Abstract:This paper proposes a simple mechanical on-off damper that can change the damping force depending on the response displacement and response velocity. The on-off damper reduces the damage to seismic-isolated structures that undergo excessive deformation during huge earthquakes, without lowering the performance of the seismic-isolation system during design earthquakes. A numerical analysis method for baseisolated structures in which the isolation layer is equipped with our onoff damper, and also considers collis… Show more
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