torsional strength of steel fiber reinforced concrete beams
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Torsional Strength of Steel Fiber Reinforced Concrete Beams

Steel fiber-reinforced concrete (SFRC) with high compressive concrete strength is affected primarily by the dimensions, shape, content, aspect ratio, and tensile strength of the embedded steel fiber.

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Torsional strength of steel fiber reinforced concrete

2021-8-4  the torsional strength of SFRC beams. Based on regression analysis a new mathematical relationship that predicts the torsional moment for fiber reinforced concrete is derived. 1- INTRODUCTION . The addition of steel fibers to concrete mixes improves the properties of the obtained steel fiber reinforced concrete (SFRC). Aspects of the improved

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TORSIONAL STRENGTH OF STEEL FIBER REINFORCED CONCRETE BEAMS

The results from the experimental work show that, when adding the steel fibers to normal reinforced concrete beams an improvement yields in the ultimate torsional strength for specimens with (0.5 %, 0.75%, 1%) volume fraction of steel fiber by (28.55%), (38.09) and (49.46%), respectively when compared with the control beam.

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(PDF) Strength of steel fiber reinforced concrete beams in ...

The effect of steel fibers on the behavior and ultimate strength of reinforced concrete beams under torsion is studied. Glued standard bright wires of designation ZC 60/0.8 were used. A total of ...

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Strength of steel fiber reinforced concrete beams in pure ...

2018-1-4  This paper presents a simple yet accurate technique for determining the strength of steel fiber reinforced concrete beams loaded in pure torsion. The results of the model are compared with 21 beams found in the literature as well as two new beams tested by the authors and reported herein.

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Torsional behavior of steel fiber reinforced concrete beams

2012-3-1  Torsion of structural members and the behavior of steel fiber reinforced concrete became the area of interest of many researchers in the past and it is still newsworthy. In this study, 12 reinforced concrete (R/C) beams with Steel Fiber Reinforced Concrete (SFRC) were tested to observe the failure under torsional moments.

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Experimental research on torsional strength of synthetic ...

2020-10-1  Nevertheless, there are limited studies on the SY.F impact on the torsional features of the reinforced concrete beam (RCB) with fiber. The torsional performance of SY.F that reinforcing concrete under pure torsional pressure must, therefore, be tested utilizing various fibers lengths. 2.

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(PDF) Torsional strength of Reinforced Concrete Beams with ...

A comprehensive study is performed on the effect of the vertical stirrups, diagonal stirrups and steel fibers on the cracking and torsional strength of reinforced concrete beams with transverse ...

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Multivariable Regression Strength Model for Steel Fiber ...

Torsional behavior and analysis of steel fiber reinforced concrete (SFRC) beams is investigated in this paper. The purpose of this study is twofold; to examine the torsion strength models for SFRC beams available in the literature and to address properly verified design formulations for SFRC beams under torsion. A total of 210 SFRC beams tested under torsion from 16 different experimental ...

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Torsional responses of steel fiber-reinforced concrete ...

This study introduces two analytical approaches to estimate the torsional behavior of steel fiber reinforced concrete (SFRC) members. The first approach utilized the tensile constitutive relationship of SFRC in tension derived from SFRC panel test results, and the second approach adopted the direct tension force transfer model, which were applied to the smeared-truss model.

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TORSIONAL STRENGTH OF STEEL FIBER REINFORCED CONCRETE BEAMS

The results from the experimental work show that, when adding the steel fibers to normal reinforced concrete beams an improvement yields in the ultimate torsional strength for specimens with (0.5 %, 0.75%, 1%) volume fraction of steel fiber by (28.55%), (38.09) and (49.46%), respectively when compared with the control beam.

Get Price

(PDF) Multivariable Regression Strength Model for Steel ...

2021-7-12  Torsional behavior and an analysis of steel fiber reinforced concrete (SFRC) beams are investigated in this paper. The purpose of this study is twofold: to examine the torsion strength models for ...

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Torsional behavior of steel fiber reinforced concrete ...

The existing analysis models for torsional strength or torsional behavior of steel fiber reinforced concrete (SFRC) members typically adopted a simple approach, in which the tensile constitutive ...

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Multivariable Regression Strength Model for Steel Fiber ...

Torsional behavior and analysis of steel fiber reinforced concrete (SFRC) beams is investigated in this paper. The purpose of this study is twofold; to examine the torsion strength models for SFRC beams available in the literature and to address properly verified design formulations for SFRC beams under torsion. A total of 210 SFRC beams tested under torsion from 16 different experimental ...

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TORSIONAL STRENGTHENING OF UNDER REINFORCED CONCRETE BEAMS ...

The torsional moment and angle of twist has been studied of steel fiber reinforced concrete and normal reinforced concrete beams under pure torsion. The fraction of fibers added in the concrete varies from 0 % to 1 % by volume of concrete, in the regular interval of 0.25%. In this aspect ratio of steel fiber is kept as 38. For present research ...

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Torsional behavior of steel fiber reinforced concrete ...

