strengthening of reinforced concrete beams by using fiber

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Strengthening of reinforced concrete beams by using fiber ...

Sep 01, 2019  Flexural strengthening of reinforced concrete beams by mechanically attaching fiber-reinforced polymer strips J. Compos. Constr. , 8 ( 2004 ) , pp. 203 - 210 , 10.1061/(ASCE)1090-0268(2004)8:3(203)

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Strengthening of reinforced concrete beams by using fiber ...

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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STRENGTHENING OF REINFORCED CONCRETE BEAMS USING

Apr 01, 2007  Strengthening of Reinforced Concrete Beams using Glass Fiber Reinforced Polymer Composites 2009 1 Department of Civil Engineering, NIT Rourkela CHAPTER 1 INTRODUCTION 1.1 GENERAL The maintenance, rehabilitation and upgrading of structural members, is perhaps one of the most crucial problems in civil engineering applications.

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Shear Strengthening of Reinforced Concrete Beams Using ...

Apr 02, 2005  The CFRP system can significantly increase the serviceability, ductility, and ultimate shear strength of a concrete beam; thus, restoring beam shear strength by using CFRP is a highly effective technique. An analysis and design method for shear strengthening of externally bonded

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STRENGTHENING OF REINFORCED CONCRETE BEAMS

which one is the controlled beam and other two beams were strengthened by using continuous glass fiber reinforced polymer (GFRP) sheets in shear. Key Words – Strengthening, Reinforced concrete beams, Glass fiber reinforced polymer, Composites, Epoxy resin.

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STRENGTHENING OF REINFORCED CONCRETE BEAMS

Apr 01, 2007  Strengthening of Reinforced Concrete Beams using Glass Fiber Reinforced Polymer Composites 2009 1 Department of Civil Engineering, NIT Rourkela CHAPTER 1 INTRODUCTION 1.1 GENERAL The maintenance, rehabilitation and upgrading of structural members, is perhaps one of the most crucial problems in civil engineering applications.

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STRENGTHENING OF LIGHTWEIGHT REINFORCED

The objective of this research is to study the strengthening of lightweight concrete beams Fiber reinforced polymer. In this researchusing three types of , anchorage werediscussed : (1) without anchorage, (2) Anchor bolt, and (3) U-Wrap. In most cases, the failure of beams strengthened with FRP is due to debonding of the FRP

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Shear Strengthening of Reinforced Concrete Beams Using ...

Shear Strengthening of Reinforced Concrete Beams Using Fiber-Reinforced Polymer Wraps Pamalee A. Brady and Orange S. Marshall Studies have shown that fiber-reinforced polymer (FRP) wraps can improve the capacity of rectangular beam sections. This technology has potential application to highway bridges that may have less shear

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Parametric Study of Flexural Strengthening of Concrete ...

Nov 18, 2019  The strengthening method of using hybrid fiber reinforced polymer is an effective way to increase the strengthening efficiency and lower the cost. This paper focuses on simulating the flexural behavior of reinforced concrete beam strengthened by prestressed ...

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Torsional Strengthening of Reinforced Concrete Beams

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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Design of Fibre Reinforced Concrete Beams and Slabs

Concrete is a material that needs strengthening in tension in order to meet the structural requirements. New techniques of strengthening concrete, besides the usual ordinary reinforcement bars, are developing, creating a need for new design methods. Fibre reinforcement is a method that has been in use over the last 30 years, yet it is

Get price

Strengthening of heat-damaged steel fiber-reinforced ...

Abstract Retrofitting concrete with fiber-reinforced polymer (FRP) wrap has been considered as an effective method to compensate for the loss of the compressive strength of the concrete at an elevated temperature. This paper presents a study on the axial compressive behavior of heat-damaged steel fiber-reinforced concrete strengthened with carbon FRP (CFRP) wraps.

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Shear strengthening of reinforced concrete beams using ...

Feb 22, 2019  Moreover, strengthening RC beams with reinforced or non‐reinforced prefabricated UHPFRC plates was also investigated. Results show that UHPFRC plates significantly increased the maximum load capacity, ductility and mid span reinforcement strain of the strengthened RC beams comparing with reference beam failed in shear.

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Experimental evaluation of flexural behavior of High ...

In beams reinforced with HSSs like Fig. 5-b, the beam made by HPFRCCs had a relatively lower stiffness slope and ultimate strength than similar beams made with conventional concrete both beams had a reinforcement ratio close to the balance ratio demonstrated ductile tensile bending behaviors; and, the HPFRCC beams had much softer fragility as ...

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Fiber Reinforced Polymer Shear Strengthening of Reinforced ...

Nov 20, 2000  The paper aims to contribute to a better understanding and modeling of the shear behavior of reinforced-concrete (RC) beams strengthened with carbon fiber reinforced polymer (FRP) sheets. The study is based on an experimental program carried out on 11 beams with and without transverse steel reinforcement, and with different amounts of FRP shear strengthening.

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Strengthening of reinforced concrete shear walls using steel

Strengthening of reinforced concrete shear walls shear walls with openings strengthened with FRP wraps to with openings using carbon fiber-reinforced investigate their seismic response under the monotonic loads. The polymers proposed FE model has been validated using previous experimental data in literature.

