Abstract:The traditional dynamic elastoplastic analysis method limits the results of studies on the seismic performance of buildings given that this approach fails to analyze the key nodes of the shear-wall transfer structure effectively. A method for analyzing the influence of the key nodes of shear-wall transfer structures on the seismic performance of buildings is proposed. The plane layout diagram of the shear-wall transfer structure is created, and the key nodes of the shear-wall transfer structure are determined. Then, the interstorey displacement and displacement angle of the key nodes and floor shear at the key nodes are analyzed. Elevating the key node position decreases the displacement of the maximum floor and the displacement angle. The fluctuation in the stiffness of the upper and lower floors of the building is obtained on the basis of differences in interstorey displacement, displacement angle, and force on the key nodes of different floors. Experimental results show that the proposed method can effectively and precisely analyze the seismic performance of buildings.