Research On Seismic Performance Of Steel Plate Shear Wall-Core Tube Structure With Strengthened Story

With economic development,increasing population and decreasing living space, we have continued to increase the height of the building.And the change resulting in the role of lateral force is relatively larger and the structure of the lateral displacement become larger and larger.In the structural design of high-level,to find the best option to control the structure lateral deformation under the wind loads and seismic loads,has been one of the important issues.hi recent years,some experts and scholars put forward used the level of strengthening the structure in the frame-core tube,which can strengthen the pillars inside the cylinder and the external common role and control its lateral deformation purposes.Set the strengthening layer is an effective method to reduce the lateral deformation of the structure;However,under earthquake loading,the method can rise the level of structural stiffness and internal forces of mutation,lead to form a weak layer,so that mechanisms of damage to the structure of a "strong column-weak beam" and "strong shear -weak bending" mechanism for the ductile yield.In this paper,the object of study is a cost-effective new anti-side power system-with steel wall joints,which has been using in Japan as a support or enhance layer.But the system has not been incorporated into the design software.In this article,there also has some research and development,and provide a certain amount of reference to the future of software development.The paper applied the FEA analysis software SAP2000 to set Tree-dimensional FEA analysis modal and adopted dynamical time history analytic method to make elastic-plastic time history analysis on the mode.This thesis gets the reacting rule of the structural displacement and the internal force when influenced by the earthquake and find out the possible position of stress converging and plastic distortion converging and other weak points.In order to strengthen the restrictive structural corrugated steel bar in the weak parts and improve the anti-earthquake quality of the structure.Finally,a new type of combination structure system is proposed,and the anti-seismic performance analysis is completed.