Harnessing the concept of inertial amplification, an amplifier coupled base isolator (IABI) is proposed in this paper. The seismic performance, terms story drift, shear reduction, has been compared with that classical (CBI) and inerter-based isolation system (Inerter-BI). A thorough analytical study, implementing rationals random vibration for harmonic Gaussian white noise conducted to identify...

This study proposes a class of hybrid isolation systems constructed by combining Buckling Restrained Braces (BRBs) with Rubber Bearings (RBs) or Lead (LRBs) for mitigating the seismic responses in bearing-supported bridges under strong earthquakes. Firstly, two different (RB–BRB and LRB–BRB) were preliminarily designed based on energy-conservation concept case bridge Y-shaped piers, which can m...

The aim of this paper is to assess the effectiveness nonlinear viscoelastic damping in controlling base-excited vibrations. Specifically, focus on investigating robustness base isolation performance system response due a wide set possible excitation spectra. dynamic model derived study simple structure whose provided via Rubber-Layer Roller Bearing (RLRB) (rigid cylinders rolling rigid plates w...

Abstract. Strong seismic excitations can induce considerable displacements in base-isolated structures. These may turn cause damage to the isolation system or impacts against adjacent structures event of an insufficient gap. A strategy reducing be achieved through interposition, between isolated structure and structures, deformable dissipative devices, called bumpers. In this paper, response si...