Abstract Torsion of structural members and the behavior of steel fiber reinforced concrete became the area of interest of many researchers in the past and it is still newsworthy. In this study, 12 reinforced concrete (R/C) beams with Steel Fiber Reinforced Concrete (SFRC) were tested to observe the failure under torsional moments. The volumetric steel fiber content, fiber aspect ratio, and the ...

Get Price

Multivariable Regression Strength Model for Steel Fiber ...

Torsional behavior and analysis of steel fiber reinforced concrete (SFRC) beams is investigated in this paper. The purpose of this study is twofold; to examine the torsion strength models for SFRC beams available in the literature and to address properly verified design formulations for SFRC beams under torsion. A total of 210 SFRC beams tested under torsion from 16 different experimental ...

Get Price

(PDF) Torsional strength of Reinforced Concrete Beams with ...

A comprehensive study is performed on the effect of the vertical stirrups, diagonal stirrups and steel fibers on the cracking and torsional strength of reinforced concrete beams with transverse ...

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Torsional Analysis of Steel Fiber Reinforced Concrete Beams ...

Torsional Analysis of Steel Fiber Reinforced Concrete Beams steel fiber;tension stiffness;torsional analysis;modified space truss model;loading history; While concrete is brittle, fiber reinforced concrete has the advantage of a great toughness. Therefore, numerous ...

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Shear Strength of Steel Fiber-Reinforced Ultrahigh ...

This paper reports the results of a testing program on ultrahigh-performance steel fiber-reinforced concrete beams. Eight prestressed concrete beams were tested in shear with the test variables being the shear span-to-depth ratio and the quantity and type of steel fibers.

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TORSIONAL STRENGTHENING OF UNDER REINFORCED CONCRETE BEAMS ...

The torsional moment and angle of twist has been studied of steel fiber reinforced concrete and normal reinforced concrete beams under pure torsion. The fraction of fibers added in the concrete varies from 0 % to 1 % by volume of concrete, in the regular interval of 0.25%. In this aspect ratio of steel fiber is kept as 38. For present research ...

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Torsional strengthening of under reinforced concrete beams ...

2014-8-21  In this paper experimental study on torsional behaviour of steel fiber reinforced concrete has carried out. 1.1 Torsional Strengthening of Beams Early efforts for understanding the response of plain concrete subjected to pure torsion revealed

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Torsional Strengthening of Reinforced Concrete Beams

2021-2-2  adequate torsional strength is through application of externally bonded carbon fiber reinforced polymers (CFRP). To date, American Concrete Institute (ACI) code, as well as other building codes, do not have recommendations or provisions for strengthening RC beams for torsion using fiber-reinforced polymer (FRP) composites due to the inexistence ...

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Experimental Study on Torsion of Steel Fiber Reinforced ...

The torsional strength of beams of ternary blended fiber reinforced concrete with 6% micro silica, 15 % fly ash and 1.25 % of crimped fiber was found to be increased by 40 % where as compressive strength of same concrete mix is increased by 12.6 % at the age of 28 days.

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Prediction of Shear Strength of Steel Fiber Reinforced ...

2019-7-1  This paper attempt to predict the shear strength of . steel fiber reinforced concrete beams with different percentage of . steel fiber without web reinforcem. ent. The effect of the fiber . volume fraction on the shear response of SFRC with optimum . steel fib. er content has been studied. Five. different volume

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Steel fibers for replacing minimum reinforcement in

2021-3-10  supplied. Ultra-High Performance Fiber Reinforced Concrete (UHPFRC) beams subjected to pure torsion were tested by Yang et al. [42], who tested, among others, somebeams withoutstirrups and characterized by varying longitudinal reinforcement ratios (i.e., q l = 0.56%, 0.88%, 1.27%) and high contents (q f-= 1% and 2%) of high strength short steel ...

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Torsional Behavior of Steel Fiber Reinforced Concrete Beams

2016-10-8  In this study, 12 reinforced concrete (R/C) beams with Steel Fiber Reinforced Concrete (SFRC) were tested to observe the failure under torsional moments. The volumetric steel ber content, ber aspect ratio, and the longitudinal reinforcement were the variables of the investigation.

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Torsional Behavior of High-Strength Concrete Beams with ...

2019-1-17  Although there is a growing trend to use higher strength for concrete and steel in reinforced concrete structures due to the lightness and slenderness of these members together with the simplified arrangement of their reinforcement, there is still the necessity to inspect the reduction of ductility resulting from the gain in strength. Taking into account that this also concerns the design for ...

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Torsional behaviour of reinforced concrete beams ...

These beams are retrofitted with aramid fiber wrapping, and their torsional strength can be gained. 2. Methodology 2.1 Analytical torsional moment in reinforced concrete beam The torsional moment in the main beam is obtained by distributing unbalanced joint moment in proportion to the ratio of torsional stiffness of the main beam to the sum of

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Experimental Investigation of Fiber Reinforced Concrete

2020-10-13  Shear strength of fiber reinforced concrete beams was studied in this research project. Three types of fibers were examined: hooked-end steel fiber, crimped-steel fiber, and crimped-monofilament polypropylene fibers. The experimental program included five beam specimens. Two of the beams were control specimens in which one was reinforced

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