- 空间相关非平稳地震荷载作用下的大坝风险分析
- 点击次数：
- 发表时间： 2014-01-01
- 发表刊物： 水利与建筑工程学报
- 所属单位： 建设工程学部
- 期号： 5
- 页面范围： 1-6,12
- ISSN号： 1672-1144
- 摘要： The risk analysis for dams is of great significance .The systematic risk analysis method for dams of different failure modes subjected to spatial correlative non-stationary seismic load was put forward .Firstly ,the time histories of the earthquake ground motion with the spatial correlation and non-stationarity characteristics were synthesized and the Mazars damage model was adopted to define damage value and anti-sliding stability coefficient of the dike head ,upstream gradi-ent surface and foundation surface of the gravity dam .Then ,the calculation method for the time of dam burst and the variations of breach flow was derived to analyze life and property loss .At last an example was applied to varify the appli-cability of the damage model .The results indicate that the proposed model can simulate every process of dam risks and roundly describe the integrity of dam risks .
- 备注： 新增回溯数据
