ステンレス鉄筋コンクリート柱の曲げせん断実験

概要

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This paper presents an experimental investigation of shear-flexural behaviors of stainless steel reinforced concrete columns under lateral cyclic loadings. The specimens had a cross section of 300mm×300mm, 900mm or 1200mm clear span, 1.07 or 2.09% flexural reinforcing ratio and 0.477% lateral reinforcing ratio. The normal stress applied to the specimens was 1/4 of the concrete strength. The shear-span ratios were 1.5 and 2.0. The shear strength of the specimens was calculated by the Ohno-Arakawa equations and determined to be about equal to or below the flexural strength. The specimens were expected to show their shear strength and deformation behaviors. The experimental results showed as follows : The shear strength of the stainless steel reinforced concrete columns can be calculated by the Ohno-Arakawa equations. The ratios of the experimental shear strength to the calculated values are from 0.93 to 1.07. The proof stainless steel yield strengths determined as the stress at which plastic strain equals 0.2% strain. The crack patterns and deformation behaviors are different from those of normal reinforced concrete columns.
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