| Multi-dimensional Seismic Response Analysis of Base-Isolated Frame Structure with 3D Isolator |
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| 作者姓名： | XiongShishu HuangLiting ChenJinfeng SuJingsu |
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| 作者单位： | Xiong Shishu Huang Liting Chen Jinfeng Su Jingsu School of Civil Engineering and Mechanics，Huazhong University of Science and Technology，Wuhan 430074，China |
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| 摘 要： | INTRODUCTIONAs a new and effective method for withstandingthe horizontal component of earthquake motion on abuilding structure, the base isolation technique hascome to the engineering application phase ( Hu,1988). However, for some important buildings andfoundation facilities in an earthquake region, it is im portant to consider the effects of 3D aseismatic analy sis, including the vertical component, due to themulti dimensional characteristics of earthquakes (Suand …
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| 关 键 词： | 三维绝缘体 地震响应 夹铅轴承 反射器弹簧 |
Multi-dimensional Seismic Response Analysis of Base-Isolated Frame Structure with 3D Isolator |
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| XiongShishu HuangLiting ChenJinfeng SuJingsu.Multi-dimensional Seismic Response Analysis of Base-Isolated Frame Structure with 3D Isolator[J].Journal of China University of Geosciences,2005,16(1):66-71,78. |
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| Authors: | Xiong Shishu Huang Liting CHEN Jinfeng Su Jingsu |
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| Abstract: | The three-dimensional lead-rubber dish-spring bearing (3DB) is proposed in this paper. The 3DB is composed of lead rubber bearing (LRB) and dish-spring bearing (DSB) with damper in series. The 3DB put forward in this paper is effective in the resolution of difficulties in strong vertical capacity and vertical damping of three-dimensional isolation bearings. It effectively suppresses rocking motions as well. The analytical model and motion equations of multi-dimensional seismic responses of 3D base-isolated frame structures are established. Taking a five-storey frame structure as an example, an extensive simulation analysis is carried out. The results show that the 3D base-isolated structure with the proposed 3DB is effective in 3D isolation; it can reduce seismic responses by 50 % compared to a non-isolated structure. Therefore, the 3D isolation problem in building can be solved easily and effectively with the 3DB proposed in this paper. |
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| Keywords: | 3D base isolator multi-earthquake seismic responses lead rubber bearing dish-spring bearing |
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