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    楊春田
    (包頭鋼鐵設(shè)計(jì)研究院 014010)

[提要]  阪神地震造成神戶市10余座多層建筑在中間某一層坍落，其余各層基本完好。作者認(rèn)為：這種震害是由豎向地震作用造成的，其坍落層發(fā)生在豎向地震作用下的最大拉力層或最大壓力層。文中采用沖量原理計(jì)算豎向地震作用，對(duì)震害進(jìn)行了計(jì)算分析。
[關(guān)鍵詞]  多層建筑 斷層震害 分析

Multi-story buildings damaged due to the failure of an intermediate story were over ten after earthquke in Kobe City. The author's view is that this type of collapse is caused by the vertical earthquke action. The stories collapsed were occured at the ones where the tensile or pressure forces are maximum in those buildings. The principle of impact is adopted to calculate the vertical force, and the reason of the failure of an intermediate story is analyzed.
Keywords: multi-story  bulding; failure; intermediate  story; analysis