拱型波纹屋盖在风与雪作用下的有限元分析

以W666型拱型波纹屋盖为研究对象，对30m跨波纹拱在不同矢跨比，支座边界为固支的条件下进行风荷载、雪荷载作用几何非线性有限元分析？结果表明，波纹拱在风荷载作用下结构的变形是非对称的；在风荷载值相同的情况下，由于半跨雪荷载加在风压一侧，加重了波纹拱迎风面的风荷载，结构变形比全跨雪荷载作用时大，结构承载力相对降低。这些结论为波纹拱的设计、研究和应用提供了一定的参考依据。

Finite Element Analysis of Metal Arch Corrugated Roof Under Wind Load and Snow Load

The type W666 of metal arch corrugated roof was taken as study object in this paper. The geometrical non-linear finite element analysis of 30 m span under the effect of wind load and snow load were studied under the different ration of high-span and the condition of immobility supporting stands. The results show that the deformation of the structure was non-symmetric under wind load. And while half-span snow load was put on one side of the wind pressure of metal ACR, which added to the wind load of the windward side of the structure, the deformation of the structure was bigger than that under whole-span snow load, which made the load-bearing capacity of the structure decrease accordingly. Some references for the design, research and application of ACR were provided.