曲げモーメントとせん断力をうける角形鋼管柱の埋込み形式隅柱柱脚部における力学性状

概要

論文の詳細を見る
Embedded type column base connections using square steel tubes have recently come into wide use in steel construction ; however, the mechanical characteristics for exterior columns (corner columns) have not been sufficiently clarified. A total of 42 steel column bases were tested. The following variables were studied : (1) embedment length, (2) end distance, (3) U type reinforcing bars, (4) tie spacing, (5) presence or absence of anchor bolts, stud dowels or anchor reinforcing bars and (7) loading system. The results of this study may be summarized as follows : (1) When the end distance is 2D (D : Column Depth) or greater in case of the 2.5D embedment length, mechanical characteristics similar to those of interior columns can be assumed. (2) In the corner columns, the mechanical characteristics differ under the loading directions when the end distance is 1D or less than 1D. The concrete outside the column requires reinforcement at the top of the footing and near the location of the base plate. (3) When the embedment length is less than 2D in case of the 1D end distance, the load-displacement curves show slip shapes with small energy dissipation.
社団法人日本建築学会の論文
1988-06-30