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Volume 16 Issue 1
Mar 2005
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Shishu Xiong, Liting Huang, Jinfeng Chen, Jingsu Su. Multi-dimensional Seismic Response Analysis of Base-Isolated Frame Structure with 3D Isolator. Journal of Earth Science, 2005, 16(1): 66-71, 78.
Citation: Shishu Xiong, Liting Huang, Jinfeng Chen, Jingsu Su. Multi-dimensional Seismic Response Analysis of Base-Isolated Frame Structure with 3D Isolator. Journal of Earth Science, 2005, 16(1): 66-71, 78.

Multi-dimensional Seismic Response Analysis of Base-Isolated Frame Structure with 3D Isolator

Funds:

the National Natural Science Foundation of China 50278093

  • Received Date: 05 Apr 2004
  • Accepted Date: 15 Nov 2004
  • 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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  • Akiyama, H., 1985. Earthquake-Resistant Limit-State Design for Buildings. University of Tokyo Press, Tokyo
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    Kashiwazaki, A., Mita, R., Enomoto, T., et al., 1999. Three-Dimensional Base Isolation System Equipped with Hydraulic Mechanism. Transactions of the Japan Society of Mechanical Engineers, 66(648): 146-151
    Matsuda, A., Yabana, S., 2000. Evaluation of Mechanical Properties of Laminated Rubber Bearings Using Finite Element Analysis. Journal of Pressure Vessel Technology, 126(1): 134-140
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    Su, J. Y., Zeng, D. M., 2001. Research and Application of Seismic Isolation of Building in China. Earthquake Engineering and Engineering Vibration, 21(4): 94-100(in Chinese with English Abstract)
    Tajirlan, F. F., Kelly, J. M., Aiken, I. D., et al., 1990. Elastomeric Bearing of Three-Dimensional Seismic Isolation. Proceedings, 1990 ASME PVP Conference. In: PVP, Pressure Vessel and Piping Division. ASME, Nashville, Tennessee
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