Then by conducting shear strength test on the specimens containing 0.25 and 0.5% of steel fiber and using a regression approach, an equation which predicts the shear strength of concrete was proposed. 2 EVALUATION THE SHEAR STRENGTH OF FIBROUS Kufa Journal of Engineering (K.J.E) ISSN 2207-5528 Vol. 6, Issue 1, December, 2014 Printed in Iraq 13 EVALUATION THE SHEAR STRENGTH OF FIBROUS REACTIVE POWDER CONCRETE BEAMS
The paper presents a numerical study on steelconcretesandwiched beam with throughthrough shear connectors (SCS-TT) after validation from previous experimental tests. Also, the shear connector of the SCS-TT beam was modified to X-form shear connectors (SCS-X) and its behavior due to the configuration change was studied. Estimation of Minimum Torsional Reinforcement of C. E. Chalioris, Analytical approach for the evaluation of minimum fibre factor required for steel fibrous concrete beams under combined shear and flexure, Construction and Building Materials, vol. 43, no. 1, pp. 317336, 2013. View at:Publisher Site Google Scholar Evaluation of shear strength of fibre-reinforced concrete Jan 01, 1990 · Cement &Concrete Composites 12 (1990) 87-94 Evaluation of Shear Strength of Fibre-Reinforced Concrete Beams S. A. A1-Ta'an & J. R. A1-Feel Civil Engineering Department, Mosul University, Iraq (Received 23 January 1989; accepted 29 January 1990) Abstract A method is proposed to calculate the ultimate shear strength of fibre-reinforced concrete rectan- gular beams without stirrups.
Aug 30, 2014 · In general Fibre Reinforced Concrete (FRC) can improve the strength properties of hardened concrete; likewise this experimental investigation is to clarify Shear cracking behaviour of Hybrid Fibre Reinforced Concrete (HyFRC) beams, with the combination of Scrim bled Steel (ST) Fibre and synthetic fibre like Recycled Polyethylene Therephthalate (RPET) and Polypropylene (PP) in the Influence of cover thickness on the flexural response of the shear strength of fibrous reinforced-concrete beams made of normal- or high-strength concretes, ties of plain concrete, steel bars and the geometrical In the following sections the evaluation Punching shear strength of steel fibre reinforced Punching shear strength of steel fibre reinforced lightweight concrete slabs. Fibre reinforcement reduced all the deformations of the plain concrete slab at all stages of loading. For a given serviceability criterion, the presence of fibres increased the service load of the corresponding plain concrete slab by 15-50%. A new evaluation
Shear Performance of Steel Fibrous Concrete Beams C. E. CHALIORIS, E. F. SFIRI Department of Civil Engineering, Democritus University of Thrace, Greece The compression strength of the plain concrete and the steel-fibre-reinforced concrete mixtures with V f = 0.5% and 0.75% were 23.0, 28.4 and 30.3 MPa respectively Shear Response of Fibrous High Strength Concrete Beams In this paper an attempt has been made to study the improvement of shear strength of high strength concrete beams (70 MPa) with different shear span to depth ratios (a/d = 1, 2, 3, and 4) and various dosages of fibers (0.4%, 0.8%, and 1.2% by volume of concrete), without shear reinforcement. Shear Strength of Reinforced Concrete Beams per ACI 4. Shear Strength Criteria The ACI provisions of Chapter 11 considers the shear strength of beams on an average shear stress on the full effective cross section bwd. In a member without shear reinforcement, shear is assumed to be resisted by the concrete web. In a member with shear reinforcement, the shear strength of the beam
Mar 01, 2011 · * Behavior of steel fibrous concrete beams without shear reinforcement, with a/d ratio from one to four and with volume fractions of fiber as 0.4%, 0.8%, and 1.2% of volume of concrete. and Ahmed, S., Evaluation of Shear Strength of High Strength Concrete Beams without Stirrups, The Arabian Journal for Science and Engineering, Vol. 33, No Shear strength and deformation of steel fibre reinforced and Hong (2016) explained that the shear strength of very high strength steel fibrous concrete beams (f c >100 MPa) was higher than the predicted shear strength based on the design equation in the standard (ACI 318-14). However, Jain and Singh (2013) stated that the shear strength of concrete beams containing steel fibers with a Shear strength of steel fiber reinforced concrete beams The present paper proposes a semi-empirical analytical eion that is capable of determining the shear strength of reinforced concrete beams with longitudinal bars, in the presence of reinforcing fibers and transverse stirrups. The eion is based on an evaluation of the strength contribution of beam and arch actions and it makes it possible to take their interaction with the fibers
This function shows the share of beam action strength contribution on the global strength of the beam calculated including the effect of fibers. The eion is calibrated on the basis of experimental data available in literature referring to fibrous reinforced concrete beams with steel fibers and recently obtained by the authors. Steel fibrous RC beams subjected to cyclic deformations Apr 01, 2013 · The steel fibrous concrete beams (V f = 0.50% and 0.75%) without stirrups exhibited increased shear capacity with respect to the reference plain concrete beam without stirrups, as it was expected, and comparable ultimate strength with the non-fibrous beam with stirrups ( w = 0.50%). TORSIONAL STRENGTH OF STEEL FIBROUS CONCRETE This enhancement will modify the failure mode and improve both the shear and torsional strength of plain concrete. This paper reviewed the previous studies on the torsional strength of steel fibrous concrete and a method is proposed to predict the cracking and torsional strength of steel fibrous
Sep 01, 2018 · For beams with shear span to depth ratio a/d = 3, due to the addition of steel fibers the ultimate shear strength increased slightly by 5% and 4.11% compared to plain beams SCC30 and SCC70. The percentage increase is lower in case of beams tested with a shear span of 3, compared to that of beams tested with a shear span a/d = 2.