[L05] 高強度コンクリート（構造）／柱Ⅰ

[L2083] Effect of Stirrup Diameter and Configuration on Diagonal Compressive Capacity of HSC Beams

Patarapol TANTIPIDOK¹,松本 浩嗣²,二羽 淳一郎² (1.Tokyo Institute of Technology,2.東京工業大学)

キーワード：斜めの圧縮破壊耐力,高強度コンクリート,ウェブ圧縮破壊,スターラップ間隔

This paper investigated the effect of stirrup diameter and configuration on the diagonal compressive capacity of HSC beams and compared the results with the prediction by the existing equations. Four 590-mm-depth I-beams were tested by three-point bending. As a result, the effect of stirrup diameter was insignificant. Even when wide stirrup spacing was used, a sufficient confinement effect was achieved by providing two-legged stirrups, and the localization of compressive stress was prevented. The existing equations should be improved in both accuracy and appropriateness.
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