FraMCoS 9 2016 Berkeley, California, USA

Fatigue Behavior of Lightly Reinforced Concrete Beams in Flexure due to Overload

This paper reports experimental investigations on the fatigue behavior of lightly reinforced concrete (RC) beams subjected to an overload at different instants of loading. Effect of size on fatigue response of RC beams has also been studied. A review of…

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Year 2016
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Abstract

This paper reports experimental investigations on the fatigue behavior of lightly reinforced concrete (RC) beams subjected to an overload at different instants of loading. Effect of size on fatigue response of RC beams has also been studied. A review of existing code provisions and equations proposed by various researchers to predict fatigue life has been reported. Crack growth mechanism in steel reinforcement and concrete, mode of failure and mid-span deflection of beams have been discussed. It has been observed that overload at any instant decreases the fatigue life of RC beams by accelerating crack initiation process. The fatigue life of lightly RC beams has been observed to be influenced by the size.