大同市北都桥总体结构设计及计算分析

Analysis on Design and Calculation of Overall Structure for Datong Beidou Bridge

重点介绍了山西省大同市连接新老城区的一座重要城市景观桥梁——北都桥的结构设计和施工方案。该桥主桥采用单跨140 m的下承式钢桁架拱桥,单侧双吊杆设计。通过静力、稳定计算分析及拱脚局部三维分析,验证了该设计方案的合理性以及安全性。可为同类桥型设计提供参考。

The article introduces the structure design and construction schemes of Beidu Bridge,which is an important landscape bridge connecting the old and new city areas in Datong City of Shanxi province.Its main bridge is a 140-m single-span through steel truss arch bridge with the design of unilateral double booms.Through the static and stability calculation analysis,and the three-dimensional analysis of partial arch foot,the rationality and security of this design scheme are verified,which can be referred for the design of this kind of bridges.