高地震烈度下金安桥碾压混凝土重力坝动力分析  

Dynamic analysis on Jin'anqiao RCC Gravity Dam under high seismic intensity

作　　者：常晓林[1] 位敏[1] 高作平[1] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072

出　　处：《水利水电技术》2005年第7期57-59,63,共4页Water Resources and Hydropower Engineering

摘　　要：在9度设防烈度下,按《水工建筑物抗震设计规范》(DL5073—2000)的标准和方法对金安桥碾压混凝土重力坝进行三维有限元动力计算,分析其地震动力响应,并按最不利原则进行静动应力组合,采用承载能力极限状态式校核其抗震强度和稳定安全。计算结果表明,金安桥碾压混凝土重力坝满足规范抗震设防要求,是安全可靠的。According to the criterions and methods given in Specifications for Seismic Design of Hydraulic Structures（DL5073-2000） ,the dynamic response of Jin＇anqiao RCC Gravity Dam is calculated with 3D finite element method under the seismic fortification intensity of 9 degree, in which the combination of both the static and dynamic stress states is made with the principle for extreme condition, and then the aseismic strength and the seismic stability are checked with the formula for the bearing capacity under extreme condition. The result indicates that the seismic fortification requirement for the dam can be met and it is safe and credible.

关 键 词：碾压混凝土 重力坝 动力分析 有限元法 抗震安全 

分 类 号：TV642[水利工程—水利水电工程]