基于ANSYS的重力坝坝体-地基-库水流固耦合地震响应分析  

Seismic Response Analysis of Flow-structure Coupling of Gravity Dam Body-foundation-reservoir Based on ANSYS

作　　者：杨鹏辉 杨旭 陈振宙 乔伟毅 Yang Penghui;Yang Xu;Chen Zhenzhou;Qiao Weiyi(Department of Postgraduate,Heilongjiang University,Harbin,China)

机构地区：[1]黑龙江大学研究生学院,黑龙江哈尔滨

出　　处：《科学技术创新》2024年第22期133-136,共4页Scientific and Technological Innovation

摘　　要：随着我国水利事业的不断发展,建立了许多大型挡水建筑物,例如混凝土重力坝等;而我国同时是一个地震高发国家,因此对于混凝土重力坝的抗震设计不可忽视。本文通过ANSYS有限元软件对工程实例以附加质量法、流固耦合法两种方法分别建立坝体-库水-地基相互作用有限元模型,分别进行模态分析以及地震时程分析,结果表明流固耦合法对于抗震设计相较于附加质量法更有利于抗震设计。With the continuous development of water conservancy in China,many large-scale water-retaining structures have been established,such as concrete gravity dams.At the same time,China is a country with a high incidence of earthquakes,so the seismic design of concrete gravity dams cannot be ignored.In this paper,the finite element model of dam-reservoir water-foundation interaction is established by ANSYS finite element software for engineering examples,and the modal analysis and seismic time history analysis are carried out respectively,and the results show that the fluid-structure interaction method is more beneficial to seismic design than the additional mass method.

关 键 词：重力坝 坝体-地基-库水 模态分析 地震分析 ANSYS 

分 类 号：TV642[水利工程—水利水电工程]