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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
【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。
【Abstract】 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;
【Key words】 Lizhou RCC arch dam; time history method; seismic waves; dynamic analysis;
【Key words】 Lizhou RCC arch dam; time history method; seismic waves; dynamic analysis;
- 【文献出处】 中国农村水利水电 ,China Rural Water and Hydropower , 编辑部邮箱 ,2013年08期
- 【分类号】TV642.4;TV312
- 【被引频次】1
- 【下载频次】68