大跨双肢波形钢-RPC刚构桥跨度研究及结构试设计

Study and Trial Design on Large-span Double-limb PrestressedConcrete Rigid Bridge with Corrugated Steel Webs

为解决既有波形钢腹板连续刚构桥跨度偏小的问题,分析了影响该类桥梁跨度的主要影响因素,提出解决限制其跨度增长关键问题的具体措施。以155m+270m+155m双肢波形钢-RPC刚构桥为对象,通过结构试设计、理论分析计算,得出波形钢腹板-RPC桥梁能够向更大跨度发展的结论。

In order to solve the small span problem ofcontinuous rigid frame bridge with corrugated steel webs, the main factors affecting the span of this kind of bridge have been analyzed, and the concrete measures to solve the key problems limiting the span growth have been put forward. Taking the 155 m+270 m+155 m double-leg corrugated steel-RPC rigid frame bridge as the research object, through structural trial design, theoretical analysis and calculation, it has been concluded that the corrugated steel web-RPC bridge can develop to a larger span.