Top-lateral bracing systems for trapezoidal steel box-girder bridges.

Chen, B. S.; Yura, J. A.; Williamson, Eric B.; Frank, K. H.

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Top-lateral bracing systems for trapezoidal steel box-girder bridges.

2005-08-01
By Chen, B. S. ; Yura, J. A. ; Williamson, Eric B. ; ...

File Language:

English

Details

Creators:

Chen, B. S. ; Yura, J. A. ; Williamson, Eric B. ; Frank, K. H.
Corporate Creators:

University of Texas at Austin. Center for Transportation Research
Corporate Contributors:

Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration
Subject/TRT Terms:

Box Girder Bridges Bracing Bridge Decks Bridge Design Construction Loads Curved Girder Bridge Finite Element Analysis Lateral Supports Rectangles Software Steel Bridges Torsional Strength Trapezoidal Girder
Publication/ Report Number:

FHWA/TX-07/0-1898-4
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

University of Texas at Austin. Center for Transportation Research
Abstract:

Trapezoidal steel box girders are becoming increasingly popular as a bridge system due to their torsional efficiency and aesthetic appearance. These bridge systems utilize one or more trapezoidal steel girders with a cast-in-place composite concrete roadway. The critical design stage occurs during pouring of the bridge deck, when the steel superstructure must support the weight of the fresh concrete. Top-lateral bracing systems are used to provide both strength and stiffness during construction.

A method for the design of top-lateral bracing systems was developed through field and laboratory experiments conducted on fullscale trapezoidal steel box-girders. The top-lateral bracing systems investigated included traditional single-diagonal truss systems and stay-in-place metal deck forms used during deck casting. Results include torsional girder stiffnesses, brace forces, and loaddeflection responses. Design issues, limitations, and guidelines for truss, metal-deck, and combined top-lateral systems are presented.
Format:

PDF
Funding:

0-1898
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha256:ae3b2e3f5ac02dc31db06bb6514f61d89c09a6b77423b712746701d640414d5e
Download URL:

https://rosap.ntl.bts.gov/view/dot/31885/dot_31885_DS1.pdf
File Type:

[PDF - 2.55 MB ]

File Language:

English

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