大连理工大学学报2012，Vol.52Issue(6)：855-861,7.
重力坝纵缝非连续接触地震反应分析
Seismic response analyses of gravity dam considering discontinuous contact of longitudinal joints
摘要
Abstract
The anti-seismic capacity of concrete gravity dam with longitudinal joints is preliminarily studied by using a nonlinear dynamic time-history procedure with overload response analysis.Smeared cracking model is employed to simulate the cracking of concrete during strong earthquake,and the mechanical behavior of the longitudinal joint under dynamic load is simulated by contact model based on penalty method.Comparing with the results of calculation model without longitudinal joints,it is found that the longitudinal joints have changed the distribution of stress in dam and the anti-seismic capacity of the dam is reduced.Based on the analyses of the cracking ratio and the anti-slide safety factor,the maximum anti-seismic capacity of the studied dam with longitudinal joints is evaluated as 0.6g.关键词
重力坝/弥散裂缝模型/纵缝/接触模型Key words
gravity dam/smeared cracking model/longitudinal joints/contact model分类
建筑与水利引用本文复制引用
李浩瑾,李俊杰,康飞,张勇..重力坝纵缝非连续接触地震反应分析[J].大连理工大学学报,2012,52(6):855-861,7.基金项目
国家自然科学基金资助项目 （）
中央高校基本科研业务费专项资金资助项目（DUT11RC（3）38） （）
