中山市长江大桥蝴蝶拱桥空间稳定性分析

广东省中山市的长江大桥为蝴蝶拱桥。其造型新颖独特,受力复杂,对其进行稳定分析十分必要。采用ANSYS程序,建立了空间杆系有限元计算模型,并对其进行了第一类和第二类空间稳定性分析,对每一种模型分别进行线弹性和几何非线性计算,得到了一些重要结论。对该类桥梁的建设具有一定的借鉴作用。

Spatial stabilization analysis of butterfly arch bridge in zhongshan city of Guangdong Province

The changjiang bridge of zhongshan city is a butterfly arch bridge. It's structure is very special and novelty, and it's internal force is very complex. So it is very necessary to make a stabilization analysis for this bridge. A spatial pole series finity element models is established by means of ANSYS program. Some important conclusions are gained from the first species and second species stablization analysis for this model. These conclusions can be used for reference in the construction process of this kind of bridges.