The mechanical properties of multi-lead rubber bearings(MLRBs)were investigated by experiment and finite element analysis.First,the vertical stiffness,horizontal stiffness and yielded shear force were tested for four MLRB specimens and two specimens of the single-lead rubber bearings(SLRBs).Then,the MLRBs were modeled by the explicit finite element analysis software ANSYS/LS-DYNA,in order to evaluate the horizontal force-displacement hysteretic curves under static vertical and dynamical horizontal loadings.The disagreement between the tested and theoretical values was less than 11.4%,and MLRBs and SLRBs were similar in vertical stiffness,pre-yield stiffness and yield stiffness.
展开▼
