地震工程学报2017，Vol.39Issue(3)：434-442,9.DOI:10.3969/j.issn.1000-0844.2017.03.0435
基于强震监测记录的冶勒大坝动力反应特性初步分析
Preliminary Analysis of the Dynamic Response Characteristicsof Yele Dam Based on Strong Motion Records
摘要
Abstract
Yele Dam is a rockfill dam with an asphaltic concrete core wall and a maximum height of 124.5 m.The geological conditions around the area are fairly complex and present high seismic intensity.The earthquake monitoring station, which consists of nine strong motion seismographs, obtained 57 seismic response records from May 2005 to December 2014, including those of recent earthquakes, such as the Wenchuan earthquake, the Panzhihua earthquake, and the Lushan earthquake.Time domain and spectral analyses were carried out based on the monitoring data, and some dynamic response features of Yele Dam during these earthquakes were preliminarily summarized.The results showed that the dynamic response of the dam crest was amplified in most earthquakes and that the amplification factor obviously increased with decreasing PGA in the dam bottom.Because of differences in earthquake source characteristics and transmission routes, the spectral features of the dam''s seismic response during these earthquakes significantly differed.All of the records indicate that the earth and rockfill dam exert obvious filtering effects on earthquake waves.关键词
冶勒大坝/强震记录/沥青混凝土心墙坝/动力特性Key words
Yele Dam/strong motion records/rockfill dam with an asphaltic concrete core wall/dynamic response characteristics分类
建筑与水利引用本文复制引用
熊堃,何蕴龙,肖伟,刘俊林..基于强震监测记录的冶勒大坝动力反应特性初步分析[J].地震工程学报,2017,39(3):434-442,9.基金项目
长江科学院开放研究基金项目(CKWV2015213/KY) （CKWV2015213/KY）
