摘要
广东科学中心E区结构体型复杂,刚度和质量在竖向分布不均匀,导致结构扭转效应比较明显。本文结合结构设计提出了五种隔震控制方案。利用SAP2000有限元分析软件,对采用不同控制方案的结构进行了模态分析和时程分析,对比分析了不同方案的控制效果。分析结果表明,采用隔震技术不仅大大降低结构的地震反应,也使结构的扭转效应得到有效的控制。依据分析结果对该工程隔震支座的布置提出建议。
The district E of the Guangdong Science Center is a complex structure, in which the torsional response is significant due to stiffness and mass non-uniform distribution in vertical direction. Based on the original structural design, the five base-isolated schemes are proposed to solve the above problems. The modal analysis and the time- history analysis for different schemes with SAP2000 finite element analysis software are completed. The analysis results show that the structural earthquake responses can be obviously reduced, and the torsion effect can be controlled effectively. Finally, some suggestions for the placement of the isolated bearings are put forward.
出处
《地震工程与工程振动》
CSCD
北大核心
2009年第4期183-191,共9页
Earthquake Engineering and Engineering Dynamics
基金
广东省科技计划项目(2004B10101048)
关键词
隔震技术
扭转效应
时程分析
isolation technique
torsional response
time-history analysis
