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Behavior of Fiber Reinforced Concrete Beams in Pure Torsion, Combined Bending and Torsion

Author(s):

Kamni Laheriya , NRI institute of research and technology

Keywords:

Aspect Ratio, Glass Fibres, Reinforced Concrete, Beam, Torsional Strength, Point Load

Abstract

In this work united bending and twist has been considered for the fibre reinforced concrete beams by taking the different percentage of fibre volume. The glass fibres are used for the investigation. This would seem to justify large number of investigations dealing with pure torsion of concrete members. This paper is intended to review existing literature related to RC beams strengthened united bending and pure twist in order to better understand the nature. The top reinforcement, aspect ratio and volume chunk of glass fibers kept constant for all the beams. From the tests conducted, it was found that the torsional strength is independent of longitudinal reinforcement. The longitudinal reinforcement, spacing of shear stirrups is kept constant.n present research, an attempt is made to study the following aspects: Behaviour of reinforced concrete beam under. 1) Combined bending and torsion, (a)Without glass fibres (b)With glass fibres 2)The effect of increase of fibre percentage on torsional resistance of beam. 3) To develop torque. Vs. twist relation of the beams. The experimental program consists of casting 4 reinforced concrete beams of size 150mm X150 mm and length 2m. Two of them were cast without fibres to make a correlative study with the remaining 3 beams; one beam is cast with 0.5% fibre by weight, one beam 1.0% fibre by weight in the rest one beam 1.5% fibre by weight added.

Other Details

Paper ID: IJSRDV6I40245
Published in: Volume : 6, Issue : 4
Publication Date: 01/07/2018
Page(s): 315-319

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