【摘 要】
：
Since steel provides high tensile strength and concrete possesses the adequate compressive strength,composite steel-concrete bridges are usually characterized by high strength,full usage of materials,
【机 构】
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College of Civil Engineering,Tongii University,Shanghai,China
【出 处】
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The 7th International Conference on Bridge Maintenance, Safe
论文部分内容阅读
Since steel provides high tensile strength and concrete possesses the adequate compressive strength,composite steel-concrete bridges are usually characterized by high strength,full usage of materials,high stiffness,and sufficient ductility.However,evaluating the structural behavior of the composite steel-concrete bridges becomes more complicated due to the different material properties of the steel and concrete.Especially,time-dependent behavior of concrete,such as creep and shrinkage,makes it difficult to evaluate the structural response of this type of bridges.Currently,the transformed-section method (Gilbert & Bradford 1995),in which the materials of composite members are transformed into steel and concrete,is mainly used in the analysis of composite steel-concrete bridges.
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