Full-Depth Precast Concrete Bridge Deck System: Phase II

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MnDOT2012-30.pdf (8.76 MB)

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http://purl.umn.edu/140893

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Title

Full-Depth Precast Concrete Bridge Deck System: Phase II

Authors

Halverson, Max

French, Catherine

Shield, Carol

Published Date

2012-10

Publisher

Minnesota Department of Transportation

Type

Report

Abstract

The Minnesota Department of Transportation (MnDOT) has developed a design for a precast composite slab-span system (PCSSS) to be used in accelerated bridge construction. The system consists of shallow inverted-tee precast beams placed between supports with cast-in-place (CIP) concrete placed on top, forming a composite slab-span system. Suitable for spans between 20 and 60 ft., the MnDOT PCSSS is useful for replacing a large number of aging conventional slab-span bridges throughout the United States highway system. The PCSSS has particular durability, constructability, and economical concerns that affect its value as a viable bridge design. To address these concerns, the performance of existing PCSSS bridges was evaluated and a review of a number of PCSSS design details was conducted. The field inspections demonstrated that design changes made to the PCSSS over its development have improved performance. A parametric design study was also conducted to investigate the effects of continuity design on the economy of the PCSSS. It was recommended that the PCSSS be designed as simply supported rather than as a continuous system.

Keywords

Prestressed concrete bridges

Accelerated construction

Bridge construction

Bridge design

Restraint moment

Slabs

Bridge decks

Field studies

Description

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Research Reports

Series/Report Number

MnDOT
2012-30

Funding information

Department of Civil Engineering, University of Minnesota

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Halverson, Max; French, Catherine; Shield, Carol. (2012). Full-Depth Precast Concrete Bridge Deck System: Phase II. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/140893.

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