Cross-Frame Diaphragm Bracing of Steel Bridge Girders [Summary]

Roddis, W. M. Kim; Winters, Erika L.; Baghernejad, Soudeh; University of Kansas. Transportation Center

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Cross-Frame Diaphragm Bracing of Steel Bridge Girders [Summary]

2008-01-01
By Roddis, W. M. Kim ; Winters, Erika L. ; Baghernejad, Soudeh

[PDF-61.11 KB]

English

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Creators:

Roddis, W. M. Kim ; Winters, Erika L. ; Baghernejad, Soudeh

Roddis, W. M. Kim ; Winters, Erika L. ; Baghernejad, Soudeh Less -
Corporate Creators:

University of Kansas. Transportation Center
Corporate Contributors:

Kansas. Dept. of Transportation. Bureau of Local Projects
Subject/TRT Terms:

[+]

Bracing Bridges And Other Structures Construction Design Diaphragm Walls Girder Bridges Highways I24: Design Of Bridges And Retaining Walls I53: Construction Of Bridges And Retaining Walls Retaining Walls Steel Bridges
Publication/ Report Number:

K-TRAN: KU-01-2
Resource Type:

Brief
Geographical Coverage:

Kansas ; United States

Kansas ; United States Less -
Edition:

Research Summary
Corporate Publisher:

Kansas. Dept. of Transportation
Abstract:

Steel plate girder bridges make use of traditional cross-frame diaphragms to stabilize the compression flange of girders. These braces are required during construction, especially during deck placement, to prevent lateral torsional buckling of bridge girders. Girder buckling capacity is a function of cross-frame diaphragm spacing as well as strength and stiffness. Recent developments in bridge design may cause the governing girder limit state to shift from one of strength to one of stability. These developments include the elimination of in-plan bracing, composite girders, high performance steels, and phased deck replacements. In addition, the American Association of State Highway and Transportation Officials (AASHTO) has changed its code requirement for cross-frame diaphragm spacing in the 1998 AASHTO LRFD Bridge Design Specifications.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:eebe784f001f32ff924b95afc36e2e135d774f61f4e276d6f40e5f0e1e276e27
Download URL:

https://rosap.ntl.bts.gov/view/dot/40193/dot_40193_DS1.pdf
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Cross-Frame Diaphragm Bracing of Steel Bridge Girders [Summary]

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