Abstract
The current design standards refer to the necessity for expansion joint, there are no clear limitations as to the location and spacing of expansion joint. To find the effect of the rebar ratio, structural tests were performed on Samples with adjustments of the rebar ratio. As the rebar ratio increases, the average crack width decreas-es. The number of crack increase but the concrete crack width decrease. Also, comparing results of experiment with those of analysis, it is necessary to apply the concrete tensile strength, which reflects the contribution of the reinforcement ratio.
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