torsional improvement of reinforced concrete beams using

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Torsional improvement of reinforced concrete beams using ...

Mar 01, 2016  Torsional improvement of reinforced concrete beams using ultra high-performance fiber reinforced concrete (UHPFC) jackets – Experimental study ... 210%, 187% and 152% for beams (RS-S00-F25, RS-S00-F20, RS-S00-F15 and RS-S00-F10), respectively as the control beam. This improvement in the torsional response was significant in the RC beams fully ...

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Torsional improvement of reinforced concrete beams using ...

Torsional upgrading of deficient RC beams without transverse reinforcement using UHPFC jacketing technique (4-sided, 3-sided and 2-sided) was evaluated. • Torsional performances of strengthened beams were compared experimentally and numerically. • UHPFC jackets enhanced the torsional performance of RC beams.

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Torsional improvement of reinforced concrete beams using ...

Torsional improvement of reinforced concrete beams using ultra high-performance fiber reinforced concrete (UHPFC) jackets – Experimental study March 2016 Construction and Building Materials 106 ...

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Torsional Strengthening of Reinforced Concrete Beams Using ...

Torsional Strengthening of Reinforced Concrete Beams Using CFRP Composites . by . Ranj Rafeeq . A thesis submitted in partial fulfillment of the . requirements for the degree of . Masters of Science . in . Civil and Environmental Engineering . Thesis Committee: Franz Rad, Chair Peter Dusicka Evan Kristof . Portland State University . 2016

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Torsional strengthening of reinforced concrete beams using ...

May 15, 2017  Torsional strengthening using FRP has received less attention by researchers. Torsional strengthening, or upgrading the torsional capacity, of reinforced concrete (RC) beams may be necessary due to factors such as increased service loading, structural damage or deterioration, and more stringent updates in building codes.

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Torsional Strengthening of RC Beams Using GFRP Composites ...

In this work an experimental investigation on the improvement of the torsional resistance of reinforced concrete beams using Glass Fiber Reinforced Polymer (GFRP) is presented. Total 24 RC beams have been cast in this work. Ten beams of dimension 150 mm × 150 mm × 1300 mm are subjected to pure torsion while fourteen beams of 150 mm × 150 mm ...

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Torsional improvement of reinforced concrete beams using ...

Torsional improvement of reinforced concrete beams using ultra high-performance fiber reinforced concrete (UHPFC) jackets – Experimental study March 2016 Construction and Building Materials 106 ...

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Torsional Strengthening of Reinforced Concrete Beams

Torsional Strengthening of Reinforced Concrete Beams Using CFRP Composites . by . Ranj Rafeeq . A thesis submitted in partial fulfillment of the . requirements for the degree of . Masters of Science . in . Civil and Environmental Engineering . Thesis Committee: Franz Rad, Chair Peter Dusicka Evan Kristof . Portland State University . 2016

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Torsional Strengthening of RC Beams Using GFRP Composites ...

In this work an experimental investigation on the improvement of the torsional resistance of reinforced concrete beams using Glass Fiber Reinforced Polymer (GFRP) is presented. Total 24 RC beams have been cast in this work. Ten beams of dimension 150 mm × 150 mm × 1300 mm are subjected to pure torsion while fourteen beams of 150 mm × 150 mm ...

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Upgrading Torsional Resistance of Reinforced Concrete ...

Nov 04, 2002  An experimental investigation is conducted on the improvement of the torsional resistance of reinforced concrete beams using fiber-reinforced polymer (FRP) fabric. A total of 11 beams were tested. Three beams were designated as control specimens and eight beams were strengthened by FRP wrapping of different configuration and then tested.

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Torsional Strengthening of Reinforced Concrete Beams Using ...

‫‪TORSIONAL STRENGTHENING OF REINFORCED‬‬ ‫‪CONCRETE BEAMS USING CFRP SHEETS‬‬ ‫‪Mahmoud M. El-Kateb1, Amr A. Abdel Rahman2, Tarek K. Hassan3‬‬ ‫‪1‬‬ ‫‪Graduate student, 2 Professor, 3 Professor‬‬ ‫‪Structural engineering dept., Faculty of Engineering, Ain Shams University, Cairo, Egypt‬‬ ‫اﻟﻣﻠﺧص اﻟﻌرﺑﻰ‬ ‫ﻗد ...

