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Live-Load Stresses in a Straight Box-Girder Bridge

C. A. Croce / D. B. Beal

Current AASHO design criteria governing transverse distribution of live loads in steel box-grider bridges were developed as the result of numerous analytical and experimental studies. However, since these studies were confined to right simply supported structures, application of these design relationships to other structural configurations is questionable. Consequently, a field testing program was initiated to verify the applicability of these relationships to a two-span continuous twin box-girder bridge with skewed end supports. Experimental transverse influence lines for stress and vertical deflection were developed and employed in determining live-load distribution factors for both the positive and the negative bending moment regions. (Modified author abstract)

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Live-Load Stresses in a Straight Box-Girder Bridge

C. A. Croce / D. B. Beal

Current AASHO design criteria governing transverse distribution of live loads in steel box-grider bridges were developed as the result of numerous analytical and experimental studies. However, since these studies were confined to right simply supported structures, application of these design relationships to other structural configurations is questionable. Consequently, a field testing program was initiated to verify the applicability of these relationships to a two-span continuous twin box-girder bridge with skewed end supports. Experimental transverse influence lines for stress and vertical deflection were developed and employed in determining live-load distribution factors for both the positive and the negative bending moment regions. (Modified author abstract)

Live-Load Stresses in a Straight Box-Girder Bridge

C. A. Croce / D. B. Beal

Current AASHO design criteria governing transverse distribution of live loads in steel box-grider bridges were developed as the result of numerous analytical and experimental studies. However, since these studies were confined to right simply supported structures, application of these design relationships to other structural configurations is questionable. Consequently, a field testing program was initiated to verify the applicability of these relationships to a two-span continuous twin box-girder bridge with skewed end supports. Experimental transverse influence lines for stress and vertical deflection were developed and employed in determining live-load distribution factors for both the positive and the negative bending moment regions. (Modified author abstract)

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Title:

Live-Load Stresses in a Straight Box-Girder Bridge

Contributors:

C. A. Croce (author) / D. B. Beal (author)

Publication date:

1973

Size:

34 pages

Type of media:

Report

Type of material:

No indication

Language:

English

Keywords:

Highway Engineering , Girder bridges , Box beams , Dynamic loads , Numerical analysis , Field tests , Loads(Forces) , Stress concentration , Bending moments

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