A Study on Base Isolation Performance of Magneto-Sensitive Rubbers

摘要: Recently, as large structures such high-rise building and long span bridge become lighter more flexible, the necessity of structural control for reducing excessive dynamic response due to seismic excitation is increased. In this study, a semi-active base isolation system using Magneto-Sensitive (MS) rubbers proposed effectively protect against earthquakes. MS Rubber class smart controllable materials whose mechanical properties change instantly by application magnetic field. To demonstrate performance device, compared Lead-Rubber Bearing (LRB) systems judged based on computed responses several historical The shown achieve notable decreases in drifts over comparable passive with no accompanying increase shears or accelerations imparted superstructure. perform better than system.