Abstract
Recycled Rubber Fiber-Reinforced Bearings (RR-FRBs) represent a suitable low-cost solution of isolation system especially for structures in developing countries. The numerical modelling of the cyclic behavior of RR-FRBs appears more challenging than for traditional High Damping Rubber Bearings (HDRBs), due to a significant softening response, associated with the axial-shear interaction. In this paper, an advanced hysteresis model, capable of capturing the nonlinear cyclic response of RR-FRBs is adopted and properly calibrated. Results of preliminary numerical analyses performed in OpenSees are shown and compared with the results of experimental tests on low-cost rubber bearings. The findings of this study could provide a new impulse to the application of low-cost rubber bases devices in current practice.
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