大跨径钢箱提篮拱桥的施工监控与仿真

结合某拱桥工程实例,介绍了中承式钢箱提篮拱桥施工监控的内容。利用有限元建立全桥模型,对其成桥阶段的结构应力进行了仿真分析和研究。在此基础上,对多个结构参数进行了敏感性分析,得出显著影响该桥线形和内力变化的敏感性参数,并据此提供监控意见。

The Construction Monitoring and Simulation Analysis of Large Span Steel Box Handle-basket Arch Bridge

Based on the engineering example of an arch bridge,this paper introduced the contents of the construction monitoring about the half-through basket handle arch bridge of steel box type.To analyze and study,using simulation method,the structural stress of the finished stage by means of finite element model which established the model of whole bridge.On this basis,sensibility analysis of multiple structure parameters,it is found that the sensitive parameter which had significant effect on the bridge alignment and the inner force variation,and put forward the monitoring advice.