水力发电2017，Vol.43Issue(8)：56-61,75,7.
不同地基模型对拱坝动力响应的影响
Effects of Different Foundation Model on the Dynamic Response of Arch Dam
摘要
Abstract
Based on viscous-spring artificial boundarv theory and wave field decomposition method of ground motion,the program for simulating viscous-spring artificial boundary and seismic load is developed by using the parametric language function of ANSYS software.Combined with practical arch dam engineering,the finite element model of dam-reservoirfoundation is established.Through implementing the viscous-spring artificial boundary and inputting corresponding seismic motion,the effects of radiation damping are analyzed.Compared with the calculation results of massless foundation model,it is found that the seismic response of dam will be in line with actual situation when the effect of radiation damping is considered.So the foundation model should be reasonably selected in seismic analysis of actual projects.关键词
拱坝/动力响应/粘弹性人工边界/无质量地基Key words
arch dam/dynamic response/viscous-spring artificial boundary/massless foundation分类
建筑与水利引用本文复制引用
李树山,刘祖军,贾明晓,解伟..不同地基模型对拱坝动力响应的影响[J].水力发电,2017,43(8):56-61,75,7.基金项目
贵州省水利厅科研项目(2012KT094) （2012KT094）
水利部堤防安全中心开放基金(201404) （201404）
