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 3) : 曲げモーメントを受ける柱脚の応力伝達機構

概要

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In order to clarify the mechanism of stress transfer developed through S. R. C. column base connections, this paper reports an experimental study on relations between load and strain, and the strain distribution and stress transfer characteristics in column base connections based on the test data which was already presented in the previous paper (Part 2). The main results derived from the analysis on these experiments are as follows : (1) Theoretical Load-Strain curves for each component gradually approach the corresponding experimental ones in proportion to the moment resistance of the anchor bolts after the concrete cracked at the tension face. (2) In the case when the thickness of the base plate is extremely thin, the stress transfer capability of the steel column embedded is seen to be predominantly reduced. But, when the base plate is the proper thickness, the stress of the steel column is immediately transmitted from the base plate through the anchor bolts into the footing. (3) The stress transfer capability of the steel column embedded is not affected so much by the reinforcement quantity. But it is desirable that the half of the moment resistance of the steel column embedded is resisted by the reinforcement considering the width of crack in the concrete.
社団法人日本建築学会の論文
1980-04-30