(1 中国建筑西南设计研究院有限公司，成都 610081； 2 北京工业大学，北京 100124)

［摘要］   通过不同的计算方法，不同的地震激励方向，单维与多维地震响应等内容的研究，探讨了常州体育馆椭圆形索承单层网壳结构在地震作用下的内力及位移响应的特点，特别对比了屋盖单体模型与屋盖同下部混凝土框架结构组成的整体模型的地震响应。分析结果表明，椭圆形索承单层网壳短轴杆件的地震响应大于长轴杆件的，多数杆件在多维地震下的反应大于单维地震下的，应采用整体分析模型计算屋盖结构的地震响应。
［关键词］   常州体育馆；   索承单层网壳；   反应谱；   时程分析；   虚拟激励；   多维地震响应；   整体模型

Earthquake resistance analysis on the cable-supported dome of Changzhou Gymnasium
Feng Yuan1, Xia Xun1, Cao Zi2, Wang Liwei1, Xue Suduo2
(1 China Southwest Architectural Design and Research Institute Co., Ltd., Chengdu 610081, China；
2 Beijing University of Technology, Beijing 100124, China)
Abstract:Through comparison of different calculation methods, different directions of earthquake excitation, one-dimensional and three-dimensional seismic analysis and other studies, the seismic responses of the elliptical cable-supported dome used in Changzhou Gymnasium were investigated. The seismic responses of the separated roof model and the integral model of the whole building were also compared. The results show that members at minor axis bear higher seismic response than those at major axis, three dimensional seismic response is higher than one-dimensionals, and analysis using integral model of the whole building is preferred than the separated roof model.
Keywords:Changzhou Gymnasium; cable-supported dome; response spectrum; time-history analysis; virtual excitation; three-dimensional seismic analysis; integral model
国家科技支撑计划子课题(2006BAJ13B01-03)，北京市教委科技发展计划项目(KM200710005031)。
作者简介：冯远，教授级高级工程师，Email：xnyfy@vip.163.com。

参考文献
［1］   崔晓强, 郭彦林. 弦支穹顶结构的抗震性能研究［J］. 地震工程与工程振动, 2005，25(1)：67-75.
［2］   冯远, 夏循, 王立维，等.常州体育馆会展中心结构设计［J］.建筑结构，2010，40(9)：35-40.