【摘要】 对模型储罐进行振动台试验,测试储罐的位移地震响应,在此基础上运用大型有限元分析软件ADINA对模型储罐地震动响应进行了底板提离数值仿真分析。分析结果表明:无论是小体积罐还是大体积罐,在一定的地震强度下均可能发生提离,而且储罐发生提离的时刻大多数是在地震波的峰值过后发生的。底板提离区域为月牙形,提离位移沿环向的分布随不同的时刻改变。更多还原

【Abstract】 In this paper,model tank is tested on seismic desk and its displacement response is tested.Then finite-element analytic software is used to analysis tank base lifting under seismic response.Analytic results show as follows: all the tanks may lift under certain seismic intensity,and the time of uplifting is after the peak value of seismic ground motion in most cases.The shape of lifting zone is crescent moon.The annular lifting displacement changes with time.更多还原