過載荷梁をもつ2スパン3層骨組の層崩壊生成過程に関する実験的研究

概要

論文の詳細を見る
This paper presents the experimental study on developmental collapse of story or stories in steel frame model of two span and three-story frame modeled as a prototype to tall building. The model was subjected to constant gravity load at the head of third story columns and to the overloaded beam in the middle of left span in the first story and right span in the second story. This was then, quasi-statically subjected to lateral force displacement and to reversed cyclic displacement with initial constant amplitude at the top and then with gradually increased value. Three sets of experiments were performed. The deformation behaviors occurred in the steel models are concluded as, follows: Firstly incremental beam mechanisms do occur in the overloaded beams and their large deflections are inevitable. Consequently, the deflection of waist-sway type on sub-assemblage in the neighborhood members also develop and the sway deflections grow up more and more large which then, will undergo several stoty collapses.
一般社団法人日本建築学会の論文
2007-03-20