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UPGRADING TORSIONAL RESISTANCE OF REINFORCED CONCRETE ...

An experimental investigation is conducted on the improvement of the torsional resistance of reinforced concrete beams using fiber-reinforced polymer (FRP) fabric. A total of 11 beams were tested. Three beams were designated as control specimens and eight beams were strengthened by FRP wrapping of different configuration and then tested.

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Improvement of torsional resistance in ultrahigh ...

the concrete cross section of beams reduced to the dimensions of the centerline of stirrups [4]. Research significance This paper highlights the effect of thickness of concrete cover on the torsional resistance of ultra-high performance fibre reinforced concrete beams at pre-crack and post-crack stages. Even though the previous

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Torsional Strengthening of RC Beams Using GFRP Composites ...

Jun 08, 2016  In this work an experimental investigation on the improvement of the torsional resistance of reinforced concrete beams using Glass Fiber Reinforced Polymer (GFRP) is presented. Total 24 RC beams have been cast in this work. Ten beams of dimension 150 mm × 150 mm × 1300 mm are subjected to pure torsion while fourteen beams of 150 mm × 150 mm ...

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Torsional behaviour of reinforced concrete beams with ...

Jun 01, 2016  A reinforced concrete (RC) structural element such as peripheral beams, ring beams at bottom of circular slab, beams supporting canopy and other types of beams are subjected to torsional loading. Strengthening or upgrading becomes necessary for these beams when they are unable to provide the resistance.

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Report on Torsion in Structural Concrete

9.4—Design Example 1: solid rectangular reinforced concrete beam under pure torsion, p. 67 9.5—Design Example 2: Prestressed concrete box girder under combined torsion, shear, and flexure, p. 74 CHAPTER 10—REFERENCES, p. 86 CHAPTER 1—INTRODUCTION AND SCOPE 1.1—Introduction Accounting for the effects of torsion is essential to the

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TORSION DESIGN OF PRESTRESSED CONCRETE

Design provisions for torsion in reinforced concrete members have been developed and included in the ACI 318-71 Building Code. These provisions are not applicable to prestressed concrete. Based on a thorough review of available research data on torsion in prestressed concrete, this paper proposes an extension of the ACI design procedures to cover

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Torsional capacity investigation of reinforced concrete ...

An experimental study is carried out to test 25 reinforced concrete (RC) beams in order to investigate the torsional behavior of the beams using welded and unwelded transverse reinforcement. Four different transverse reinforcement configurations were considered: ordinary, continuous circular spiral, continuous rectangular spiral, and continuous ...

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CH8 Torsion in Beams - REINFORCED CONCRETE DESIGN Dr AHMED ...

View Notes - CH8 Torsion in Beams from STRUCTURE 345 at University of Kufa. REINFORCED CONCRETE DESIGN Dr. AHMED AJEL Introduction to Torsion in Beams 8.1 Analysis and Design for Torsion Reinforced

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Reinforced concrete - Wikipedia

Reinforced concrete (RC), also called reinforced cement concrete (RCC), is a composite material in which concrete's relatively low tensile strength and ductility are compensated for by the inclusion of reinforcement having higher tensile strength or ductility. The reinforcement is usually, though not necessarily, steel bars and is usually embedded passively in the concrete before the concrete ...

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Improvement of torsional resistance in ultrahigh ...

the concrete cross section of beams reduced to the dimensions of the centerline of stirrups [4]. Research significance This paper highlights the effect of thickness of concrete cover on the torsional resistance of ultra-high performance fibre reinforced concrete beams at pre-crack and post-crack stages. Even though the previous

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Torsional Strengthening of Reinforced Concrete Beams Using ...

‫‪TORSIONAL STRENGTHENING OF REINFORCED‬‬ ‫‪CONCRETE BEAMS USING CFRP SHEETS‬‬ ‫‪Mahmoud M. El-Kateb1, Amr A. Abdel Rahman2, Tarek K. Hassan3‬‬ ‫‪1‬‬ ‫‪Graduate student, 2 Professor, 3 Professor‬‬ ‫‪Structural engineering dept., Faculty of Engineering, Ain Shams University, Cairo, Egypt‬‬ ‫اﻟﻣﻠﺧص اﻟﻌرﺑﻰ‬ ‫ﻗد ...

