异型钢结构整体稳定性分析  

Stability Analysis of a Peculiar Steel Structure

作　　者：高茂远 李健[2] 罗永峰[2] 

机构地区：[1]上海浦东建设工程安全质量监督站,上海200135 [2]同济大学建筑工程系,上海200092

出　　处：《结构工程师》2012年第6期14-18,共5页Structural Engineers

基　　金：上海市科委"中国浦东干部学院建筑工程关键技术研究"(021002995)项目

摘　　要：异形钢结构设计,除考虑构件整体稳定和构件局部稳定外,结构的整体稳定至关重要。通过对一个异形钢结构的整体稳定分析,得到了该结构整体稳定性态与结构体系、边界约束间的内在关系,说明了结构屈曲模式的特点与形成机理,获得了结构的整体稳定临界荷载因子,为设计提供了可靠的计算数据。同时,根据计算结果,提出了该钢结构制作安装的精度要求。In design of peculiar steel structures, it is important to consider the global stability of the structure besides requirement of the overall stability and local stability of the components. In this paper, the overall sta-bility analysis of a peculiar steel structure was conducted. The intrinsic relationship among the overall stability characteristics, structural system and boundary condition were obtained. The feature of the overall buckling modes and the buckling mechanism of the structure were also investigated. The critical buckling load was obtained and provided for design. And at the same time, a reasonable manufacture accuracy is proposed.

关 键 词：异形钢结构 整体稳定性态 缺陷敏感性 屈曲模式 

分 类 号：TU391[建筑科学—结构工程]