Non-iterative computational model for fiber-reinforced elastomeric isolators

In this paper, time history analyses are carried out on a structure seismically isolated with fiber-reinforced elastomeric isolators (FREIs). The lateral response of the isolators is simulated using two modeling techniques, the Backbone Curve model, which combines a dashpot with a nonlinear elastic spring, and a new proposed model, named Pivot-Elastic. This proposed model combines a bilinear pivot hysteretic model with a nonlinear elastic …