Prediction Of Maximum Pressures During Uplift Acting On Laminated Rubber Bearings Supporting Base Isolated High-Rise Buildings Subject To Horizontal Seismic Ground Motion

摘要

We discussed characteristics of pressures and external forces acting on laminated rubber bearings supporting slender buildings subject to seismic horizontal ground motions by numerical simulations. A prediction method of maximum pressures acing on the rubber bearing during uplift caused by the horizontal ground motions was proposed from the above discussion and the sway-rocking model of which the rubber bearing does not degrade vertical stiffness under tension. The accuracy of the proposed method was examined with numerical simulations. It is found from the results that the proposed method method predicts the maximum negative pressure and the maximum positive pressure with enough accuracy.