補強コンクリート部材の付着割裂性状に関する研究 : その4 横補強のある場合の局所付着割裂性状

摘要

To obtain the local bond stress versus slippage relationship with confinement of lateral reinforcement, pull-out test is conducted. The test results show that maximum bond stress has an increment as lateral confinement stress also increases, and the slippage at maximum bond stress is influenced by splitting crack width and shape of main reinforcement. A new relationship between bond stress and slippage in case of confinement of lateral reinforcement is proposed using these results and effect of lateral confinement. A numerical analysis is performed to confirm the model with experimental results. The analytical results show a good agreement in bond splitting strength with experimental results of previous studies.