Abstract
In this study, based on the results of the experiments, a model for the laminated rubber bearings is proposed. At first, to understand the mechanical property of rubber bearings, uni-axial and bi-axial loading experiments are done over a wide range of shear strain. Then the Ozdemir's elasto-plastic model is extended to accommodate the experimental results by adding a nonlinear spring, isotropic hardening and stiffness degradation. A simulation by this model can reproduce the load-displacement relation of the uni-axial and bi-axial experiments well. The performance of this model for predicting the seismic response is verified by comparing the simulation with the results of hybrid seismic response experiment of the rubber bearings.
