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Han M，Zhao M H，Du H K，Jiang J W. 2022. Study on structural dynamic response under near fault ground motion with different time-frequency characteristics. Acta Seismologica Sinica，44（5）：911−919. DOI: 10.11939/jass.20220135
Citation: Han M，Zhao M H，Du H K，Jiang J W. 2022. Study on structural dynamic response under near fault ground motion with different time-frequency characteristics. Acta Seismologica Sinica，44（5）：911−919. DOI: 10.11939/jass.20220135
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Study on structural dynamic response under near fault ground motion with different time-frequency characteristics

  • Beijing Advanced Innovation Center for Future Urban Design，Beijing University of Civil Engineering and Architecture，Beijing 100044，China

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  • Received Date: July 22, 2022
  • Revised Date: August 24, 2022
  • Available Online: September 08, 2022
  • Published Date: September 14, 2022
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    • Abstract
  • The dynamic response of the anti-seismic structure and the seismic isolation structure Coupled equipment under the action of seismic waves with different time-frequency characteristics is studied, and the wavelet analysis of the test data of the five-layer steel frame shaking table model is carried out. The results show that: the dynamic response of the main structure is directly related to the time-frequency characteristics of seismic waves; due to the filtering effect of the main structure and seismic isolation bearings, the dynamic response of the equipment is significantly affected by the time-frequency characteristics of seismic waves, but there is no direct correlation; isolation can reduce the amplification coefficient of the equipment by moving the frequency of the device away from the frequency of the main structure; the variation trend of the acceleration of the main structure after coupling the equipment depends on the seismic wave energy distribution with different time-frequency characteristics.
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    • References (20)
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