Segmental Bridge Construction - Florida Transportation Builders

Transcription

Segmental Bridge Construction - Florida Transportation Builders
Structures
Design
Plans
Segmental Bridge Construction
g
g Review Groupp
Segmental Bridges –
Segmental
Bridges It’s a It’s a
Construction Technique with Design Implications
2010 FDOT/FTBA
Construction Conference
February 23-24
Orlando, Florida
Structures
Design
Plans Review Speakers
Group
p
Presentation Speakers
Presentation
Brian Blanchard P E
Brian Blanchard, P.E.
Florida Department of Transportation
Enrique Espino P E
Enrique Espino, P.E.
Condotte America, Inc.
Jim Schneiderman, P.E.
PCL Civil Constructors, Inc.
R. Craig Finley, Jr., P.E.
Finley Engineering Group, Inc.
y g
g
p,
Structures
Design
February 23, 2010
FDOT/FTBA
Construction Conference
g
Plans Agenda
Review
Group
p
• Florida Department of Transportation’s Perspective, Brian Blanchard, P.E.,
Perspective, Brian Blanchard, P.E., Florida Department of Transportation
• Contractor’s Perspective
Enrique Espino, P.E., Condotte
d
America, Inc.
Jim Schneiderman, P.E., PCL Civil Constructors
• Design and Construction Engineers
Design and Construction Engineers’ Perspective
R. Craig Finley, Jr., P.E.,
R. Craig Finley, Jr., P.E., Finley Engineering Group, Inc.
• Future Perspective, Enrique Espino, P.E., Condotte America, Inc.
• Round Table Q & A
FDOT Structures
Perspective
Design
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
Roosevelt Bridge
Segmental Bridges – It’s a Construction Technique with
Construction Technique with Design Implications
February 23, 2010
FDOT/FTBA
Construction
Conference
Brian Blanchard P.E.
Chief Engineer
Florida Department
p
of
Transportation
From the Florida Department of Transportation’s Perspective ’
FDOT Structures
Perspective
Design
Skyway Bridge
February 23, 2010
FDOT/FTBA
Construction
Conference
Brian Blanchard P.E.
Chief Engineer
Florida Department
p
of
Transportation
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
From the Florida Department of From
the Florida Department of
Transportation’s Perspective
‰ History of Segmental Bridges in Florida
‰ FDOT Policies and Procedures
FDOT Policies and Procedures
‰ Experience and Future Treads FDOT Structures
Perspective
Design
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
Royal Park Bridge
History of Segmental Bridges in Florida
February 23, 2010
FDOT/FTBA
Construction
Conference
Brian Blanchard P.E.
Chief Engineer
Florida Department
p
of
Transportation
FDOT Structures
Perspective
Design
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
1982
Span-by-span
Balanced Cantilever
All dates given are completion dates
hannel
Niles Ch
1983
1984
Ram
mp I
Over I-75
1981
Seven M
Mile
Channeel 5
Long K
Key
Bridge
History of Segmental Bridges in Florida
– The Early Years
FDOT Structures
Perspective
Design
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
History of Segmental Bridges in Florida
– The Early Years
Long Key Bridge
id
Channel 5
Niles Channel
Seven Mile
All dates given
g ve are
a e completion
co p et o dates
I-595/I--75
((5 Bridgges)
1986
I--75/SR 8826
((5 Bridgges)
1985
1987
1988
I-5595/US 4441
((2 Bridgges)
Span-by-span
Balanced Cantilever
I-595/I--75
((6 Bridgges)
- The Early Years (cont.)
Sk
kyway
Ap
pproach
hes
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
Ft. Lauderdaale
Airpoort
(44 Bridgees)
FDOT Structures
Perspective
Design
FDOT Structures
Perspective
Design
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
Longg Key
y Bridge
g
First application of Precast Span-byspan Bridge Construction in the U.S.
1981
FDOT Structures
Perspective
Design
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
Seven-Mile Bridge
First Application of an
Overhead Gantryy in Florida
1982
FDOT Structures
Perspective
Design
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
Ramp I Bridge
First application of
Precast Balanced
Cantilever Construction
in Florida
1984
FDOT Structures
Perspective
Design
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
- Other Firsts
First Demolition of Existing Segmental Bridge in the North
America.
Fort Lauderdale-Hollywood
International Airport expansion
required
q
the removal of three pprecast
segmental concrete bridges.
