반복하중 하에서 부착응력-슬립 거동 실험적 연구

Experimental Study of Bond Stress-Slip Behavior under Repeated Loading

To analyze a bond stress-slip behavior between a reinforcing bar and concrete under repeated loading, pull-out fatigue test was performed. Major variables were repeated stress levels and cycle numbers. Test specimen was taken repeated constant amplitude loading before it was fractured by pull-out test. Increments of bond strength and slip according to repeated stress level and cycle numbers were analyzed. On the basis of test results, Local bond stress-slip relationship under repeated loading were formulated