鉄筋コンクリート部材の長期曲げひび割れ幅算定法

概要

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Flexural crack width of reinforced concrete member under sustained loading increases with the increase of rebar strain and shrinkage of concrete between cracks. Rebar strain increases because of creep of concrete on the compression side and creep of bond action between the bars and concrete. Although rebar stress increasing due to creep of concrete is already clarified, the influence of shrinkage and bond creep on the crack width is not elucidated Based on the bond theory, influence of shrinkage and bond creep on the crack width increasing was investigated in this paper. Equation to calculate crack width under long-term loading was derived Calculation values of crack width by the derived equation approximately agreed with the experimental values for the previous experiment.
社団法人日本建築学会の論文
2003-03-30