Research on the Dynamic Model of 2.5D Fluid Structure Interaction of Gravity Dam and Simulation of Seismic Stress Response

2018 International Conference on Civil, Architecture and Disaster Prevention

土木建筑工程

Li, Yiran^1^2 ; Xu, Menghua^2 ; Sun, Hao^2 ; Xiao, Genfeng^2

Hunan Province Key Laboratory of Key Technologies for Water Power Resources Development, Changsha, Hunan

410000, China^1

Institute of Civil Engineering and Transportation, South China University of Technology, Guanghzou, Guangdong

510640, China^2

关键词: Accurate calculations;    Concrete gravity dams;    Dynamic fluid structure interactions;    National economy;    Numerical experiments;    Numerical solution method;    Theoretical modeling;    Three-dimensional model;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/218/1/012092/pdf
DOI  :  10.1088/1755-1315/218/1/012092

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The seismic safety of the dam involves the safety of people's life and property, and even affects the overall safety of the national economy. One of the key of technical issues in this subject is the more complete fluid-structure interaction(fsi) theory and the more accurate calculation method. In order to solve the problem of dynamic fluid-structure interaction in gravity dam, a 2.5d semi-dynamic theoretical model and a numerical solution method are established by using fluid slice method. The numerical experiment of seismic sress response is compared with three-dimensional model. The results show that the stress response of the 2.5d semi-dynamic model of gravity dam can well reflect the fluid-structure interaction behavior and effect of seismic gravity of concrete gravity dam.