波形钢腹板组合箱梁桥荷载试验研究

Study on Load Test of Corrugated Steel Web Composite Box Girder Bridge

为检验某新建波形钢腹板-钢底板-混凝土顶板组合箱梁桥的施工质量及实际承载能力,分析该桥在等效车辆荷载作用下的静、动力特性,运用结构有限元分析软件MIDAS CIVIL对该桥建立有限元仿真模型。通过现场静载试验及动载试验,实测桥梁结构在等效车辆荷载下的静、动态数据并与理论计算值进行比对分析,以此验证简化模型的合理性和准确性,并对桥梁施工质量和实际承载能力做出评价。

In order to test the construction quality and actual bearing capacity of a new corrugated steel web-steel baseboard-concrete top composite box girder bridge,the static and dynamic characteristics of the bridge under the equivalent vehicle load are analyzed.The finite element simulation model of the bridge is established by using the structural finite element analysis software MIDAS CIVIL.Through the field static load test and dynamic load test,the static and dynamic data of the bridge structure under the equivalent vehicle load are measured and compared with the theoretical calculation values so as to verify the rationality and accuracy of the simplified model.And the construction quality and the actual bearing capacity of the bridge are evaluated.