承德市闫营子主桥结构设计及计算分析

Structural Design and Computational Analysis of Main Bridge in Yanyingzi of Chengde City

重点介绍了河北省承德市新城区跨越滦河的一座重要城市景观桥梁——闫营子主桥的景观方案及结构设计与计算分析。该桥主桥采用三塔四跨预应力混凝土矮塔斜拉桥结构,跨径为80 m+150 m×2+80 m=460 m。采用塔梁固接,塔墩分离结构体系。通过静力及稳定分析,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 landscape scheme,structural design and computational analysis of Yanyingzi Bridge-an important urban landscape bridge in Hebei Province Chengde City New Area crossing Luanhe River are specially introduced.Its main bridge is a three-pylon four-span pre-stressed concrete low-pylon cable-stayed bridge.Its spans are 80 m+150 m×2+80 m=460 m.The pylon is consolidated with the beam.The separated structural system is adopted for the pylon and pier.By the static and stability analysis,the rationality and safety of this design scheme are verified,which can be referred for the design of the similar bridges.