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作者:

Xue, S. (Xue, S..) | Shan, M. (Shan, M..) | Li, X. (Li, X..) | Huang, F. (Huang, F..)

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Scopus PKU CSCD

摘要:

In order to investigate the changes of earthquake responses in the single-layer cylindrical latticed shell following using the HDR (high damping rubber) bearings, and the influences from earthquake wave-passage effect, a series of shaking table experiments of a single-layer cylindrical latticed shell shrunk model were conducted. The HDR bearings were installed at the top of the supporting columns. The visual wave velocity of earthquake records inputting to the structural model included infinite, 1000 m/s, 500 m/s and 250 m/s. The dynamic responses such as acceleration, displacement and strain of members were examined. The results show that high-position seismic isolation with HDR bearings could prolong the vibration period of latticed shell efficiently and reduce 1 to 3 degrees earthquake response of structure upon isolation layer. The latticed shell tends to produce whole motion following the application of the rubber bearings. The structural responses tend to be enlarged along the propagative direction of earthquake and the shear deformations of rubber bearings increase observably at the earthquake wave outlet under non-consistent excitation. Wave passage effect should be taken into account as consistent excitation may cause unsafe estimation. © 2017, Science Press. All right reserved.

关键词:

HDR (high damping rubber) bearing; High-position seismic isolation; Multi-support excitations; Shaking table experiment; Single-layer latticed cylindrical shell

作者机构:

  • [ 1 ] [Xue, S.]Spatial Structures Research Center, Beijing University of Technology, Beijing, 100124, China
  • [ 2 ] [Shan, M.]Spatial Structures Research Center, Beijing University of Technology, Beijing, 100124, China
  • [ 3 ] [Li, X.]Spatial Structures Research Center, Beijing University of Technology, Beijing, 100124, China
  • [ 4 ] [Huang, F.]College of Civil Engineering, Fuzhou University, Fuzhou, 350108, China

通讯作者信息:

  • [Shan, M.]Spatial Structures Research Center, Beijing University of TechnologyChina

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来源 :

World Earthquake Engineering

ISSN: 1007-6069

年份: 2017

期: 3

卷: 33

页码: 24-33

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