機械式定着工法を用いた外部柱・梁接合部の終局強度に与える接合部アスペクト比の影響に関する実験的研究

概要

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Static loading tests of exterior beam-column joints were conducted. The joints include mechanical anchors. The elevation view of joints depends on the member depth connected to them. In this paper, beam-column depth ratio (D_b/D_c) is defined as aspect ratio of joints. The ultimate strength of joints is already defined in recent design guideline, but the aspect ratio is not concerned in the formula which includes concrete strength and the horizontal effective area. On the other hands, there are many buildings including irregular shape joints such as wide-beam-column joints or deep-beam-column joints etc. Therefore, it is very important to estimate the ultimate strength of irregular joints. In this study, three types of aspect ratio, about 2.0, 1.0, and 0.5 are chosen to see the effect against the ultimate strength. Considering the process of joint failure, by applying the ultimate shear design formula of column instead of joints and also the ultimate bending formula assuming inclined critical face in the joint, the ultimate joint strength is estimated in this report.
一般社団法人日本建築学会の論文
2010-03-27