静加力試験による腰壁, たれ壁, そで壁付き鉄筋コンクリート柱の破壊性状と履歴曲線

概要

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Reinforced concrete columns of school buildings with the spandrel-walls cast simultaneously have been heavily cracked and damaged by the Tokachi-oki earthquake, in 1968. In this paper, ten small scale one story and two spans reinforced concrete frames, in which the shear span ratios h_0/D of three columns were different each other due to rising and hanging hight of the wall, were tested statically in order to investigate the crack development, the failing patterns and the hysteresis-loops. It was pointed out of the discussions on the test results and on the reasons of the damaged school buildings that the spandrel-walls should never be neglected as non-structural members in structural design, since the rigidities in elasticity, the ultimate strength and the failing patterns of the columns were grately affected by the insertion of such a wall in the frame. namely h_0/D.
社団法人日本建築学会の論文
1970-03-30