Prediction of Shear Strength of Steel Fibre Based Concrete Beams without Shear Stirrups
Manzoor Ahmad Tantary
Manzoor Ahmad Tantary, Department of civil engineering, National institute of technology, Srinagar, (jammu and Kashmir), India.
Manuscript received on 23 March 2019 | Revised Manuscript received on 30 March 2019 | Manuscript published on 30 March 2019 | PP: 1930-1937 | Volume-7 Issue-6, March 2019 | Retrieval Number: F2660037619/19©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: Seventy Seven tests were conducted on reinforced concrete beams with four steel fibre volume fractions (0, 0.5, 0.75, 1.0 %), two aspect ratios of fibres (66.6 and 80.0), five shear span-depth ratios (1, 1.3, 1.6, 2.6 and 4.0) and three concrete strengths (23.30, 29.72 and 34.23). the results demonstrate that ultimate shear strength increases with increasing fibre volume, decreasing shear span to depth ratio, and increasing concrete compressive strength. It has been seen that as the fibre content increased, the failure mode changed from shear to flexure mode for the beams with moderate amount of longitudinal tension steel. The test results were used to evaluate existing and proposed empirical equations for estimating shear strength. It was found that the equations proposed herein and the equations developed by Narayanan and Darwish provide a good accuracy for the estimation of shear strength
Keywords: Prediction of Shear Strength, Darwish provide, Narayanan and Darwish.
Scope of the Article: Regression and Prediction