斜拉桥防撞钢套箱有限元数值模拟分析

Finite Element Numerical Simulation Analysis of the Anti-impact Steel Casing Box in Cable-stayed Bridge

以飞云江大桥工程为依托,根据有限元分析理论利用有限元分析软件Midas Civil及FEA,通过建立有限元模型,分析防撞钢套箱的变形与受力特性,判断施工各阶段工况的受力是否满足安全要求,确定防撞钢套箱能够保证桥梁结构的安全性和适用性,可对桥梁的防撞性能研究提供理论参考,方便进行桥梁防撞的优化设计,为此类工程提供一定的借鉴经验。

Based on feiyun river bridge project,this paper establish a finite element model with the theory of finite element analysis and finite element analysis software Midas Civil and FEA to analysis deformation and stress characteristics of anti-impact steel casing box,then estimate whether the stress of the working condition of each stage of construction meet the safety requirements and determine that the anti-impact steel casing box can guarantee the safety of bridge structure and applicability,thus to provide theoretical reference to the research on the anti-impact performance of the bridge.It is also convenient to optimize the design of collision prevention and provide some reference experience for such projects