RC造柱にとりつく面外袖壁の軸力負担性能の評価法

概要

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The objectives of this study were to propose a simplified method to evaluate axial load carrying capacity of transverse side walls connecting with reinforced concrete columns subjected to high axial load. Four column specimens were examined. Variables of those specimens were existence of side walls, location of side walls (centric or eccentric) and loading method of lateral force (bi-directional loading or uni-directional loading). Moment curvature relations of tested specimens were calculated by basic flexural theory under the assumption that plane remained plane after bending. Confinement from transverse reinforcement as well as rigid base stub of specimens was taken into account in the concrete model and feasibility of this concrete model was discussed in the paper. Furthermore parametric study using flexural analysis was conducted. Main variables of the study were sectional area of side walls, location of side wall and level of axial load ratio of columns. Methods to evaluate axial load carrying capacity of columns with side walls were proposed through parametric study using flexural analysis.
2003-05-30