torsional strengthening of reinforced concrete

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Torsional strengthening of reinforced concrete box beams ...

2007-4-1  In current practice, torsional strengthening of concrete members is achieved by one of the following methods : (1) increasing the member cross-sectional area combined with adding of transverse reinforcement, (2) using externally bonded steel plates and pressure grouting the gap between plate and concrete element, and (3) applying an axial load to the member by post-tensioning.

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Torsional strengthening of reinforced concrete beams

2017-5-15  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 reinforced concrete beams with ...

2019-4-30  Torsional strengthening of reinforced concrete beams using different configurations of NSM FRP with epoxy resins and cement-based adhesives Compos. Struct. , 168 ( 2017 ) , pp. 569 - 581

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Torsional Strengthening of Reinforced Concrete Beams

2021-2-2  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

2021-8-3  The strength of reinforced concrete (RC) members has been improved with a good deal of success using carbon fibre-reinforced polymers (CFRP) with two

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Torsional strengthening of reinforced concrete beams with ...

The use of externally bonded (EB) fiber reinforced composites to strengthen reinforced concrete (RC) structures has been explored extensively in recent decades. While many studies have been conducted on the flexural, shear, and axial strengthening of RC members, far fewer studies have been conducted on torsional strengthening.

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Torsional Strengthening of Reinforced Concrete Beams

The impacts of numerous important factors on the Energy Absorption (EA) of torsional Reinforced Concrete (RC) beams strengthened with external FRP is the main purpose and innovation of the current research. A total of 81 datasets were collected from previous studies, focused on the investigation of

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TORSIONAL STRENGTHENING OF REINFORCED ...

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 STRENGTHENING OF UNDER REINFORCED

2019-4-21  Spandrel beams, located at the perimeter of buildings, carry loads from slabs and beams from one side of the member only. Such loading conditions generate the torsional forces that are transferred from the spandrel beams to the columns. Reinforced concrete (RC) beams have been found to be deficient in torsional capacity and in need of strengthening. These kinds of deficiencies occur due to several reasons, such as lesser area provided of stirrups than required resulting from construction errors or inadequate design, reduction in the required area of steel due to corrosion. In the case of torsion, all sides of the member are subjected to diagonal tension. Similar to the flexure and shear strengthening, the FRC (Fiber Reinforced Concrete) also helps RC (Reinforced Concrete) members for torsion strengthening.

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Experimental study of torsional strengthening on thin ...

2019-1-15  Torsional strengthening of reinforced concrete beams using different configurations of NSM FRP with epoxy resins and cement-based adhesives Compos Struct , 168 ( 2017 ) , pp. 569 - 581 , 10.1016/jpstruct.2016.12.045

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Torsional Strengthening of Reinforced Concrete Beams

2021-2-2  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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(PDF) Torsional Strengthening of Reinforced Concrete

‫‪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 UNDER REINFORCED

2019-4-21  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 that the material fails in tension rather than shear. Structural members curved

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(PDF) Torsional Strengthening of Reinforced Concrete

Torsional Strengthening of Reinforced Concrete Beams with Externally-Bonded Fibre Reinforced Polymer An Energy Absorption Evaluation.pdf 2553-6899-1-PB.pdf Content uploaded by Ammar N. Hanoon

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TORSIONAL STRENGTHENING OF UNDER REINFORCED

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 reinforced concrete beams

Fiber Reinforced Polymer (FRP) has shown great promise as a state-of-the-art material in flexural and shear strengthening as external reinforcement, but information on its applicability in torsional strengthening is limited. No numerical modelling work currently exists in literature.

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STRENGTHENING OF REINFORCED CONCRETE BEAMS

2011-8-14  In current practice, torsional strengthening of concrete members is achieved by one of the following. methods; (1) increasing the m ember c ross-sectional area com bined with adding of transverse ...

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Torsional strengthening of thin walled tubular reinforced ...

