个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 工程抗震研究所副所长
性别:男
毕业院校:大连理工大学
学位:博士
所在单位:水利工程系
学科:水工结构工程. 防灾减灾工程及防护工程. 岩土工程
办公地点:辽宁省大连市高新园区大连理工大学四号实验楼101
联系方式:xubin@dlut.edu.cn
电子邮箱:xubin@dlut.edu.cn
A three-dimensional elasto-plastic dynamic response procedure for concrete-faced rockfill dams
点击次数:
论文类型:期刊论文
发表时间:2018-08-10
发表刊物:INTERNATIONAL JOURNAL OF DISTRIBUTED SENSOR NETWORKS
收录刊物:SCIE
卷号:14
期号:8
ISSN号:1550-1477
关键字:Generalized plasticity model; elasto-plastic dynamic response procedure; face slab; concrete-faced rockfill dam; joints
摘要:Equivalent linear dynamic analysis is the primary method of analysis for concrete-faced rockfill dams during earthquake. However, this method cannot be directly used to estimate permanent deformation during earthquake, which is important to evaluate the dynamic safety of concrete-faced rockfill dams. To bridge this gap, an elasto-plastic dynamic response procedure based on finite element method is presented to estimate the construction, impoundment, and dynamic characteristics of concrete-faced rockfill dams. This procedure involves a generalized plasticity model for rockfill materials and an ideal elasto-plastic model for interface between concrete face slab and rockfill material. The construction, impounding process, and seismic behavior of a 150-m-tall concrete-faced rockfill dam were simulated using seismic motion based on Chinese code for seismic design of hydraulic structures of hydropower project with the peak ground acceleration of 0.3g as an excitation to validate the procedure. On the basis of the numerical simulation results of the step-by-step construction, reservoir impoundment and seismic response of a concrete-faced rockfill dam, dam settlement, joint deformation, stress, and deformation of slab were analyzed. The results indicate that the dam settlement and deformation of joint can be directly obtained by the procedure during earthquake. The construction, impoundment, and seismic analysis could be considered in one procedure.
上一条:Influence of strong motion duration on the seismic performance of high CFRDs based on elastoplastic analysis
下一条:Stochastic seismic response and stability reliability analysis of a vertical retaining wall in front of the pumping station of a nuclear power plant using the probability density evolution method