波形钢腹板组合箱梁桥的设计与计算分析

摘要

针对国内首座应用于高速公路的波形钢腹板组合箱梁桥——卫河特大桥，对其箱梁预应力体系布置等方面的设计进行了介绍，并采用桥梁博士建立杆件分析模型，对主梁的受力进行了验算。结果表明，在承载能力极限状态下，主梁承载能力满足要求，抗剪连接件的抗剪能力满足要求；在正常使用极限状态下，主梁的应力及主梁挠度满足要求，且波形钢腹板不会发生屈曲破坏。%Wei River Bridge is the first composite continuous box-girder freeway bridge with the corrugated steel webs in China. The detailed design configuration of box girder,and the arrangement of the prestressing tendon is introduced. A spatial calculation model of the bridge is built,and the calculations of the composite box girder are checked in accordance with the design code. The results of the checking calculations indicate that at the ultimate limit state,the load-bearing capacity of box girder and the shear capacity of shear connectors meet standard requirements;at the serviceability limit state,the stresses and the deflection of box girder meet standard requirements,and the buckling would not happen before shear yield of corrugated steel webs.