水力发电学报2011，Vol.30Issue(6)：133-137,5.
混凝土重力坝全坝段三维动力分析
Seismic analyses of concrete gravity dam with 3D full-dam model
摘要
Abstract
Seismic analyses of concrete gravity dams are usually idealized as two-dimensional structures.For gravity dams built in narrow valleys or on sites of high seismicity,however,interaction between adjacent dam blocks may influence their seismic responses significantly.In this paper,a three-dimensional full-dam FEM model are adopted to analyze the seismic responses of a concrete gravity dam,with consideration of the dynamic interaction between dam-foundation,dam-water,energy radiation and dynamic contact of monoliths,etc.Comparison are made between the numerical results of single-monolith model,massless-foundation full-dam model and full-dam model with or without contraction joints.The influences of various factors are discussed and engineering measures for improvement of aseismic ability of gravity dams are suggested.关键词
水工结构/地震响应/三维动力有限元法/混凝土重力坝/全坝段Key words
hydraulic structure/seismic responses/3D dynamic FEM/concrete gravity dam/full-dam model分类
建筑与水利引用本文复制引用
王海波,杨会臣..混凝土重力坝全坝段三维动力分析[J].水力发电学报,2011,30(6):133-137,5.基金项目
水利部公益性行业科研专项 （）
