二軸載荷下のＲＣ柱における軸方向筋の座屈抑制手法に関する実験的研究

Abstract

In the present paper, the bi-axial cyclic loading tests of four types of RC pillar under the two type of loading histories have been performed. Four types of RC pillar are respectively RC pillar SFRC column and RC pillar with the intermediate reinforcements. The flexural strength and ductility of four types of RC pillar have been examined in details in the post-peak loading area. Furthermore, the energy absorption capacities, the buckling behavior of re-bar have been discussed during cyclic loading. It has been found that the use of intermediate reinforcements and SFC may be effective to make the plastic hinged zone of column more ductile, particularly for the column with wide interval of hoop tie, i.e., the interval of 120 mm in the present study.