How did we demolish segmental
concrete bridges built by the balancedcantilever method? By reversing the
way the
h segments were installed.
i
ll d
2002
FDOT Structures
Perspective
Design
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
- Other Firsts
I-75/ SR 826 Ramp
p A -First Segmental
g
Bridge
g
Widening in U.S. Mainland
2004
FDOT Structures
Perspective
Design
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
12
FDOT Segmental
g
Bridges
g Constructed by
y Year
10
8
6
4
2
Current Number of Segmental Bridges – 68
(3 have been removed at Ft. Lauderdale Airport)
2006
2002
2003
2004
2005
1998
1999
2000
2001
1994
1995
1996
1997
1990
1991
1992
1993
1985
1986
1987
1988
1989
1981
1982
1983
1984
0
FDOT Structures
Perspective
Design
Acosta Bridge
February 23, 2010
FDOT/FTBA
Construction
Conference
Brian Blanchard P.E.
Chief Engineer
Florida Department
p
of
Transportation
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
FDOT Policies and Procedures
FDOT Structures
Perspective
Design
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
FDOT Policies
In Response to PT Corrosion Issues
February 23, 2010
FDOT/FTBA
Construction
Conference
Brian Blanchard P.E.
Chief Engineer
Florida Department
p
of
Transportation
Advanced Corrosion of Strands within Niles Channel Anchorage
FDOT Structures
Perspective
Design
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
FDOT Bridges w/ Grout Problems
Niles Channel Bridge
6 Bridges at I‐75 & I‐595
(Voids in Tendons)
1996 Inspection
February 23, 2010
FDOT/FTBA
Construction
Conference
Brian Blanchard P.E.
Chief Engineer
Florida Department
p
of
Transportation
Niles Channel
(Failed Tendon)
(Failed Tendon)
1999 Inspection
FDOT Structures
Perspective
Design
Skyway Bridge
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
FDOT Bridges w/ Grout Problems (cont.)
Mid‐bay (Spans 28 and 57 (
2‐ Failed Tendons)
2000 Inspection
February 23, 2010
FDOT/FTBA
Construction
Conference
Skyway Approach (Failed
Tendon Pier 133 N)
Tendon Pier 133 N)
2000 Inspection
Brian Blanchard P.E.
Chief Engineer
Florida Department
p
of
Transportation
FDOT Structures
Perspective
Design
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
New Directions for Florida Post-Tensioned Bridges
Corven Engineering,
g
g, Inc.
February 15, 2002
February 23, 2010
FDOT/FTBA
Construction
Conference
Brian Blanchard P.E.
Chief Engineer
Florida Department
p
of
Transportation
FDOT Structures
Perspective
Design
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
2Policyy Revisions
‰ Specify Minimum Layers of Protection
Seabreeze Bridge
‰ Develop Anchorage Protection Standard Details
and QPL Pour-back Materials
‰ Develop P.T. Redundancy Requirements
‰ Refine
R fi G
Grouting
ti Procedures
P
d
February 23, 2010
FDOT/FTBA
Construction
Conference
Brian Blanchard P.E.
Chief Engineer
Florida Department
p
of
Transportation
•
Pre-approved P.T. Systems
•
Qualified Grouting Personnel/ Inspectors
•
Specify Low-Point-Up Grouting
•
Specify Non-bleed QPL Bagged Grouts
•
Specify Inspection Access Points
FDOT Structures
Perspective
Design
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
Dodge Island Bridge
Experience and Future Trends
February 23, 2010
FDOT/FTBA
Construction
Conference
Brian Blanchard P.E.
Chief Engineer
Florida Department
p
of
Transportation
FDOT Structures
Perspective
Design
Hathaway Bridge
February 23, 2010
FDOT/FTBA
Construction
Conference
Brian Blanchard P.E.
Chief Engineer
Florida Department
p
of
Transportation
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
Experience and Future Trends –
‰ Segmental top-down construction techniques
are cost effective on large waterway projects
where insurance and labor rates are
governed by time working from barges.
‰ Larger projects generally make segmental
construction more cost effective due to the
casting yard setup cost being spread over
more segmental units and when the amount
g
of work is sufficient to overcome learningcurve inefficiencies.
