柯江华，  魏  勇，  韩  巍，  朱  鸣，  张  徐
    （北京市建筑设计研究院，北京 100045）

[摘要] 鲁台经贸中心-会展中心蒙皮采用大跨度复杂空间钢网壳结构，包括双层网壳和单层网壳，其稳定分析是结构设计的重点和难点。本文分别研究了局部单层网壳结构和整体网壳结构在多种不利荷载组合作用下的稳定性能，分析过程中考虑几何非线性、初始缺陷以及雪荷载不均匀布置的影响。分析结果表明，网壳结构具有良好的整体稳定性能。
[关键词] 网壳；几何非线性；初始缺陷；稳定分析
中图分类号：TU337    文献标识码：A  文章编号：1002-848X(2011) Sl-0807-03

Stability analysis on outer steel reticulated shell structure of Shandong-Taiwan Trade and Exhibition Center
Ke Jianghua, Wei Yong, Han Wei, Zhu Ming, Zhang Xu
( Beijing Institute of Architectural Design, Beijing 100045, China)

Abstract: The outer structure of Shandong-Taiwan Trade and Exlubition Center is a complicated long span spatial steel reticulated shell structure, which includes double-layer reticulated shell and single-layer reticulated shell. Its stability analysis is important and difficult in structural design. This paper studies the stability of partial single -layer reticulated shell structure and integral reticulated shell structure under several unfavorable load combinations, the influence of geometric nonlinearity,irutial imperfection and the impact of non-uniform snow load is considered during the process of analysis. The results show that this steel reticulated shell structure has a good integral stability.
Keywords: reticulated shell; geometric nonlinearity; initial imperfection; stability analysis