(1 中国航空规划建设发展有限公司，北京100120； 2 北京交通大学，北京100044)

［摘要］河南艺术中心40m高悬臂玻璃艺术墙采用了“单层索网次结构-平面钢管相贯桁架主体结构”体系。首先研究确立了结构整体大变形失稳破坏极限状态下体系强度的强屈比、体系变形的延性性能，对整体结构进行了考虑几何非线性、材料弹塑性、初始几何缺陷的稳定分析与设计。重点进行了基于延性性能的结构抗震性能研究，对整体结构进行大震弹塑性时程分析，对结构自振特性、构件应力比、结构位移、塑性铰分布与损坏程度等性能进行深入量化分析与设计。通过上述系列分析研究，实现了抗震安全及整体稳定安全的双重延性性能化设计目标。

［关键词］延性性能；几何非线性；体系稳定屈曲分析；弹塑性时程分析

中图分类号：TU318.82，TU398.9文献标识码：A文章编号：1002-848X(2011)02-0031-06Ductility security performance of the cable-net pipe truss in Henan Provincial Art Centre

Ge Jiaqi1, Wang Yongning¹, Zhang Ling¹, Wang Shu¹, Huang Jiyang¹, Chen Dan²

(1 China Aviation Planning and Construction Development Co., Ltd., Beijing 100120, China;

2 Beijing Jiaotong University, Beijing 100044, China)

Abstract:The cantilevered art wall with 40m height at Henan Provincial Art Centre, employs a structural system of the single layer cable-net combined with pipe truss. The structural overall stability analysis was conducted considering geometric nonlinearity, elastic-plastic material, and initial geometric imperfection respectively, to identify the yield ratio and the structural ductile deformation under the buckling collapse limit state.  The structural seismic performance was studied on the basis of the ductility behavior by performing the elastic-plastic time-history analysis. The numerical analysis and design were conducted for the structure modal, the member stress ratio, the structure displacement, the plastic hinge distribution, and the collapse level. Through the above analysis, the objective of the double ductility performance design of the earthquake-resistance security and the overall stability security was realized.

Keywords:ductility performance; geometric nonlinearity; buckling analysis of overall stability; elastic-plastic time-history analysis

作者简介：葛家琪，研究员，一级注册结构工程师，结构总工程师，Email:capdi.gssd@vip.163.com。

参考文献

［1］葛家琪，王树，杨霄，等. 河南艺术中心艺术墙共享大厅结构体系稳定性分析［J］. 建筑结构, 2008，38(12): 11-13.

［2］葛家琪，张国军，王树，等. 2008奥运会大跨度钢结构整体稳定性能分析研究［J］.建筑结构学报, 2007，28(6): 22-30.

［3］沈士钊，陈昕.网壳结构稳定性［M］. 北京: 科学出版社, 1999.

［4］JGJ61—2003网壳结构技术规程［S］.北京：中国建筑工业出版社，2003.

［5］GB50017—2003钢结构设计规范［S］.北京：中国计划出版社，2003.

［6］GB50011—2001建筑抗震设计规范［S］.2008年版.北京：中国建筑工业出版社，2008.