FDOT Structures
Perspective
Design
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
Experience and Future Trends (cont.) –
‰ Segmental alternatives have been
Royal Park Bridge
competitive
p
against
g
steel box options
p
where
the number of segmental units is sufficient
(greater than 600-700 units).
(g
)
February 23, 2010
FDOT/FTBA
Construction
Conference
Brian Blanchard P.E.
Chief Engineer
Florida Department
p
of
Transportation
‰ Segmental options have not been competitive
on small projects when bid against simple
span prestressed beam options.
FDOT Structures
Perspective
Design
Roosevelt Bridge
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
Future Trends – Customized Overhead Gantries
ƒ Allowing
All i Cantilever
C il
Construction
C
i on Curved
C
d
Ramps
ƒ Greatlyy Reducingg Traffic Disruptions
p
Example: Palmetto Section 5
February 23, 2010
FDOT/FTBA
Construction
Conference
Brian Blanchard P.E.
Chief Engineer
Florida Department
p
of
Transportation
Transverse Deck Beam
FDOT Structures
Perspective
Design
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
Future Trends – Greater Use of Combined Steel and
Concrete to Reduce Weight?
• Core Segment
• External Strut + Rib
• Precast Panel
Example: Yamakiri Viaduct (Japan)
FDOT Structures
Perspective
Design
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
Future Trends – National Post-Tensioning
Specification
p
PTI is currently
y developing
p g a nationwide p
posttensioning specification based largely on
FDOT specifications, research and past
experiences.
FDOT Structures
Perspective
Design
Segmental
g
Bridge
g Construction
Plans
Review
Group
p
February 23, 2010
FDOT/FTBA
Construction
Conference
Brian Blanchard P.E.
Chief Engineer
Florida Department
p
of
Transportation
S.E. 17th Street Bridge
Contractor’s Structures
Perspective
Design
Plans
Segmental Bridge Construction
g Segmental Bridge Construction
g Review
g Group
g p
Enrique I. Espino, P.E.
President
Condotte America, Inc.
Jim Schneiderman, P.E.
Construction Manager
PCL Civil Constructors, Inc.
February 23, 2010
FDOT/FTBA
Construction Conference
Segmental Bridges –
It’s a Construction Technique with Design
Technique with Design Implications
The Contractor’s Perspective
Contractor’s Structures
Perspective
Design
Plans
Segmental Bridge Construction
g Segmental Bridge Construction
g Review
g Group
g p
• Types
Types of Segmental Bridges and of Segmental Bridges and
Characteristics
Enrique I. Espino, P.E.
President
Condotte America, Inc.
• Precasting
P
ti Segments ‐
S
t
Superstructures & Substructures
• Erecting Precast Segments ‐
Jim Schneiderman, P.E.
Construction Manager
PCL Civil Constructors, Inc.
February 23, 2010
FDOT/FTBA
Construction Conference
Superstructures & Substructures
• Cast‐in‐Place with Form Travelers
Contractor’s Structures
Perspective
Design
Plans
Segmental Bridge Construction
g Segmental Bridge Construction
g Review
g Group
g p
Types of Segmental Bridges
and Characteristics
and Characteristics
Jim Schneiderman, P.E.
Construction Manager
PCL Civil Constructors, Inc.
February 23, 2010
FDOT/FTBA
Construction Conference
Jim Schneiderman, P.E.
Jim
Schneiderman P E
PCL Civil Constructors, Inc.
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
• Types of Segmental Bridge Structures
Types of Segmental Bridge Structures
– Precast Span by Span – Precast Balanced Cantilever
Precast Balanced Cantilever
– Precast Progressive Placement
– Cast‐in‐Place Balanced Cantilever
C t i Pl
B l
d C til
– Cast‐in‐Place Incremental Launching
– Cast‐in‐Place & Precast Cable Stayed
C
i Pl
&P
C bl S
d
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
• Precast Span by Span
Precast Span by Span
Ernest F. Lyons Bridge – Stuart, FL
(Photo courtesy of PCL Civil Constructors, Inc.)
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
• Precast Balanced Cantilever
Precast Balanced Cantilever
J h Ri li C
John Ringling Causeway –
S
Sarasota, FL
t FL
(Photo courtesy of PCL Civil Constructors, Inc.)
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
• Precast Progressive Placement
Precast Progressive Placement
Temp. Support
Linn Cove Viaduct – Blue Ridge Parkway, NC
(Photo courtesy of Figg Engineering Group)
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
• Precast Progressive Placement (cont.)
