Abstract

In the present study, the elevated concrete water tower is used as the research object. In order to investigate the ground motion response law of the elevated concrete water tower with the near-field Chichi wave, the near-field no-pulse Tehachapi Pump wave and the far-field long-period Tianjin waves when the liquid–solid–soil interaction (LSSI) is considered. And the finite element calculation model of the elevated concrete water tower and foundation with different liquid storage rate was established and the dynamic time history analysis was also conducted. The calculation results demonstrate that when considering LSSI, the elevated concrete water tower exhibits different response characteristics under the action of three types of seismic waves. Under the action of pulsed seismic waves in the near field, the seismic response of the elevated water tower structure is the most intense, followed by the far-field long-period seismic wave, and the response in the near-field no-pulse seismic wave remains the least.

摘要

本研究以高架混凝土水塔为研究对象。为研究高架混凝土水塔在液-固-土作用下的近场奇池波、近场无脉冲特哈查皮泵波和远场长周期天津波的地震动响应规律。考虑了交互作用（LSSI）。并建立了不同储液率下高架混凝土水塔和地基的有限元计算模型，并进行了动态时程分析。计算结果表明，考虑LSSI时，高架混凝土水塔在三种地震波作用下表现出不同的响应特性。在近场脉冲地震波的作用下，