Analysis of Damage Process in High Arch Dam Subjected to Strong Earthquake

摘要

In the paper, the nonlinear seismic response of Shapai arch dam subjected to strong earthquake is analyzed by FEM time history analysis method. In the analysis, several comprehensive influencing factors, including infinite foundation radiation damping, damage of concrete, the contact nonlinearity of the transverse joints and sliding surface, and the nonlinearity of fractured rock on dam foundation, are taken into account to study their effects on seismic safety of arch dam. Through a study of damage extent in the arch dam, aseismic safety of the dam is evaluated.