Precast Progressive Placement (cont )
Temp. Support
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
• Cast
Cast‐in‐Place
in Place Balanced Cantilever
Balanced Cantilever
Form Traveler
Foothills Parkway Bridges – Smokey Mountains, Tennessee
(Photo Courtesy of PCL Civil Constructors, Inc.)
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
Cast in Place Balanced Cantilever (Cont )
Cast‐in‐Place Balanced Cantilever (Cont.)
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
Cast‐in‐Place
Cast
in Place Incremental Launching
Incremental Launching
Launching Direction
Casting Bed
Launching Nose
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
• Precast & CIP Segmental Cable Stayed
Precast & CIP Segmental Cable Stayed
Sunshine Skyway Bridge – Tampa, FL
(Photo courtesy of Figg Engineering Group)
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
Precast and Cast‐in‐Place
Precast and Cast
in Place Cable Stayed (cont.)
Cable Stayed (cont )
Pylon
Stay Cable
Deck
Contractor’s Structures
Perspective
Design
Plans
Segmental Bridge Construction
g Review Group
g p
Precasting Segments
Superstructures & Substructures
Enrique Espino, P.E.
Condotte America, Inc.
Enrique I. Espino, P.E.
President
Condotte America, Inc.
February 23, 2010
FDOT/FTBA
Construction Conference
Contractor’s Structures
Perspective
Design
Plans
Segmental Bridge Construction
g Segmental Bridge Construction
g Review
g Group
g p
Erecting Precast Segments
Superstructures & Substructures
Jim Schneiderman, P.E.
Construction Manager
PCL Civil Constructors, Inc.
February 23, 2010
FDOT/FTBA
Construction Conference
Jim Schneiderman, P.E.
Jim
Schneiderman P E
PCL Civil Constructors, Inc.
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
‐ Precast Segmental Bridge Erection Techniques
Precast Segmental Bridge Erection Techniques
‐ Span by Span Erection Methods
‐ Balanced Cantilever Erection Methods Balanced Cantilever Erection Methods
‐ Erection of Segmental Substructures
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
• Span by Span Erection Methods
– ‘Top Down’ erection using under‐slung truss and segment lifter
Segment Lifter
Underslung Truss
Truss Supports
Ernest F. Lyons Bridge – Stuart, FL
(Photo Courtesy of PCL Civil Constructors, Inc.)
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
• Span by Span Erection Methods
– Overhead Erection Truss
Overhead Erection Truss
Seattle Sound Transit Light Rail Project – Seattle, WA
(Photo courtesy of PCL Civil Constructors, Inc.)
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
‐Span by Span Erection Methods
‐Overhead Erection Truss
Overhead Erection Truss
Overhead Erection Truss
C&D Canal Bridge – Delaware (Photo courtesy of Figg Engineering Group)
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
• Span by Span Erection Methods
p
y p
– Erected on Falsework using conventional cranes
Falsework
(Photo courtesy of Flatiron Constructors, Inc.)
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
• Span by Span Erection Methods
– Lifting of Entire Span at once
Lifti
f E ti S
t
Jamestown Bridge – Rhode Island (Photo Courtesy of Figg Engineering Group)
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
• Typical Balanced Cantilever Erection Methods
yp
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
• Balanced Cantilever Erection Methods
Crane Erection from Ground
Crane Erection from Bridge Deck
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
‐ Balanced Cantilever Erection Methods
‐ Erection using a beam and winch
Oakland Bay Bridge ‐ Oakland, CA
(Photo courtesy of Flatiron Constructors, Inc.)
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
‐ Balanced Cantilever Erection Methods
‐ Erection using overhead Erection Truss
Otay River Bridge – San Diego, CA
(Photo courtesy of International Bridge Technologies)
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
• Segmental Substructures
•
Sequence of Erection:
– Place and Grout Segment to footing Keway
– Erect remaining segments to a predetermined elevation (usually based on stability)
elevation (usually based on stability).
– Perform intermediate P.T. to maintain pier stability
– After all segments have been erected, permanent PT is performed (usually loop
permanent PT is performed (usually loop tendons through footing)
– Tendons are then grouted.
•
Typical Precast Column Segment
Keyway
Splash Zone Requirements:
–
Many states do not allow precast substructure elements to be used within the splash zone. Above the Splash Zone, precast erection can begin.
