Experimental Investigation on Evaluation of Minimum Flexural Reinforcement in RC Beams
Syed Jakeer Hussain1, P. Poluraju2
1Syed Jakeer Hussain, Department of Civil Engineering, Koneru Lakshmaiah Education Foundation, Vaddeswaram (A.P), India.
2P. Poluraju, Department of Civil Engineering, Koneru Lakshmaiah Education Foundation, Vaddeswaram (A.P), India.
Manuscript received on 29 April 2019 | Revised Manuscript received on 13 May 2019 | Manuscript Published on 28 May 2019 | PP: 79-84 | Volume-7 Issue-6C2 April 2019 | Retrieval Number: F10150476C219/2019©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Generally Reinforced concrete (RC)beams are designed with different percentages of flexural reinforcement depending on capacity demand. The amount of reinforcement provided effects the behavior i.e. crack propagation and failure process in RC beam. Minimum reinforcement ratios for RC beams should provide enough ductility after loss of tensile stress in concrete due to cracking. In this present study experimental work has carried out to understand behavior of RC beam. This study has carried out by varying different percentages of tension reinforcement i.e. 0.25%, 0.37%, 0.39%, 0.50%, 0.59%, 0.79%. with size 2200mm × 150mm × 300mm. The beams were tested under four-point loading with loading frame (force controlled). The behavior of RC beams was assessed through load-deflection curve, flexural strength, ductility resulted from four point bending test. From experimental study it has been observed that flexural cracking strength is size dependent.
Keywords: Fracture Mechanics, Four-Point Bending, Flexural Cracking Strength, Minimum Reinforcement, Size Effect.
Scope of the Article: Evaluation of Glazing Systems for Energy Performance