노치를 가진 강섬유 보강 고강도 콘크리트 보의 휨 피로거동에 관한 실험적 연구

An Experimental Study on the Flexural Fatigue Behavior of Steel Fiber Reinforced High Strength Concretes Beams with Single Edged Notch

The fatigue tests were performed on the high strength concrete beams with single edged notch which was reinforced steel fiber. The steel fibers were used 1.0 percent by volume fraction. These were tested consists of constant amplitude tests for different levels of loading. The test program included endurance limit with repect to flexural fatigue and relation of load-CMOD(crack mouth opening displacement). The results of test, it is found from S-N curve that the fatigue strength for a life of 2 million cycles of load was approximately 70percent with respect to the static ultimate strength .