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| 基础隔震体系地震反应特征与方案优选 | |
| 引用本文： | 毛利军,李爱群,艾军.基础隔震体系地震反应特征与方案优选[J].南京航空航天大学学报,2005,37(4):504-508. |
| 作者姓名： | 毛利军 李爱群 艾军 |
| 作者单位： | 1. 南京航空航天大学航空宇航学院土木系,南京,210016;东南大学土木工程学院,南京,210096 2. 东南大学土木工程学院,南京,210096 3. 南京航空航天大学航空宇航学院土木系,南京,210016 |
| 基金项目： | 北京工业大学工程抗震与结构诊治北京市重点实验室开放研究课题资助项目;江苏省博士后科研资助计划资助项目. |
| 摘 要： | 隔震建筑采用水平剪切型模型，隔震体系为橡胶垫、滑移和并联基础隔震系统，隔震层模型采用双线性滞回模型。研究了在不同隔震层屈服剪力和隔震周期时，不同隔震系统对结构地震反应的影响。研究表明，对于规则型隔震结构，经合理设计的并联隔震结构兼具橡胶垫和滑移隔震体系的优点，为优选方案。以一实际工程为例，分析了竖向不规则隔震结构的地震反应特点。研究表明，对竖向不规则结构，橡胶垫隔震体系为优选方案。 |
| 关 键 词： | 基础隔震 地震反应 双线性滞回环 层间剪力 方案优选 |
| 文章编号： | 1005-2615(2005)04-0504-05 |
| 收稿时间： | 2004-12-10 |
| 修稿时间： | 2004年12月10 |
Seismic Response Characteristics and Optimal Scheme in Base-Isolation Systems |
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| Mao Li-jun,Li Ai-qun,Ai Jun.Seismic Response Characteristics and Optimal Scheme in Base-Isolation Systems[J].Journal of Nanjing University of Aeronautics & Astronautics,2005,37(4):504-508. | |
| Authors: | Mao Li-jun Li Ai-qun Ai Jun |
| Abstract: | The isolation building is modeled as a shear type structure with lateral degree-of-freedom on each floor. The isolation systems consist of elastomeric, sliding and resilient-friction base isolation (R-FBI) systems. The isolators are modeled by bi-linear hysteretic models. The influence of the isolation systems on the response of the isolation structure is studied under the variation of parameters, such as isolator yield force and isolation time period. It is observed that a reasonable designed R-FBI structure is an optimal scheme for the typical regular structure having advantages of elastomeric and sliding systems. The seismic response characteristics of vertical irregular base-isolated structures are analyzed by a practical example. Result shows that the elastomeric system is an optimal scheme for the vertical irregular structure. |
| Keywords: | base isolation seismic response bi-linear hysteresis shear force between stories optimal scheme |
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