SEISMIC RESPONSE ANALYSIS BY PLANE FRAME MODEL OF HIGH-RISE BUILDINGS SUBJECTED TO GROUND MOTIONS PREDICTED FOR UEMACHI FAULT

Abstract

Seismic response of two high-rise buildings, 75m and 150m height, subjected to ground motions predicted for Uemachi Fault was investigated by numerical analysis to estimate plastic deformation demand on steel structural members. From the result, the inelastic response of the structure under Uemachi Fault was larger than the response of conventional ground motions. The maximum ductility factor and cumulative plastic rotation of the story and the plastic hinges at beam ends are obtained. These values are same or more than maximum response obtained from predicted long-period ground motions for Tonankai earthquake.