哈尔滨工程大学学报Issue(1)：116-122,7.DOI:10.11990/jheu.201506053
辽宁葠窝水库溢流坝段裂缝状态地震反应分析
Seismic response analysis of the crack status of an overflow dam section of the Liaoning Shenwo reservoir
摘要
Abstract
This study investigated the concrete gravity dam of the Liaoning Shenwo reservoir using a concrete disper⁃sion crack constitutive model to simulate the process of cracking and breaking of the dam during a strong earth⁃quake. The coupled Lagrangian⁃Eulerian finite element analysis method was used to describe the nonlinear effects of dynamic coupling of the reservoir water, dam, and bedrock. A 3D finite element model was used for the seismic re⁃action analysis of the overflow dam section. By inputting an El Centro wave into the numerical model and measuring the changes in the reservoir water level, the response law and damage characteristics of the overflow dam section under strong earthquake conditions were analyzed. This was used to evaluate the safety of the overflow dam during strong earthquakes. Cracking occurred at the dam heel, dam toe, bracket area, and the junction of the pier and the overflow weir because of the existing crack in the dam. Because of the existing cracks, concrete aging, and structur⁃al deterioration, the overall stiffness of the piers has reduced significantly, the strength of some parts of the dam has been weakened, and the seismic response of the overflow dam section has increased significantly.关键词
强震反应/库水-坝体-基岩相互作用/裂缝状态/辽宁葠窝水库/地震反应分析Key words
strong earthquake response/reservoir water-dam-bedrock interaction/crack status/Liaoning Shenwo reservoir/seismic response analysis分类
建筑与水利引用本文复制引用
于程一,凌贤长,唐亮,孔锦秀,丛晟亦,宋曰良..辽宁葠窝水库溢流坝段裂缝状态地震反应分析[J].哈尔滨工程大学学报,2016,(1):116-122,7.基金项目
国家自然科学基金资助项目（51378161和51108134）；黑龙江省应用技术研究与开发计划基金资助项目（ GZ13A009）；国家973计划基金资助项目（2012CB026104）． （）
