고강도 철근콘크리트 보의 피로거동에 관한 실험적 연구

An Experimental Study on Fatigue Behavior of High Strength Reinforced Concrete Beams

The relation of cycle loading to deflections on the mid-span, the crack propagation and the modes of failure according to cycle number, fatigue life and S-N curve were observed through the fatigue test. Based on the fatigue test results, high-strength reinforced concrete beams failed to 57 ~ 66 percent of the static ultimate strength. Fatigue strength about two million cycles from S-N curves was certified by 60 percent of static ultimate strength.