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TORSIONAL STRENGTHENING OF REINFORCED CONCRETE

1 TORSIONAL STRENGTHENING OF REINFORCED CONCRETE BEAMS USING CFRP SHEETS Mahmoud M. El-Kateb1, Amr A. Abdel Rahman2, Tarek K. Hassan3 1 Graduate student, 2 Professor, 3 Professor Structural ...

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Torsional behaviour of reinforced concrete beams ...

Fig. 2 Torsion of beam are acting uniform across the perpendicular plane to it (Deifalla and Ghobarah 2014). Alabdulhady et al. (2017) carried investigation on the improvement of the torsional resistance of reinforced concrete beams using PBO-FRCM composite. When fiber orientation of

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Journal of King Saud University – Engineering Sciences

imental study deals with the torsional strengthening of concrete beams without stirrups using externally bonded carbon fiber sheets and strips as an external reinforcement. Alabdulhady et al. (2017) carried investigation on the improvement of the torsional resistance of reinforced concrete beams using PBO-FRCM compos-ite.

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(PDF) Behavior of Reinforced Concrete Beams Strengthened ...

An experimental study for the improvement of the torsional resistance of reinforced concrete beams using FRP is presented in this paper. Total 14 beams of 150 mm × 150 mm × 1700 mm are cast.

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Torsional capacity investigation of reinforced concrete ...

An experimental study is carried out to test 25 reinforced concrete (RC) beams in order to investigate the torsional behavior of the beams using welded and unwelded transverse reinforcement. Four different transverse reinforcement configurations were considered: ordinary, continuous circular spiral, continuous rectangular spiral, and continuous ...

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7. Analysis and Design for Torsion. Analysis and Design ...

7. Analysis and Design for Torsion. Analysis and Design for Torsion TORSION IN REINFORCED CONCRETE MEMBERS In case of T≥T cr, stirrups and longitudinal bars are needed. - longitudinal bar alone : at most 15% improvement of torsional strength Gonly dowel action

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Structural Strengthening/Repair of Reinforced Concrete (RC ...

the current state of the art for flexural, shear, and torsional-strengthening of RC beams using various fiber-reinforced cementitious materials. Moreover, the main aims of this review article are to emphasize on the effective strengthening schemes for flexural, shear, and torsional strengthening, and to

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Comparative Investigation on Torsional Behaviour of RC ...

Many researchers worldwide have extensively used fibre-reinforced polymer (FRP) strengthening materials and near-surface mounted (NSM) to enhance the shear and flexural strengths of reinforced concrete (RC) beams. However, studies on torsional strengthening are limited. Although a few studies have focused on torsional strengthening, none of them simultaneously investigated torsion with

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Local retrofit of exterior RC beam–column joints using ...

Thaer Jasim Mohammed, B.H. Abu Bakar, N. Muhamad Bunnori, Torsional improvement of reinforced concrete beams using ultra high-performance fiber reinforced concrete (UHPFC) jackets – Experimental study, Construction and Building Materials, 10.1016/j.conbuildmat.2015.12.160, 106,

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Torsion Strengthening of RC Beams with External Lateral ...

Nov 17, 2020  Ghobarah et al. studied the torsional behavior of strengthening reinforced concrete beams using various CFRP and GFRP wrapping configurations, it was concluded that the complete wrap of the torsion zone is far more effective in strengthening the torsional resistance than a beam strengthened using fiber strips, and the 45º spiral wrap is much ...

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Design Of Concrete Structures Nilson 14th Edition

Its main theme is the repair and retrofit of un-reinforced, reinforced and prestressed concrete structures using carbon, glass and other high strength fibre composites. In the case of beams, the focus is on their strengthening for flexure and shear or their stiffening.

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Reinforced concrete - Wikipedia

Reinforced concrete (RC), also called reinforced cement concrete (RCC), is a composite material in which concrete's relatively low tensile strength and ductility are compensated for by the inclusion of reinforcement having higher tensile strength or ductility. The reinforcement is usually, though not necessarily, steel bars and is usually embedded passively in the concrete before the concrete ...

Get Price