摘要
目前,单层网壳结构已广泛应用于体育馆、会展中心等大跨度建筑中。天津水游城是一大型商业建筑工程,根据其屋盖结构的造型和构成,经过比较后采用有树状支承的单层网壳结构体系来满足建筑功能的要求。利用MIDAS建立了结构的空间有限元模型,在各种荷载工况和组合下进行结构计算,得到了结构的受力和变形特点,并通过控制杆件的应力比选定截面规格,进而通过静力分析、反应谱分析、屈曲分析和非线性分析,得到了树状支承单层网壳结构的各项结构性能,可为工程设计提供参考。
At present, single layer latticed shell has been applied in many long-span buildings, such as gymnasiums, exhibition centers and so on. According to the shape and arrangement of the roof, the structure system of single layer latticed shell with tree support which could meet the function requirements is adopted in Tianjin Water City after optimization analysis. The finite element model is built by MIDAS software. And the internal forces and deformations are got from the calculation of the structure in various load cases. Tbetype of the section is selected considering controlling stress ratio. The influence on the performance of the structure of tree support is got from the static analysis, response spectrum analysis,eigenvalue-buckling analysis and nonlinear buckling analysis. These are standardized to be applied directly to practical engineering.
出处
《建筑钢结构进展》
北大核心
2012年第1期8-13,共6页
Progress in Steel Building Structures
基金
天津市建设系统科学技术发展计划(2008-24)
关键词
网壳结构
树状支承
结构设计
静力性能
动力性能
稳定分析
single layer latticed shell
tree support
structural design
static behavior
dynamic behavior~ stability analysis
