引入SPH方法的储液罐地震反应分析

Study on seismic response of liquid storage tank with SPH method

针对球形储罐,考虑其液固耦合作用,通过ABAQUS软件建立1 000 m3球罐有限元模型并对其进行地震反应的数值仿真分析。通过时程分析图及表格中的数据对比结果表明:与传统计算方法相比,在考虑液固耦合作用的情况下,球形储罐的顶点位移、竖向支反力以及支柱底部剪力等方面衰减较快,并且在数值上也小很多。

Considering the coupling of fluid-solid interaction in the case of spherical tank structure,a finite element model of a 1 000 m^3 spherical tank was established by ABAQUS software and the result of the numerical simulation of its seismic responses analysis. It is shown in the results that under the case of considering the coupling of fluidsolid interaction,there is rapid attenuation of the top displacement,the base shear force and the vertical force. Moreover,the values are more smaller as well.