8 rows·Aug 10,2019·Evaluation of shear strength of plain and steel fibrous concrete at high temperatures
An Evaluation of the Interfacial Bond Strength of Kenaf Fibrous Concrete and Plain Concrete Composite January 2019 International Journal of Built Environment and Sustainability 6(1):1-6
The ratio between cracking and ultimate loads increases with increasing steel fiber ratio,where it ranges from 0.3 to 0.48 for non-fibrous concrete slabs and ranges from 0.46 to 0.56 for fibrous concrete beams with 0.4 % of steel fibers.While the ratio ranges from 0.45 to 0.52 for fibrous concrete slabs with 0.8 % of steel(PDF) Shear Strength of Full-Scale Steel Fibre-Reinforced Furthermore,the residual tensile strength of fibrous concrete depends on the tensile strength of plain concrete (f ct ),which,according to Spinella [16] should be evaluated as 0.45 f cm 0.4 (in (PDF) Shear Strength of Full-Scale Steel Fibre-Reinforced Shear strength of full-scale steel fibre-reinforced concrete beams without stirrups 369 Fig.2 Analytical constitutive tensile law proposed by Lim et al.(1987) 3.1 Post-cracking tensile strength of SFRC The presence of fibres into the mixture of concrete allow to sew the cracks during the load process and allocate stress in a wide region of beams.
This study analyzed the mechanical behavior of shear strength of steel fiber-reinforced concrete beams.Six beams subjected to shear loading were tested until failure.Additionally,prisms were(PDF) TORSIONAL STRENGTH OF STEEL FIBROUS CONCRETEThis 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 concrete.12345NextEVALUATION THE SHEAR STRENGTH OF FIBROUSEVALUATION THE SHEAR STRENGTH OF FIBROUS REACTIVE POWDER CONCRETE BEAMS STRENGTHENED WITH CFRP STRIPS 2014,Volume 6,Issue 1,Pages 13-24.Abstract.A new expression for estimating the ultimate shear strength of steel fibers reinforced high strength concrete (SFRHSC) beams strengthened with CFRP strips based on previous researches is
Jun 01,2013·Analytical approach for the evaluation of minimum fibre factor required for steel fibrous concrete beams under combined shear and flexure. post-cracking residual tensile strength of steel fibrous concrete,MPa.f uf. The parameters investigated herein are the plain concrete strength,f c,the shear span to effective depth ratio,Cited by 6Publish Year 2019Author Mehrdad Abdi Moghadam,Ramezanali Izadifard SPECIMEN ID DAY OF TEST COMPRESSIVE STREN ST.DEV [MPA] SHEAR STRENG N 28 47.2 0.78 6.5 N 42 53.4 2.70 8.4 St25 28 44.5 5.30 7.5 St25 42 52.6 1.89 9.1 8 rows on sciencedirectEvaluation of shear strength of plain and steel fibrous It was observed that the inclusion of 0.25 and 0.5% of steel fibers improved the shear strength of plain concrete at the tested temperatures on average by 8.82 and 13.44%,respectively.Meanwhile,it was observed that by increasing the temperature,the shear strength of the concrete decreases and with further increase in temperature to 450 °C they recovered their shear strength and then started to
EVALUATION THE SHEAR STRENGTH OF FIBROUS REACTIVE POWDER CONCRETE BEAMS STRENGTHENED WITH CFRP STRIPS 2014,Volume 6,Issue 1,Pages 13-24.Abstract.A new expression for estimating the ultimate shear strength of steel fibers reinforced high strength concrete (SFRHSC) beams strengthened with CFRP strips based on previous researches is 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 ScholarEvaluation of Mode II Fracture Toughness of Hybrid Fibrous Jan 12,2021·The steel mono-fibrous mixture (S1.6) and the hybrid fibrous one with steel and glass fibers (S1.3G0.3) were the mixtures with the highest fracture toughness values in both tests.However,the percentage differences between the two mixtures were limited to 4.4% to 10.8%,which reflects the crucial and superior effect of the used steel fibers
This research aims to examine the fracture toughness of hybrid fibrous geopolymer composites under mode II.For this purpose,eight geopolymer mixtures were cast and tested to evaluate the influence of steel and synthetic fiber hybridization on mode II fracture response.The first mixture was plain and was kept as a reference,while steel,polypropylene and glass fibers were used in the rest Evaluation of Uncertainties in the Shear Strength Around fifty results of experimental tests carried out on steel fibrous concrete beams available in the literature were collected,and a comparison of shear strength estimation provided by other 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
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 withoutExperimental Evaluation Shear Strength of Steel Fibre For 2% addition of steel fibre of 50 aspect ratio ultimate shear strength will be greater than normally reinforced concrete deep beam.Inclusion of steel fibres (Hook End Type) in the concrete beam improves the shear strength of R.C.C.beams without stirrups.Steel fibres can be used to replace stirrup completely with proper design of concrete.Flexural and Shear Resistance of Steel FiberReinforced In the present paper an analytical model is proposed that is able to determine the shear resistance of lightweight reinforced concrete beams with longitudinal bars,in the presence of reinforcing steel fibers.The model is based on the evaluation of the resistance
