大跨度钢箱拱肋合拢方案仿真分析

Simulation analysis of Closure scheme for large span steel box arch bridge

某主跨308 m的中承式钢箱系杆拱桥,主拱肋采用工厂拼装、驳船浮运、整体提升的合拢方案。详细介绍了钢箱拱肋的合拢方案及合拢细节措施,采用有限元分析软件ANSYS对合拢段的受力进行了仿真计算,论证了合拢设计的合理性和安全性,本桥的成功实施,对今后同类型桥梁设计和施工有着借鉴作用。

A steel box tied arch bridge with main span of 308 m,the arch is produced in precast yard,then transport to the location of bridge by Barge,and then lifting. This paper Detailed introduced the Closure scheme of steel box arch,the mechanics performance of closure segment is also been studied in this paper. The construction of this Bridge Provide some reference for the design and construction of the same type bridges in the future.