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Load Distribution in a Composite Steel Box Girder Bridge

R. E. Davis / G. A. Castleton

Field tests were performed to assess the behavior of a steel box girder bridge having a composite, concrete, roadway deck slab. The structure was instrumented at one midspan cross-section and a section near the support of Span 20, one of the simple approach spans, to permit studies of bending and shear strain distributions. Live load was applied with a simulated AASHO design truck and a double goose-neck, lowbed hauler ballasted to a gross load of 220,000 pounds. Theoretical analyses were performed with a finite element program called FINPLA. Live load membrane strains were accurately predicted by the program, but fiber strains, especially in the transverse direction, were greatly influenced by plate warpage and initial, local, dead load deflections. (Modified author abstract)

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Load Distribution in a Composite Steel Box Girder Bridge

R. E. Davis / G. A. Castleton

Field tests were performed to assess the behavior of a steel box girder bridge having a composite, concrete, roadway deck slab. The structure was instrumented at one midspan cross-section and a section near the support of Span 20, one of the simple approach spans, to permit studies of bending and shear strain distributions. Live load was applied with a simulated AASHO design truck and a double goose-neck, lowbed hauler ballasted to a gross load of 220,000 pounds. Theoretical analyses were performed with a finite element program called FINPLA. Live load membrane strains were accurately predicted by the program, but fiber strains, especially in the transverse direction, were greatly influenced by plate warpage and initial, local, dead load deflections. (Modified author abstract)

Load Distribution in a Composite Steel Box Girder Bridge

R. E. Davis / G. A. Castleton

Field tests were performed to assess the behavior of a steel box girder bridge having a composite, concrete, roadway deck slab. The structure was instrumented at one midspan cross-section and a section near the support of Span 20, one of the simple approach spans, to permit studies of bending and shear strain distributions. Live load was applied with a simulated AASHO design truck and a double goose-neck, lowbed hauler ballasted to a gross load of 220,000 pounds. Theoretical analyses were performed with a finite element program called FINPLA. Live load membrane strains were accurately predicted by the program, but fiber strains, especially in the transverse direction, were greatly influenced by plate warpage and initial, local, dead load deflections. (Modified author abstract)

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Title:

Load Distribution in a Composite Steel Box Girder Bridge

Contributors:

R. E. Davis (author) / G. A. Castleton (author)

Publication date:

1973

Size:

195 pages

Type of media:

Report

Type of material:

No indication

Language:

English

Keywords:

Civil Engineering , Girder bridges , Composite structures , Loads(Forces) , Box beams , Bridge decks , Dynamic loads , Shear stress , Data processing , California , Box girders , Finite element analysis

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