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Flexural Strengthening of Reinforced Concrete Beams

Flexural FRP Strengthening of Concrete Bridges Using an Innovative Concept. Proceedings of the 9th IABMAS conference, Melbourne, 09-13 July 2018. Conference Paper III Yang J., Haghani R., and Al-Emrani M. (2017). Flexural strengthening of reinforced concrete beams using externally bonded FRP laminates prestressed with a new method.

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STRENGTHENING OF REINFORCED CONCRETE BEAMS

which one is the controlled beam and other two beams were strengthened by using continuous glass fiber reinforced polymer (GFRP) sheets in shear. Key Words – Strengthening, Reinforced concrete beams, Glass fiber reinforced polymer, Composites, Epoxy resin.

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

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 investigate the deflection and failure mechanism of RC beams using these strengthening materials. Highlights

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Torsional Strengthening of Reinforced Concrete Beams

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

Get price

Strengthening of Damaged Reinforced Concrete Beams Using ...

Nov 01, 2018  Keywords: Damaged Beams, Epoxy Injection, FRP Strengthening, Repair, Shear strengthening. Date: 11/1/2018. Abstract: This paper is part of an on-going research project on the behavior of damaged Reinforced Concrete (RC) beams repaired and strengthened with Externally Bonded Fiber Reinforced Polymer (EB-FRP).

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Parametric Study of Flexural Strengthening of Concrete ...

Nov 18, 2019  The strengthening method of using hybrid fiber reinforced polymer is an effective way to increase the strengthening efficiency and lower the cost. This paper focuses on simulating the flexural behavior of reinforced concrete beam strengthened by prestressed ...

Get price

Flexural Strengthening of Reinforced Concrete Beams Using ...

The most common method used to strengthening, rehabilitation or repairing of reinforced concrete (RC) members is to use external carbon fiber reinforced polymer (CFRP) sheets. CFRP can greatly improve the flexural and shear capacity of deteriorated members and therefore extends their useful life.

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Flexural Strengthening of Reinforced Concrete Beams Using ...

May 01, 2001  Title: Flexural Strengthening of Reinforced Concrete Beams Using Fasteners and Fiber-Reinforced Polymer Strips Author(s): Anthony J. Lamanna, Lawrence C. Bank, and David W. Scott Publication: Structural Journal Volume: 98 Issue: 3 Appears on pages(s): 368-376 Keywords: beam; polymer; repair; strength; tests. Date: 5/1/2001 Abstract: Current methods of flexural strengthening of reinforced ...

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Design of Fibre Reinforced Concrete Beams and Slabs

Concrete is a material that needs strengthening in tension in order to meet the structural requirements. New techniques of strengthening concrete, besides the usual ordinary reinforcement bars, are developing, creating a need for new design methods. Fibre reinforcement is a method that has been in use over the last 30 years, yet it is

Get price

Using Steel Fiber-Reinforced Concrete Precast Panels for ...

Jun 02, 2019  In this paper, the performances of reinforced concrete (RC) beams strengthened in shear with steel fiber-reinforced concrete (SFRC) panels are investigated through experiment, analytical computation, and numerical analysis. An experimental program of RC beams strengthened by using SFRC panels, which were attached to both sides of the beams, is carried out to investigate the effects of fiber ...

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Experimental evaluation of flexural behavior of High ...

In beams reinforced with HSSs like Fig. 5-b, the beam made by HPFRCCs had a relatively lower stiffness slope and ultimate strength than similar beams made with conventional concrete both beams had a reinforcement ratio close to the balance ratio demonstrated ductile tensile bending behaviors; and, the HPFRCC beams had much softer fragility as ...

Get price

Flexural Strengthening of Reinforced Concrete Beams

Flexural FRP Strengthening of Concrete Bridges Using an Innovative Concept. Proceedings of the 9th IABMAS conference, Melbourne, 09-13 July 2018. Conference Paper III Yang J., Haghani R., and Al-Emrani M. (2017). Flexural strengthening of reinforced concrete beams using externally bonded FRP laminates prestressed with a new method.

Get price

Strengthening of heat-damaged steel fiber-reinforced ...

Abstract Retrofitting concrete with fiber-reinforced polymer (FRP) wrap has been considered as an effective method to compensate for the loss of the compressive strength of the concrete at an elevated temperature. This paper presents a study on the axial compressive behavior of heat-damaged steel fiber-reinforced concrete strengthened with carbon FRP (CFRP) wraps.

Get price

FLEXURAL STRENGTHENING OF PRECAST CONCRETE

The following study investigated an efficient use of high strength fiber-reinforced concrete (HSFRC) on standard reinforced concrete beams. Two non-proprietary HSFRC mixes were developed and then applied as an external laminate to the tension face of reinforced concrete beams. Standard reinforcing bars were embedded within the laminate matrix.

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Strength Analysis of Reinforced Concrete Beams Affected by ...

Sep 15, 2016  The strengthening of repaired beams was achieved using glass fiber sheet with PP ECC (polypropylene engineered cementitious concrete) as binders. Numerical thermal stress analyses were carried out (ANSYS) for a thermal load of 300 °C.

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