上承式拱桥设计方案对比分析

Comparative Analysis of Design Schemes for Upper Arch Bridges

为了优化上承式拱桥的安全性能,提出了两种新型桥型,并以实际工程为背景采用有限元软件建立参数化模型进行力学分析。结果表明,飞燕上承式结构造型更美观,而刚架拱组合静动力性能更优,稳定性更高,在地震响应下结构更安全。所得结论为上承式拱桥的规划设计提供了参考。

In order to optimize the safety performance of the upper arch bridge,two new bridge types are proposed in this paper.The finite element software is used to establish the parametric model for mechanical analysis.The results show that the flying bird's upper bearing structure is more beautiful,the rigid frame arch combination has better static and dynamic performance and higher stability,and the structure is safer under earthquake response.The conclusions obtained provide a reference for the planning and design of the upper arch bridge.