1500m^3水塔流固耦合时程分析

Time history analysis of 1500m^3 water tower as fluid-structure coupling system

根据工程实例,研究了塔体与水体流固耦合的边界条件和运动方程,建立水塔体系的流固耦合有限元模型。通过施加天津波与E1Centro波进行地震激励,借助ANSYS软件分析了水体晃动对水塔地震位移响应的影响。计算表明:水体的晃动可以减小地震对塔体的位移响应,当蓄水深度增大时,减震效果明显。

For an engineering practice, the FSI boundary conditions and equations of motion is studied. A finite element model of water tower considering fluid-structure interaction is established. Tianjin wave and E1 Centro wave are applied, the displacement of the time-history seismic response analysis are studied by software ANSYS. can effectively reduce the seismic damping effect is obvious. The solutions demonstrate that the response of tower structure. When sloshing of water in the tower the water depth increases, the