Nonlinear Analysis Model Development of Seismic Isolator Using Horizontal Seismic Excitation Responses of Isolated Test Structure

면진시험구조물의 수평가진응답을 활용한 면진장치 비선형 해석모델개발

The seismic excitation test results of an isolated test structure for artificial time history excitation are summarized for structural modeling of the isolated structure and isolation bearing. Based on the actual dynamic behaviors and the seismic responses of the test model, linear and bilinear models for isolators are suggested. Seismic analyses are performed and compared with those of the seismic tests. The developed bilinear model is well applicable only to large shear strain area of isolators.