長周期地震動に対する超高層建築物等の応答評価技術の高度化[個別重点]

摘要

Under long-period earthquake motions, deformation responses of super high-rise and seismically isolated buildings probably will be large by phenomena of resonance. In the study, the evaluation method for design earthquake motions is modified through considering long-period and long-duration effects. To make clear the distinct setting of ultimate performance, the calculation procedure of earthquake response and the effectiveness of response reduction for super high-rise buildings, etc., dynamic experimental researches and simulation analyses under the earthquakes are carried out.%超高層建築物や免震建築物等の固有周期の長い建築物は、長周期地震動に対して共振し、大きな応答変形が生じる可能性がある。また、多数回の揺れが繰り返される地震動におけ、建築物の限界状態は必ずしも明確ではなく、応答の状態予測や応答制御技術を用いる場合の目標の設定にも不確かさが存在する。