【摘要】 在考虑地基与储罐相互作用的情况下,采用有限元法对储罐在水平地震荷载作用下的液面晃动及储罐提离反应进行了分析。结果表明:罐内液体的晃动是长周期运动,其周期受地震动影响。无论是小体积罐还是大体积罐,在一定的地震烈度下均可以发生提离,而且储罐发生提离的时刻大多数是在地震动的峰值过后的一段时间内。大体积的储罐的提离明显小于小体积的罐。底板提离区域为月牙形。更多还原

【Abstract】 Finite-element method is used to analysis the liquid sloshing and the uplifting response of tank due to horizontal seismic ground motion in the case of considering the interaction of foundation and tank.The analytic results are shown as follows: the sloshing of liquid in tank is a long period motion and the period is affected by earthquake.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.Compared to the small tank,the uplifting of large tank is less obviously.The shape of lifting zone is crescent moon.The annular lifting displacement changes with time.更多还原