Seismic Dynamic Damage Analysis of High-Rise Water Intake Tower

Abstract

Intake tower is as important as other buildings in water conservancy and hydropower projects. It involves the normal operation of the entire water diversion and discharge system. Therefore, the anti-seismic safety of intake tower is very important to the safety of water control project. This study simulates the seismic response of an intake tower, both with and without concrete damage. We employ the constitutive model for elastoplastic concrete damage and combine it with actual water intake tower engineering data to establish a three-dimensional finite element model for the water intake tower body and foundations using ABAQUS software. The results show that the stress and strain of the intake tower are higher when concrete damage is considered. Tensile and compressive damage of the tower body predominantly occurs at the junction between the tower body and the backfilled concrete. As the earthquake duration increases, the degree and extent of water intake tower damage gradually increase. Therefore, the safety of the intake tower is reduced, but it is more in line with the actual project. These research results provide important scientific insights for high-rise intake tower project planning in areas prone to strong earthquakes.