- 基于DDA和FEM耦合方法的碾压混凝土坝抗震安全性分析
- 点击次数：
- 发表时间： 2003-01-01
- 发表刊物： 大连理工大学学报
- 所属单位： 建设工程学部
- 期号： 6
- 页面范围： 793-798
- ISSN号： 1000-8608
- 摘要： Comprehensive research on the dynamic responses and the failure process of a high RCCD are performed using the discontinuous deformation analysis (DDA) coupled with finite element method (FEM). Some additional functions have been incorporated into the current DDA code, including coupling algorithm of DDA and FEM and an improved four-node isoparametric element generator for deformable elements. The corresponding program is developed based on the MS-WindowsTM computing environment. The results show that RCCD is safe under the design loadings. Furthermore, the ability of over loading and the failure mode are calculated and discussed. The results demonstrate that the failure of the RCC dams usually occurs at the top of the dams and the opening and sliding between the RCC layers will cause the failure of the RCC dams, and the effects of different earthquakes input on the dynamic response behaviors and the collapse pattern of the systems are significant.
- 备注： 新增回溯数据
