立洲碾压混凝土拱坝动力响应特性分析  

A Dynamic Analysis of the Lizhou RCC Arch Dam

作　　者：郭曙光[1] 李艳玲[1] 吴震宇[1] 裴亮[1] 王滔[1] 

机构地区：[1]四川大学水力学与山区河流开发保护国家重点实验室,水利水电学院,四川成都610065

出　　处：《中国农村水利水电》2013年第8期121-124,126,共5页China Rural Water and Hydropower

摘　　要：依托西部地区立洲碾压混凝土拱坝,在对大坝进行三维静力分析的基础上,通过人工生成地震波,分析立洲拱坝自振频率和振型;采用有限元时间历程分析方法对该拱坝在不同工况下的地震响应特性进行数值分析,获得动位移、动应力等分布规律,并评价拱坝的抗震安全性,为工程设计提供参考依据。Taking Lizhou RCC arch dam in west area for example,based on three-dimensional static analysis,a study is made of generating artificially seismic waves,model shape and natural frequency of the arch dam.The time history method is adopted to analyze the response of arch dams under the condition of earthquake.The results reveal that the law of dynamic stress,dynamic displacement of the dam body;the aseismic safety of earth-arch dam is evaluated.Thus,it serves as a reference for the design of projects.

关 键 词：立洲拱坝 时程法 地震波 动力分析 

分 类 号：TK730.2[交通运输工程—轮机工程]