National Vision: Making Accelerated Bridge Construction Standard Practice

National Vision: Making Accelerated Bridge Construction

Standard Practice

By: Vasant Mistry Federal Highway Administration

vasant.mistry@fhwa.dot.gov

IOWA DOT Accelerated Bridge Construction Workshop Aug 11-12, 2008

Topics

o Accelerated Bridge Constructiono Standardizing Prefabricated Bridge

Elements and Systems (PBES)o A 6 Minute Video of Pier Construction

using Prefabricated Columns and Capso Available Tools and Resources

Accelerated Bridge Construction

is to build the bridge first before you set cones,

then quickly move it into place – like in hours or a weekend!

Standardizing Prefabricated Bridge Elements and

Systems

Precast Abutments

Precast Abutments

Precast Piers

Precast Piers

Precast deck on precast concrete girders

Precast Decks on Steel Framing

Precast Decks

FRP Decks

Total Bridge Prefabrication

Total Bridge Prefabrication

Superstructure Prefabricationwith Continuity

Superstructure Prefabricationwith Continuity

Retaining Walls

o Mechanically Stabilized Earth Wallso Precast Gravity Wallso Precast Cantilever

A 6 minute video on pier construction using prefabricated

caps and columns

Available Tools and ResourcesLearn more:

www.fhwa.dot.gov/bridge/prefab

Tools: Decision-Making Framework for the Use of

Prefabricated Bridges

Self-Propelled Modular Transporters (SPMT) Manual

Connection Detail Catalog for PBES

FHWA ABC Workshops for DOTs

FHWA Contacts:

Vasant Mistry at Vasant.Mistry@dot.gov

Kathleen Bergeron at Kathleen.Bergeron@dot.gov

Prefabricated Bridge Elements and Systems (PBES)

PBES offers significant advantages over Cast-in-place construction

oReduces onsite construction timeoReduces Traffic and Environmental impactoLowers First and Life-Cycle Costso Improves Safety and Quality

Thank YouAccelerated

Bridge

Construction