水力发电2017，Vol.43Issue(3)：44-48,5.
强地震作用下混凝土重力坝抗震安全评价
Seismic Safety Analysis of Gravity Dam under High Earthquake Intensity
摘要
Abstract
The stability and safety of gravity dam under strong earthquake is analyzed by using new ground motion parameters.The response spectrum method and time history analysis method are used to calculate the seismic dynamic response of structures respectively.The natural vibration characteristics are analyzed,the weak parts of structure are determined,and then effective seismic strengthening measures are put forward.The evaluation results show that there are small ranges of damage near dam heel and toe and the break slope,and the yield region passing through upstream and downstream is not formed.The safety performance of concrete gravity dam meets the requirements of new seismic parameters.The structure design of dam is reasonable and the dam can withstand high-intensity earthquake.关键词
混凝土重力坝/反应谱法/时程分析法/抗震安全评价Key words
concrete gravity dam/response spectrum method/time history analysis method/seismic safety evaluation分类
建筑与水利引用本文复制引用
丁柱,张立翔,段其品,王旭东..强地震作用下混凝土重力坝抗震安全评价[J].水力发电,2017,43(3):44-48,5.基金项目
国家自然科学基金资助项目(51279071) （51279071）
教育部博士点基金(优先)资助项目(20135314130002) （优先）