Of all the different kinds of failures in concrete,shear failure is a sudden and brittle and occurs abruptly without any prior warning.To avoid these types of failures in concrete,beams are traditionally reinforced with stirrups at closer spacing based on design.An experimental study was carried out to study the shear behavior of steel fiber reinforced self-compacting concrete (SCC) beams Influence of Steel Fiber on the Shear Strength of a Steel fibers volumetric fractions that used were 0.0,0.5,0.75 and 1.0%.Test results indicated that using 1.0% volume fraction of hooked steel fiber led to exclude shear failure and enhanced the use of steel fibers as shear reinforcement in concrete beams.Measurement,interpretation and recommended use of Nov 14,2017·This state-of-the-art review paper provides an extensive summary of current knowledge on the strength and shear behaviour of fibrous peats.Critical assessments and interpretations of the undrained strength,effective-stress strength and at-rest earth pressure coefficient parameter values determined for fibrous peat materials using standard and
This study presents an analytical approach to evaluate an optimum content of deformed steel fibres in shear-dominated fibrous concrete beams in order strength and ductility requirements to be satisfied.The proposed methodology is based on the calculations of the flexural and shear capacities and to the concept that a pure flexural response should be achieved.Previous123456NextShear 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 aShear Performance of Steel Fiber Reinforced ConcreteOver the past century,a considerable amount of research has been conducted to study the brittle behavior of traditional concrete.Currently,fiber reinforcement material appears as an effective way to enhance general concrete performance under diverse loads.In the present study,an experimental investigation of the steel fibers effect on the bending behavior of concrete beams is performed.
Shear Strength,Compressive Strength and Workability Characteristics of Concretes Reinforced with Steel Fibres - written by Mr.Chandrashekharamurthy H.K ,Dr.Prathap Kumar M.T ,Dr.Prema Kumar W.P published on 2019/06/01 download full article with reference data and citationsShear Transfer across a Crack in Reinforced High-Strength In this study,the shear transfer behavior of reinforced concrete across a crack is investigated both analytically and experimentally by conducting tests on 19 precracked push-off specimens.The major parameters considered are the compressive strength of concrete and reinforcement parameter through the shear plane.Test results indicate that the behavior of a crack (in terms of stress Shear Transfer across a Crack in Reinforced High-Strength In this study,the shear transfer behavior of reinforced concrete across a crack is investigated both analytically and experimentally by conducting tests on 19 precracked push-off specimens.The major parameters considered are the compressive strength of concrete and reinforcement parameter through the shear plane.Test results indicate that the behavior of a crack (in terms of stress
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 Shear strength of steel fibre-reinforced concrete and the ratio The ultimate shear strength of steel fibre-reinforced concrete beams is the sum of plain concrete shear strength (Vc),shear strength due to the influence of fibers (Vf) and stirrup shear strength (Vs) which is written as follows Vu = Vc + Vf + Vs (1) If the concrete and steel fiber is mixed into one concreteShear strength of steel fiber reinforced concrete beams A theoretical model for shear strength evaluation of fibrous concrete beams reinforced with stirrups is proposed. The results showed that adding of steel lathe waste fibers in plain concrete
A theoretical model for shear strength evaluation of fibrous concrete beams reinforced with stirrups is proposed. The results showed that adding of steel lathe waste fibers in plain concrete Shear strength of steel fiber reinforced concrete beams This function shows the share of beam action strength contribution on the global strength of the beam calculated including the effect of fibers.The expression 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.Specimen ID Day of test Compressive Strength [Mpa] St.Dev [Mpa] Shear Strength [Mpa] N 28 47.2 0.78 6.5 N 42 53.4 2.70 8.4 St25 28 44.5 5.30 7.5 St25 42 52.6 1.89 9.1 4 more rows Nov 25 2020Author:Mehrdad Abdi Moghadam,Ramezanali IzadifardCited by:6Publish Year:2019Evaluation of shear strength of plain and steel fibrous Was this helpful?People also askWhat is the shear strength of concrete?What is the shear strength of concrete?This study analyzed the mechanical behavior of shear strength of steel fiber-reinforced concrete beams.Six beams subjected to shear loading were tested until failure.Additionally,prisms were tested to evaluate fiber contribution to the concrete shear strength.Steel fibers were straight,hook-ended,35 mm long and aspect ratio equal to 65.(PDF) Shear strength of steel fiber-reinforced concrete beams
Jul 11,2016·In this study,two grades of concrete namely C30 and C50 were investigated for the direct shear behavior of plain and steel fiber reinforced concrete.Shear tests were performed on concrete beams,100 × 100 × 300 mm,reinforced with two different aspect ratios (l/d) of steel hooked-end fibers 65 and 80 and three percentages of fibers 0.5,1.0 and 1.5 % by volume of concrete.The influence of amount and aspect ratio of fibers on Jul 11,2016·The main objective of this study was to study the shear behavior of plain and fiber reinforced concrete at different aspect ratios and at different volume fractions of steel fibers.Test results for C30 and C50 concretes showed that,as the volume fraction of fibers increased from 0 to 1.5%,the shear strength increased about 2.15 and 2.46 times that of plain concrete,respectively.
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