Study on Displacement-Based on Seismic Design Method of Reinforced Concrete Core Walls

For some important building structures,the structural strength and displacement are verified to comply with the codes or standards limits during the performance-based seismic design process. The concrete core wall is the most widely used lateral force resisting system in high-rise buildings in China. The bearing capacity,stiffness and ductility must be detailed design to meet the higher seismic requirements. Using Park-Ang damage index D and capacity design method,base on the acceleration-displacement response spectrum and the basic principle of capacity spectrum,a displacement-based on seismic design method of reinforced concrete core walls is proposed. This method is considered to be useful to develop a more rational seismic design method because the method makes it possible to verify the seismic safely of a structure from both the force and the displacement. Given both the target displacement and the target acceleration of the structure,the seismic design is proceed by the proposed method. And the demand strength and displacement are obtained in any design level earthquake. In addition,in order to ensure that the members of the core walls structure have enough plastic deformation capacity,the reinforcement in detail is designed by capacity design method.