埋込み形式柱脚の最大耐力に関する実験的研究

概要

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Embedded type column-to-footing connections are often used in order to connect steel columns with reinforced concrete footing beams rigidly. In this paper, the test results on the fracture mode and ultimate strength of this type of column-to footing connections are presented for the case of exterior columns where the amount of concrete encasement is limited. Based on these test results, the mechanism of stress transfer, the fracture mode, and the ultimate strength of footing beams due to the punching shear from steel column embedded are discussed. The fracture mode of the footing beam can be classified into two types by the directions of loading for the case of exterior columns, and the ultimate strength can be analyzed using the criterion for punching shear fracture of footing concrete. The test results on the ultimate strength of the embedded type column-to-footing connections reported hitherto can also be analyzed satisfactorily by using the stress transfer mechanism and the criterion for the punching shear fracture of footing concrete obtained in this paper.
社団法人日本建築学会の論文
1985-01-30