Analysis of Spring Limiting Deformation of Story Isolation Layer under Near-fault Ground Motion
Han Miao;Zhu Ai-dong;Zhang Wen-hui;School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture;
The near-fault ground motion may bring about the isolated structure excessive deformation at the isolation layer so that it will easily lead to a lateral overturning instability or support damage of the structures. The soft limiting deformation is used for the protection of the structures at the isolation layer,and the SAP2000 is used to analyze the limiting displacement dynamic responses of the isolated structure while isolation layer is disposed on the first floor,the fourth floor,the seventh floor of an 8 story reinforced concrete frame structure by inputting near-fault rare seismic waves. The influences to the isolation layer and the structure dynamic responses caused by the different reserved spaces and limiting stiffness of the limiting devices are analyzed at the same time.