SRC部材の復元力特性に対するフープ筋の効果に関する実験

概要

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The object of this study is to develop a new SRC, [H or cross H shaped high strength steel]-[concrete]-[hoop reinforcements] composite, in which longitudinal reinforcements are not used. Experiments were carried out about the restoring force characteristics of the SRC members with emphasis on the effects of hoop reinforcements. 54 specimes including 8 R/C ones were tested. The loading conditions were monotonic compression, cyclic bending, constant axial force and cyclic bending, cyclic shear-bending, and cyclic shear-bending under constant axial force, The nominal strengths of the steel plates used in the specimens were 41 kg/mm^2, 60kg/mm^2 80kg/mm^2. The main conclusions of this study are as follows. (1) Deformation of the SRC member under compression is due not only to compressive strain but also to slip at the diagonal crack. (2) Hoop reinforcements improve the compressive behavior of the concrete and protect the steel from local buckling. Hoop reinforcements, consequently, improve the restoring force characteristics of the SRC column. (3) [H shaped steel]-[concrete]-[hoop reinforcements] composite member has quite good aseismic performance.
社団法人日本建築学会の論文
1985-02-28