Keyway in Footing to Align / Stress first Segment
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
• Segmental Substructures
g
C&D Canal Bridge
Hoover Dam Bypass
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
• Segmental Substructures
g
Stressing Vertical Column Tendon
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
• When
When does Precast Segmental Substructure does Precast Segmental Substructure
make sense?
– When you have a large volume production of typical pier shapes
y
g
p
yp
p
p
– When high quality concrete and geometry control of the piers is extremely important
– When there is a long lead time for foundations that allows fabrication When there is a long lead time for foundations that allows fabrication
of pier segments concurrently with foundation work
* The
The major advantage of precasting
major advantage of precasting substructure segments is the substructure segments is the
speed of erection, which surpasses any other conventional method of pier construction.
Structures
Design
Plans
Review
p
Segmental Bridge Construction
g
g Group
Scheduled Seminars :
Scheduled Seminars :
February 17‐18
Denver, Colorado
June 22‐23
Orlando, Florida
For More Information, Please Go To:
http://www asbi assoc org
http://www.asbi‐assoc.org
Contractor’s Structures
Perspective
Design
Plans
Segmental Bridge Construction
g Review Group
g p
Cast‐in‐Place
Cast
in Place with Form Travelers
Enrique Espino, P.E.
Condotte America, Inc.
America Inc
Enrique I. Espino, P.E.
P
President
id
Condotte America, Inc.
February 23, 2010
FDOT/FTBA
Construction Conference
Contractor’s Structures
Perspective
Design
Enrique I. Espino, P.E.
President
Condotte America, Inc.
Jim Schneiderman, P.E.
Construction Manager
PCL Civil Constructors, Inc.
February 23, 2010
FDOT/FTBA
Construction Conference
Plans
Segmental Bridge Construction
g Review Group
g p
Segmental Bridges –
Segmental
Bridges –
It’s a Construction Technique with Design Implications
ith D i I li ti
Structures
Design
Plans Review Group
p
Design
g and Construction Engineer’s
g
Perspective
R. Craig Finley, Jr., P.E.
Managing Principal
FINLEY Engineering
Group, Inc.
February 23, 2010
FDOT/FTBA
Construction Conference
R. Craig Finley, Jr., P.E.
R.
Craig Finley, Jr., P.E.
Finley Engineering Group, Inc.
Structures
Design
Plans Review Group
p
Design and Construction Engineer’s Perspective g
g
p
Presentation Outline
•
•
•
•
•
Key Points to Understanding Segmental
My Background & Perspective
Importance of Project Procurement
Engineering Roles & Responsibilities
p
Special Considerations
Structures
Design
Plans Review Group
p
Design and Construction Engineer’s Perspective g
g
p
Key Points to Understanding Segmental
Segmental bridges are based on a construction technique that has design implications.
Know how to build it before
starting to design it.
g
g
Structures
Design
Plans Review Group
p
Design and Construction Engineer’s Perspective g
g
p
Background
• A bridge engineer, a Florida PE and FTBA member
b
• Involved with segmental bridges continuously since 1979
continuously since 1979
• Working in the USA and internationally
• Started in Florida on the Keys and now doing SR 826/836 Interchange
Structures
Design
Plans Review Group
p
Design and Construction Engineer’s Perspective g
g
p
Perspective
• As a designer and construction engineer
• Preference for contractor driven and design/build projects
• Typically involved with the bid
Typically involved with the bid
The best approach is not always the same for every one or every project.
Structures
Design
Plans Review Group
p
Design and Construction Engineer’s Perspective g
g
p
Importance of Project Procurement
Three ways to do it:
• Design – Bid – Build
g Build
• Design –
• After the fact – Value Engineering or “Construction Modification”
Different approaches to ff
pp
incorporate construction methods
Structures
Design
Plans Review Group
p
Design and Construction Engineer’s Perspective g
g
p
Design – Bid - Build
• Generic design – many assumptions
• Code based – not construction methods or schedule
• Will be reworked by construction engineer before it can be built
• Multiple steps/approvals
Procurement
Structures
Design
Plans Review Group
p
Design and Construction Engineer’s Perspective g
g
p
Design - Build
• Specific design – known construction method
• Better initial optimization and faster process
• More efficient – best results
• Responsibility is where it needs to be
Procurement
Structures
Design
Plans Review Group
p
Design and Construction Engineer’s Perspective g
g
p
Value Engineering / “Construction
Construction Modification”
Modification
•
•
•
•
Combination approach
Combination
approach
Used for an advantage
Has been very successful
Has been very successful
More common in tough times
Procurement
Structures
Design
Plans Review Group
p
Design and Construction Engineer’s Perspective g
g
p
Engineering Roles & Responsibilities
• Design Engineer
Owner Client
• Construction Engineer
Contractor Client
• Value Engineering / Design Build
Structures
Design
Plans Review Group
p
Design and Construction Engineer’s Perspective g
g
p
Design Engineer
• Works for the owner
• Typical scope
–
–
–
–
Design
Drawings
Specifications
Cost estimates
Based on an assumed schedule and means & methods
d
&
h d
Roles & Responsibilities
Structures
Design
Plans Review Group
p
Design and Construction Engineer’s Perspective g
g
p
The Design Engineer provides post-design services.
