仙台城本丸跡崖地形での微動観測・地震観測に基づく地盤震動特性と過去の地震における強震動スペクトルの推定

概要

論文の詳細を見る
It is important to grasp the ground vibration characteristics at topographically irregular site for the seismic design of structure which is constructed there. The authors have performed microtremor and earthquake observations at the geological cliff structure of the Sendai Castle site, where the traditional stone walls is now under repair at the large-scale. In this study, the ground motion amplification characteristics based on these observations are discussed. Spectral ratios of the top to the bottom are calculated for estimating the amplification. It was found from the both observations that the amplification is larger in the perpendicular direction to the cliff. Strong ground motions in the Sendai Castle site for past damage earthquakes have been predicted by using the amplification estimated from the records where were observed commonly to the Sendai Castle site and the building of Architectural Department in Tohoku University.
一般社団法人日本建築学会の論文
2001-03-20