Hydraulic steel gates are widely used in the high-intensity seismic areas of southwestern China.To ensure the safe and reliable operation under the combined effects of fluctuating water flow and seismic loads,it is necessary to analyze the seismic performance of gates at different water heads.The finite element model of a deep hole radial working gate of the Three Gorges Dam was established with ANSYS.Based on the dynamic time-history method,seismic response analysis was conducted to study the coupling effects of dynamic water pressure and seismic loads on the strength and stiffness of the gate under no water,and water heads of 20 m,40 m,60 m,and 85 m.The results show that the higher the water head,the greater the differences in maximum stress and radial displacement of the main beam of the gate with and without dynamic water,and the more significant the impact of dynamic water pressure on the seismic response of the gate.This study has reference significance for the seismic response analysis of similar hydraulic steel gates.
维普
万方数据