels
Wall control joint details (illustrated)
Typical bath tub and swimming pool
wall details
Soffit framing specifications
11.7.0
11.8.0
11.9.0
11.10.0
11.10.1
11.10.2
11.10.3
11.11.0
11.12.0
11.12.1
11.13.0
11.14.0
11.15.0
11.16.0
11.17.0
11.18.0
11.19.0
11.20.0
11.21.0
Shelf-wall specifications and illustrations
Chase-wall specifications and illustrations
Resilient channel partition specifications
Tall wall specifications and limiting
heights
L over 120/240/360 explained
Structural stud specifications
Fire-rated assemblies, one to three
hour
High-performance
sound-control
construction (illustrated)
Curtain wall construction (illustrated)
Typical curtain-wall limiting-height
specifications
Wind load tables—height limitations
(12" on center)
(16" on center)
(24" on center)
Axial load tables—5 psf wind load
Weld and fastener tables
Shaftwall and stairwall structural
properties
647
648
Section 11
11.22.0
11.23.0
11.23.1
11.23.2
Area separation walls—fire and
sound test references
Plaster systems
Comparing conventional plaster, veneer plaster, and drywall systems
Lath and plaster installation procedures
11.23.3
11.24.0
11.25.0
Lath, framing, and furring accessories
Five levels of drywall-taping systems
Gypsum drywall—Quality Control
checklist
649
11.0.0 Drywall Systems
Steel or wood studs, faced with gypsum panels (regular, fire rated or vinyl faced) have dominated the
construction industry, representing the most cost-effective light weight, and fire resistant means of
creating interior walls. Specialty products, such as 1⁄2-inch (12 mm) thick cement board, sometimes
referred to as Wonder board and exterior-grade gypsum sheathing panels, along with the development of heavier-gauge structural metal studs for curtain wall construction, has expanded the number of applications to which these products can be used.
650
Section 11
11.0.1 Non-Load-Bearing Partitions
(By permission from the United States Gypsum Corporation, Chicago, Illinois.)
11.0.1 Non-Load-Bearing Partitions—Continued
651
652
Section 11
11.0.2 Load-Bearing Partitions
11.0.3 High-Performance Sound Control
653
654
Section 11
11.0.4 Wall Furring (Partition Details)
11.0.5 Non-Load-Bearing Ceilings
655
656
Section 11
11.1.0 Partition Construction Details (Illustrated)
11.1.1 Control Joint Detail at Door
(By permission from the National Gypsum Company, Charlotte, North Carolina.)
657
658
Section 11
11.1.2 Two-Hour Rated Control Joint Detail
11.1.3 Rated Drywall Ceilings
659
660
Section 11
11.1.4 Rated Shaftwalls (To Structure Above)
11.1.5 Rated Shaftwall (To Structural Steel Beam)
661
662
Section 11
11.1.6 Rated Shaftwall Adjacent To Beam
11.1.7 Two-Hour Wall Perpendicular To Metal Deck Flutes
663
664
Section 11
11.1.8 One-Hour Deflection Track Perpendicular To Flutes
11.1.9 Two-Hour Horizontal Duct Protection
665
666
Section 11
11.1.10 Details at Elevator Entrances
11.1.11 Adjacent Electrical Box Installation
667
668
Section 11
11.2.0 Plumbing Fixture Attachment and Electric Outlet Installation
11.3.0 Tub and Shower Details—Single-Layer Panels
11.4.0 Wall Control Joint Details (Illustrated)
669
670
Section 11
11.5.0 Typical Bath Tub and Swimming Pool Wall Details
671
11.6.0 Soffit Framing Specifications
This assembly consists of galvanized steel channel runners and studs faced with Sheetrock brand
Gypsum Panels, screw attached. It is a lightweight, fast and economical method of filling over cabinets or lockers and of housing overhead ducts, pipes or conduits. The braced system permits constructing soffits with depths of 48" (vertically) and widths to 72" (horizontally). The unbraced system is for soffits up to 24" 24".
Maximum Width and Depth Dimensions(1)
Gypsum board
thickness(2)
in.
Steel stud
size
mm
in.
⁄2
12.7
13⁄8
⁄2
12.7
21⁄2, 31⁄8
⁄8
15.9
1 ⁄8
⁄8
15.9
2 ⁄2, 3 ⁄8
1
1
5
5
3
1
1
mm
Maximum
width
Maximum depth for
max. width shown
in.
mm
in.
mm
41.3
60
1500
48
1200
63.5, 92.1
72
1800
36
900
41.3
60
1500
30
800
63.5, 92.1
72
1800
18
500
(1) The construction is not designed to support loads other than its own dead
weight and should not be used where it may be subjected to excessive abuse.
(2) The double-layer system and 1⁄8" thick gypsum panels are not recommended
for this construction.
11.7.0 Shelf-Wall Specifications and Illustrations
This system provides load-carrying walls for shelving in stores, offices, schools and other applications. Incorporating simple, quickly erected, economical steel stud components with Garcy shelf
brackets, standards and accessories, the assembly offers advantages of steel stud-drywall construction plus structural strength to support shelving and merchandise.
In this assembly, 35⁄8" steel studs spaced no more than 24" o.c. are securely fastened to floor and
ceiling runners and surfaced with either single or double-layer Sheetrock brand Gypsum Panels. Slotted standards are screw-attached through gypsum board to studs or steel reinforcing inserted between layers.
(By permission from the United States Gypsum Corporation, Chicago,
Illinois.)
672
Section 11
11.8.0 Chase-Wall Specifications and Illustrations
11.9.0 Resilient Channel Partition Specifications
673
674
Section 11
11.10.0 Tall Wall Specifications and Limiting Heights
Partitions exceeding 30' in height are considered tall. When these taller than normal partition heights
are required, consideration must be given to length restrictions for manufacturing and shipping steel
studs, scaffolding, stud placement, etc.
Use double structural studs back-to-back 24" o.c. The studs should be the maximum practical
length so that the splice of one stud in each pair will occur at outer 1⁄3 of the span. The splice of the
other stud will occur at the opposite end. Attach studs back to back with screws approximately 4'
o.c. Attach each stud flange to top and bottom runner with 1⁄2" Type S-12 screws so that each pair of
studs will have four screw attachments at each end. Attach 11⁄2" 20 ga. V-bracing to stud flanges on
each side assembly 12' o.c. for stud alignment and lateral bracing.
For 5 psf wind load, 20 ga. runner track is recommended. The fasteners should have a capacity of
300 lb. in single shear and bearing. For 10 psf wind load, 18 ga. runner track attached with fasteners
with 400 lb. single shear and bearing is recommended.
675
11.10.1 L over 120/240/360 Explained
Many of the tables included in this section make reference to L/120, L/240, and L/360. For those unfamiliar with these terms, the following explanation is of assistance in understanding the deflection
specification included in these tables. The established rule is that a member should not deflect more
than 1/360th of the length of its span, when the span is expressed in inches. To convert inches to centimeters, multiply by 2.54. L represents the length of the span, specifically, in the case of L/360, a 30foot (9.144 meter) beam, and this beam should not deflect more than one inch (2.54 centimeters).
If the criteria is L/240, then this 240-inch (609.6 cm), 20-foot (6.096 meter) beam shall not deflect
more than one inch (2.54 cm).
11.10.2 Structural Stud Specifications
676
11.10.3 Fire-rated Assemblies—One to Three Hour
(By permission from Dale/Incor division of Dale Industries, Dearborn, Michigan.)
677

656

Transcription

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