2021-4-26  Torsional strengthening of thin walled tubular reinforced concrete elements, such as bridge box girders and spandrel beams, has received only limited attention, and investigations generally focus on the use of conventional strengthening methods such as span shortening, steel encasing, member enlargement, shotcrete etc.

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Torsional Strengthening of RC Beams with Continuous

2020-2-21  The strength of reinforced concrete members can be enhanced using externally bonded reinforcement (EBR) and near surface mounted (NSM) methods. However, small number of studies has adopted the NSM method for torsional strengthening. To date, no study has examined the use of spiral NSM steel wire rope and epoxy adhesives for torsional strengthening. Therefore, this study examines

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Torsional Capacity of CFRP Strengthened Reinforced ...

2007-2-1  Many buildings and bridge elements are subjected to significant torsional moments that affect the design, and may require strengthening. Fiber-reinforced polymer (FRP) has shown great promise as a state-of-the-art material in flexural and shear strengthening as external reinforcement, but information on its applicability in torsional strengthening is limited.

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TORSIONAL STRENGTHENING OF REINFORCED

The paper discusses an experimental investigation of the strengthening of the torsional resistance of reinforced concrete (RC) beams using fiber reinforced polymer (FRP) fabric. Eight beams were tested, with one designated as a control specimen while seven were strengthened using FRP wrapping of different configurations before they were tested.

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(PDF) Torsional Strengthening of Reinforced Concrete

Torsional Strengthening of Reinforced Concrete Beams with Externally-Bonded Fibre Reinforced Polymer An Energy Absorption Evaluation.pdf 2553-6899-1-PB.pdf Content uploaded by Ammar N. Hanoon

Get price

TORSIONAL STRENGTHENING OF UNDER REINFORCED

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 ...

Get price

Torsional strengthening of reinforced concrete beams

Fiber Reinforced Polymer (FRP) has shown great promise as a state-of-the-art material in flexural and shear strengthening as external reinforcement, but information on its applicability in torsional strengthening is limited. No numerical modelling work currently exists in literature.

Get price

STRENGTHENING OF REINFORCED CONCRETE BEAMS

2011-8-14  In current practice, torsional strengthening of concrete members is achieved by one of the following. methods; (1) increasing the m ember c ross-sectional area com bined with adding of transverse ...

Get price

TORSIONAL STRENGTHENING OF CONCRETE MEMBERS

The use of fibre-reinforced polymers (FRPs) with their notable mechanical properties has shown promise in this area and has been in the forefront of strengthening technology (Gosbell 2002). The use of carbon fibre-reinforced polymer (CFRP) materials is growing, especially to increase the resistance of reinforced concrete (RC) beams.

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Study of torsional behavior of reinforced concrete beams ...

2018-11-21  This paper investigates the strengthening of reinforced concrete (RC) beams for its torsional behavior using aramid fiber strips. Most of the time aramid fiber is used as an externally bonded reinforcement to increase flexural and shear strength of RC beams. An attempt is made to use it for improving torsional moment carrying capacity of RC beam. Torsional failure mostly occurs in

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(PDF) Torsional Behavior of Reinforced Concrete T Beams ...

The CFRP laminates will be used for strengthening previous to loading. The experimental work includes investigation of twelve reinforced concrete T beams tested under pure torsion. The first beam ...

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Analytical Study on the Torsional Behavior of Reinforced ...

In this study, an analytical approach was used to predict the full torsional response of RC beams strengthened with externally bonded fiber-reinforced cementitious matrix (FRCM) composite. The analytical model was based on the softened membrane model for torsion (SMMT) modified for fiber-reinforced polymer (FRP)-strengthened beams.

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Simplified Method of Determining Torsional Stability of ...

2 天前  Simplified Method of Determining Torsional Stability of the Multi-Storey Reinforced Concrete Buildings Author: Prashidha Khatiwada and Elisa Lumantarna Subject: This article proposes a simplified method for determining the elastic radius ratio of the multi-storey reinforced concrete building.

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