添筋重ね継手を有するRC梁の付着割裂強度に関する実験研究

概要

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An increasing number of studies have recently been made on lap splices of main rebars overlapped in the beam depth direction or lap splices of main rebars placed end to end with splint-bars. In this study, lap splices of main rebars with splint-bars were used at the midspan of the beam. To examine the properties of the beam when the lap length was reinforced with U-shaped bars, a bending test was carried out. As a result of the test, it was found that the allowable stress design was acceptable for long-term stress even when the lap splices discussed in this paper were used. A method was also proposed for evaluating the bond splitting strength. This method was developed by making modifications to evaluation formulas currently in use, to enable consideration of the reinforcing effects of U-shaped bars.
2007-11-30