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作者:

Zhao, Yamin (Zhao, Yamin.) | Su, Jingyu (Su, Jingyu.) (学者:苏经宇) | Zhou, Xiyuan (Zhou, Xiyuan.) | Sui, Yunkang (Sui, Yunkang.)

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摘要:

Combined disk spring bearing (DSB) for vertical isolated building is introduced in this paper. Vertical stiffness and damping performance of the DSB is studied through testing under static and dynamic loading. The experimental results show that DSB had good property of less vertical stiffness and the vertical damping ratio was about 20%. Shaking table tests of the 1/2 scale fixed-base model and the DSB vertical isolated model were compared to confirm the effect of the vertical isolation device. Results show that the DSB can isolate vertical earthquake energy remarkably. With the acceleration amplitude increased, the vertical displacement of the DSB model occurred on the vertical isolation layer, and the inter-story deformation of the superstructure changed slightly. The acceleration responses of DSB model decreased more than 50% and the displacement responses decreased more than 40% under seldom earthquake input, which confirmed that DSB could decrease the seismic responses obviously. Finally, the numerical analysis of earthquake response to the model structure is also performed by finite element analysis method.

关键词:

Damping Dynamic loads Earthquakes Finite element method Numerical methods Seismic response Springs (components) Stiffness

作者机构:

  • [ 1 ] [Zhao, Yamin]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China
  • [ 2 ] [Su, Jingyu]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China
  • [ 3 ] [Zhou, Xiyuan]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China
  • [ 4 ] [Sui, Yunkang]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China

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来源 :

Journal of Building Structures

ISSN: 1000-6869

年份: 2008

期: 6

卷: 29

页码: 99-106

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