鉄筋コンクリート壁における収縮ひび割れ近傍の等価付着喪失長さと収縮ひび割れ幅の算定

概要

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The crack width due to drying shrinkage of RC members is calculated by integrating a difference of strain of reinforcing steel and concrete along bond loss region. This value is correspond to the multiply of the equivalent bond-loss length (L_b) and the sum of the strain of reinforcing steel and concrete at the crack. If L_b is used, crack width can be simply calculated. In this paper, a parameter study was carried out by the bond analysis to investigate the influence of several variables on L_b, and the estimation equation of L_b was proposed. Parameter study (reinforcing steel ratio, concrete strength and so on) was carried out by using L_b to investigate the effect of crack width due to drying shrinkage.
社団法人日本建築学会の論文
2008-02-28