公轨两用钢主梁斜拉桥的施工仿真计算

以公轨两用钢主梁斜拉桥——上海市闵浦二桥为工程实例,给出了采用悬臂拼装施工方法的公轨合建钢主梁斜拉桥的施工仿真计算方法。按照实际施工过程,采用Midas/Civil程序,建立了闵浦二桥主桥的空间计算模型得到主塔偏移变形、主梁内力以及主梁各节段的制造预拱度与施工预拱度。经仿真所得计算结果,为此类型桥的施工控制提供参考。

Construction's Simulate Calculation of A Cable-stayed Dual-purpose Bridge with Steel Girder for Highway and Light Rail Traffic

Minpu Bridge II, a cable-stayed dual-purpose bridge with steel girder for highway and light rail traffic,is taken as an engineering example in this paper to provide simulate calculation measures during construction for cable-stayed bridge which has steel girder, adopts the cantilever erection method and highway and light rail joint building. According to the actual construction process, this paper has established the space calculation model of Minpu Bridge II and obtained the main tower's offset and deformation,main girder's internal force and main girder's each segment's fabrication camber and construction camber. The calculation results can provide references to the bridge's construction control.