The Dynamic Stability Analysis of Shapai Arch Dam Affected by Wenchuan Earthquake

2018 International Conference on Civil and Hydraulic Engineering

土木建筑工程;水利工程

Li, X.N.^1 ; Shi, R.^1

State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'An University of Technology, Xi'an

710048, China^1

关键词: Dynamic stability analysis;    Inertia force;    Pseudostatic method;    Rigid body limit equilibrium method;    Safety coefficient;    Wenchuan Earthquake;    Working state;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/189/5/052020/pdf
DOI  :  10.1088/1755-1315/189/5/052020

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The sliding wedge method and the finite element rigid body limit equilibrium method are combined to analyze the dynamic stability of shapai arch dam affected by wenchuan earthquake, and compared with the pseudo-static method. Analysis indicates that the result got by the sliding wedge method and the finite element rigid body limit equilibrium method is slightly higher than the pseudo-static method of safety coefficient. Because the changes in the size and direction of the arch abutment thrust are taken into account in the sliding wedge method and the finite element rigid body limit equilibrium method, and coincidence coefficient is considered during applying seismic inertia force. So the method referred by this paper can reflect the aseismatic working state of the arch dam. Therefore, it provides a novel means of evaluating aseismatic safety.