Lateral Load Distribution on Transverse Floor Beams in Steel Plate Girder Bridges

Pennings, K. R.; Frank, K. H.; Wood, S. L.; Yura, J. A.; Jirsa, J. O.

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Lateral Load Distribution on Transverse Floor Beams in Steel Plate Girder Bridges

2000-08-01
By Pennings, K. R. ; Frank, K. H. ; Wood, S. L.

File Language:

English

Details

Creators:

Pennings, K. R. ; Frank, K. H. ; Wood, S. L. ; Yura, J. A. ; Jirsa, J. O.
Corporate Creators:

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

United States. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

RR-1746-3
Resource Type:

Tech Report
Geographical Coverage:

Texas ; United States
Edition:

Research Report 1746-3
Corporate Publisher:

Texas. Dept. of Transportation
Description:

Many twin plate girder bridges have been recently rated inadequate for their current design loads. The controlling members that determine the bridge rating is often the transverse floor beams. The current provisions assume no lateral load distribution on the floor beams. This research focused on determining how the load is actually distributed. Using the SAP2000 finite element program, different floor system models were studied. The floor beam moments found by finite element modeling were 5-20% lower than the moments predicted by the current provisions due to load distribution and the moment carried by the concrete slab. An experimental test was also run on a similar floor system and the moments on the floor beam for this test were even lower than the moments predicted using finite element modeling showing that the finite element results are conservative as well. Recommended load distribution methods for the design and rating of floor beams are presented.
Format:

PDF
Funding:

Project 0-1746
Download URL:

https://rosap.ntl.bts.gov/view/dot/42071/dot_42071_DS1.pdf
File Type:

[PDF - 2.51 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha256:3293737e44d5014c03b50719aded3fb3eca8321b15c7439ec9ab2c8fc74d4622

File Language:

English

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