【摘要】 针对某实际工程,研究了塔体结构与水体的流固耦合力学模型。建立了考虑流固耦合作用的水塔结构力学分析有限元模型,采用ANSYS软件对水塔自振频率特性和地震时程反应下的位移响应进行了计算分析。计算结果表明:水体的晃动会影响结构的自振频率;水塔自身刚度愈大,动水压力对频率影响愈小;水塔储水深度增大,自振频率下降较快。水体的晃动可以减小地震影响下的塔体的位移反应。更多还原

【Abstract】 For an engineering practice,the fluid-structure interaction mechanical model is studied.A finite element model of a reinforced concrete water tower considering fluid-structure interaction is established.The natural frequency of the coupling system and the displacement of the time-history seismic response analysis are studied by software ANSYS.The solutions demonstrate that the liquid sloshing could affect natural frequency of the structure;the stiffness of water tower is stronger,the effect of hydrodynamic pressure is weaker;the depth of water is deeper,the natural frequency decreases more quickly.The sloshing of water in the tower can effectively reduce the seismic displacement response of tower structure.更多还原