北戴河站无柱雨棚钢管桁架结构的整体稳定分析  

Overall stability analysis on the roof truss of beidaihe railway station

作　　者：杨惠东[1] 王士裴[1] 申允[1] 白林佳[2] 尹越[2] 韩庆华[2] 

机构地区：[1]铁道第二勘察设计院,四川成都610031 [2]天津大学建筑工程学院,天津300072

出　　处：《四川建筑科学研究》2007年第1期24-27,共4页Sichuan Building Science

摘　　要：钢管桁架在大跨度结构中应用日益广泛,其整体稳定性是设计者必须考虑的关键问题。结合一工程实例,采用有限元分析软件ANSYS对单榀桁架的整体稳定性进行了线性屈曲分析和非线性屈曲分析,考虑了不同初始几何缺陷的影响,并将计算结果与简化算法的结果进行了比较,为同类结构的设计提供了参考。Pipe truss is widely used in the long span structures and its overall stability is the key point of the design which ought to be considered by the designers. In this paper, combined with a practical example, the overall stability of the truss is studied employing linear and nonlinear buckling analysis methods with the finite element analysis software ANSYS. The influence of the different initial geometrical imperfection is considered. By comparing the result with that of the simplified calculation, some suggestions for the similar design are provided.

关 键 词：钢管桁架 整体稳定 初始缺陷 简化计算 

分 类 号：TU393[建筑科学—结构工程]