612 直下型地震による大型鋼構造物の過渡応答挙動に及ぼす地震記録波形の影響(GS-3 計測・動的問題)

概要

論文の詳細を見る
The purpose of this study is to Investigate the fracture process in steel frame of a tall-building-model subjected to a strong near-source earthquake. In a previous paper, the simulation results of a tall-building-model had been presented when the input excitation was acceleration records observed at Rokkou Island during the great Hanshin-Awaji earthquake. In this paper, initial transient behavior of the same model corresponding to the acceleration records observed at Kobe Marine Observatory in the earthquake were analyzed. It was found that there were 40 points of columns at which stresses exceeded the yield stress of the column material in the initial transient stage. These results show very possibility that a high stress sufficient to lead the initiation of fracture can be reached in some parts of a tall building, in the initial transient stage.
社団法人日本機械学会の論文
2001-03-16