services
• R
Reviews and approves construction i
d
t ti
engineering
• Based on actual construction engineering
Based on actual construction engineering
– Takes time
– Inefficient
– Personalities involved
Roles & Responsibilities
Structures
Design
Plans Review Group
p
Design and Construction Engineer’s Perspective g
g
p
Construction Engineer
• Works for contractor
• Typical scope
–
–
–
–
–
Integrated shop drawings
Construction analysis and camber
Temporary works / special equipment
Geometry controll
Post‐tensioning support
Roles & Responsibilities
Structures
Design
Plans Review Group
p
Design and Construction Engineer’s Perspective g
g
p
The Construction Engineer does the detailed design.
design
• Performs
Performs time dependent, step by time dependent, step by
step analysis
• Incorporates schedule and sequence
p
q
• Analyzes means and methods
Uses sophisticated software and is
• Uses sophisticated software and is very detailed
Roles & Responsibilities
Structures
Design
Plans Review Group
p
Design and Construction Engineer’s Perspective g
g
p
Value Engineering and Design - Build
• In VE projects, there is overlap between the design and construction engineers.
engineers
• With
With Design‐Build, the design and D i B ild th d i
d
construction engineer are the same.
Roles & Responsibilities
Structures
Design
Plans Review Group
p
Design and Construction Engineer’s Perspective g
g
p
Special Considerations
The Construction Method Dictates Design
• Takes more engineering to Bid & Build
q
g
p
g
• Requires high level of planning and coordination
• Calls for a factory/assembly line mentality
• Is optimum in design/build
Structures
Design
Plans Review Group
Design and Construction Engineer’s Perspective g
g p
p
Managing Principal
Structures
Design
Plans Review Group
p
Design
g and Construction Engineer’s
g
Perspective
R. Craig Finley, Jr., P.E.
Managing Principal
FINLEY Engineering
Group, Inc.
February 23, 2010
FDOT/FTBA
Construction Conference
R. Craig Finley, Jr., P.E.
R.
Craig Finley, Jr., P.E.
Finley Engineering Group, Inc.
Segmental Bridge Construction
Plans Review Group
p
Future Perspective
Future Perspective
Structures
Design
February 23, 2010
FDOT/FTBA
Construction Conference
• More
More design
design‐build
build & experienced & experienced
Contractors.
• Standardization of precast segments
Standardization of precast segments
– Supply like pre‐stressed girders.
• Higher strength and composite materials.
• National specifications for materials and training.
g
Segmental Bridge Construction
Plans Review Group
p
Future Perspective
Future Perspective
Structures
Design
• More
More sophisticated erection sophisticated erection
equipment.
• Rehab market will develop.
Rehab market will develop
• 100+ year service life – durability.
February 23, 2010
FDOT/FTBA
Construction Conference
Segmental Bridge Construction
Plans Review Group
p
Round Table Q & A
Round Table Q & A
Structures
Design
• Florida
Florida Department of Transportation
Department of Transportation’ss Perspective, Brian Blanchard, P.E., Florida Department of Transportation
• Contractor’s Perspective
– Enrique Espino, P.E., Condotte
q
p ,
,
America, Inc.
,
– Jim Schneiderman, P.E., PCL Civil Constructors, Inc.
• Design and Construction Engineers’ Perspective
February 23,
23 2010
FDOT/FTBA
Construction Conference
g
y
y g
g
p
R. Craig Finley, Jr., P.E., Finley Engineering Group

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