京沪高速铁路钢箱梁拱组合桥设计

Design of steel box girder and arch combined bridge for Beijing-Shanghai high-speed railway

通过建立MIDAS模型,对京沪高速铁路96 m四线钢箱梁拱组合结构进行了偏载影响和拱脚局部应力计算。由于桥梁刚度大,结构偏载影响较小;拱脚局部应力分析表明设计成果满足规范要求。

The MIDAS model was established,and the eccentric loading effect and the local stress of the arch springer were calculated on the 96 m four-track steel box girder and arch combined structure of Beijing-Shanghai high-speed railway. Due to the high stiffness of the bridge,the structure eccentric load effect is less. The local stress analysis of arch springer shows that the design results meet the requirements of the standard.