抄録
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(Lb) and the sum of the strain of reinforcing steel and concrete at the crack. If Lb 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 Lb, and the estimation equation of Lb was proposed. Parameter study (reinforcing steel ratio, concrete strength and so on) was carried out by using Lb to investigate the effect of crack width due to drying shrinkage.
