大跨度钢结构门式墩设计

摘要

Combining the engineering examples,the paper introduces the design methods,points,and the calculation process for the optimized design for the portal pier of the large-span steel structure along four line railways bridge,and provides the calculation results for the steel structure hat beam,so as to provide direction for similar projects.%结合工程实例,介绍了四线铁路桥大跨度钢结构门式墩的设计方法、要点,以及优化设计计算过程,给出了钢结构帽梁检算结果,可为类似工程提供一定指导。