機械式定着工法によるRC造T形およびL形柱梁接合部の終局耐力に関する設計条件

概要

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Recently, mechanical anchorages are frequently used for high-strength and thick reinforcements in R/C exterior beam-column joints at middle stories. However, the design criteria on the ultimate strength of R/C T-shaped and L-shaped beam-column joints at top story is not clarified, because the stress condition of these joints is complicated in relation to the detailing of reinforcements. In this paper, the authors propose the evaluation formulas of the ultimate shear force of beam-column joint which is transmitted through the ultimate end moment of beam or column. Consequently, the authors clarify the design criteria on the ultimate strength of T-shaped and L-shaped R/C beam-column joint to ensure the ductility at beam end or column end, on the basis of comparison between design values and tested values of past experimental studies.
2005-04-30