鉄骨鉄筋コンクリート柱脚部の力学性状に関する実験的研究 (その 2) : 曲げモーメントを受ける柱脚の剛性および耐力

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In order to clarify the mechanism of stress transfer developed through the column base connections between S. R. C. columns and their footings, the specimens of various types are tested under bending. In this paper, an outline of tests is described, and experimental results for 15 specimens are presented and discussed. These results are compared with experimental results in the previous paper (part 1) and are discussed on how effects are observed on the strength and deformation behaviour by each test variable. Suggestions for the practical design are made. The main results derived from the analysis on these experiments are as follows : (1) Significant effects are observed on the measured yield strength by the flexural deformations of base plates or the looseness between anchor bolts and nuts, but the measured yield strength can be nearly estimated by the yield strength calculated with the method of this paper. (2) When base plates is the proper thickness and the moment resistance of anchor bolts is closer to the moment resistance of the steel column, the measured values of the ultimate strength on the column base connections show a tendency to increase in comparision with the corresponding calculated values. (3) In considering the allowable design strength of S.R.C. column bases, it may be calculated according to the equation of the cumulative strength on the general columns or beams established already, but in "the current standard of S.R.C. structures" of A.I.J., further investigation should be necessary to the method of the stress distributions on the column base connections.
社団法人日本建築学会の論文
1980-01-30

鉄骨鉄筋コンクリート柱脚部の力学性状に関する実験的研究 (その 2) : 曲げモーメントを受ける柱脚の剛性および耐力

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