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Alternative Title:Shear tests of high performance steel hybrid girders
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Abstract:High performance steel (HPS) has been used in hundreds of bridges in the United States. A large percentage of these bridges have used HPS in the form of hybrid girder design. One limit with hybrid girder design, which decreases the beneficial aspects, is that tension field action (TFA) is not allowed when determining the shear capacity. The objective of this research is to validate the tension field action behavior in hybrid plate girders. The goal is to allow TFA in hybrid girders resulting in more economical design of steel bridges. This report includes a thorough presentation of TFA and moment-shear interaction in plate girders, and in particular hybrid plate girders. It presents a comprehensive presentation on experimental test girders with a detailed analysis and examination of test behaviors. As a result of this work, in addition to work of others cited, TFA for hybrid girders has been adopted by American Association of State Highway and Transportation Officials (AASHTO) or bridges and removal of the moment-shear interaction has been adopted by AASHTO for bridges and American Institute of Steel Construction for buildings.
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[PDF-8.09 MB]
