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Strengthening of reinforced concrete beams using ultra

Strengthening of reinforced concrete beams using ultra

Strengthening of reinforced concrete beams using ultra ...

Jan 01, 2016  Lampropoulos A, Paschalis S, Tsioulou O, Dritsos S. Strengthening of existing reinforced concrete beams using ultra high performance fibre reinforced concrete. In: International Conference on Concrete Repair, Rehabilitation and Retrofitting

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Strengthening of Reinforced Concrete Beams using Ultra ...

2. Reinforced Concrete Beams prior to strengthening: Numerical modelling and experimental validation The Initial, prior to strengthening, Beam (IB) examined in this study is based on a previous experimental program [7]. Initial Beam’s cross sectional dimensions were 150 mm by 250 mm and the length was equal to 2200mm.

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Strengthening of reinforced concrete beams using ultra ...

In this study the efficiency of the use of Ultra High Performance Fibre Reinforced Concrete (UHPFRC) for the strengthening of existing Reinforced Concrete (RC) beams has been investigated.

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Flexural strengthening of reinforced concrete beams or ...

Feb 15, 2020  Strengthening of reinforced concrete beams using ultra high performance fibre reinforced concrete (UHPFRC) Eng Struct , 106 ( 2016 ) , pp. 370 - 384 , 10.1016/j.engstruct.2015.10.042 Article Download PDF View Record in Scopus Google Scholar

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Shear strengthening of RC beams using ultra-high-strength ...

Sep 01, 2015  This paper proposes a new shear strengthening method for reinforced concrete (RC) beams, in which ultra-high-strength fibre-reinforced concrete (UFC) panels are bonded to existing structural members, and studies the strengthening effects of the method.

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Strengthening of reinforced concrete beams using ultra ...

In this study the efficiency of the use of Ultra High Performance Fibre Reinforced Concrete (UHPFRC) for the strengthening of existing Reinforced Concrete (RC) beams has been investigated.

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Shear strengthening of RC beams using ultra-high-strength ...

This paper proposes a new shear strengthening method for reinforced concrete (RC) beams, in which ultra-high-strength fibre-reinforced concrete (UFC) panels are bonded to existing structural members, and studies the strengthening effects of the method.

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STRENGTHENING DAMAGED REINFORCED CONCRETE

polymer (CFRP) plates to strengthen damaged reinforced concrete beams and slender columns. In the first phase, two different pre-repair loading histories were simulated in seven 3000x300x150 mm reinforced concrete beams, namely cracking within the elastic range, and overloading in

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ULTRA-HIGH STRENGTH STEEL FIBER REINFORCED

Y.C. Wang M.G. Lee: Ultra-High Strength Steel Fiber Reinforced Concrete for Strengthening of RC Frames 213 1000 cycles of abrasion, the abrasion reduction by weight for the NC cylinders was 32% and 68%, respectively, and for UFC it was 5% and 8%, respectively. In other words the abrasion resistance of

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FLEXURAL STRENGTH OF FIBROUS ULTRA HIGH

FLEXURAL STRENGTH OF FIBROUS ULTRA HIGH PERFORMANCE REINFORCED CONCRETE BEAMS Wasan I. Khalil1 and Tayfur Y. R.2 1Building and Construction Engineering Department, University of Technology, Baghdad, Iraq 2Structural Engineering, Sulaimaniyah, Iraq E-Mail: [email protected] ABSTRACT

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(PDF) Strengthening of reinforced concrete beams in ...

Jul 17, 2021  Strengthening of reinforced concrete beams in flexural using FRP-1.pdf. Content uploaded by Abelaziz Elbrmawy. Author content. All content in this area was uploaded by Abelaziz Elbrmawy on Jul 17 ...

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STRENGTHENING OF RINFORCED CONCRETE BEAMS - The

Fig.2- Strengthening a beam without increasing cross sectional area. II-INCREASING BOTH THE REINFORCING STEEL BARS AND THE CROSS - SECTIONAL AREA OF CONCRETE This solution is chosen when both the steel and concrete are not able to carry the additional loads applied to the beam.In such cases the following steps should be followed as in Fig 3.1. Removing the concrete cover, roughing the beams ...

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Strengthening and Repair of Reinforced Concrete Beams ...

Jun 06, 2013  Strength and Ductility of Concrete Beams Reinforced with Carbon Fiber-Reinforced Polymer Plates and Steel Journal of Composites for Construction January 2004 Flexural Strengthening of RC Beams with Prestressed CFRP Sheets: Using Nonmetallic Anchor Systems

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Flexural strengthening of reinforced concrete beam using a ...

Nov 16, 2020  Alam A, Nouri K, Jumaat MZ, Muda ZC, Flexural strengthening of reinforced concrete beam using jute rope composite plate, In: 3rd Natl. Grad. Conf., 2015. 21. Alam MA, Al Riyami K (2018) Shear strengthening of reinforced concrete beam using natural fibre reinforced polymer laminates. Constr Build Mater 162:683–696.

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Strengthening of Reinforced Concrete Beam (RC Beam)

Mar 03, 2018  Strengthening of RCC beams. The need for strengthening a reinforced concrete beam or a number of beams in a structure is usually caused by problems due to degradation of characteristics of materials with time, reduction in cross section, corrosion, wrong initial design or the increase in the load demand on the building when its utilized for a new purpose other than it was

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Experimental and Numerical Investigation of Shear Behavior ...

Jan 25, 2019  This paper presents a study on the shear behavior of reinforced concrete (RC) beams strengthened by jacketing the surfaces of the beams using ultra-high performance fiber reinforced concrete (UHPC). The surfaces of the RC beams were prepared by sandblasting and UHPC was cast in situ over the surfaces of RC beams. The beams were strengthened using two different strengthening

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

high performance concrete (HPC), high strength concrete (HSC), ultra-high performance concrete (UHPC), steel fiber-reinforced high strength lightweight self-compacting concrete (SHLSCC), fabrics reinforced cementitious material (FRCM) and so on have been used to strengthen ... RC beams using various fiber-reinforced cementitious materials ...

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Modeling shear strength of medium- to ultra-high-strength ...

Jul 12, 2021  The shear failure of reinforced concrete beams with stirrups is a common concern of structural engineers (Collins et al. 2008; Sagaseta and Vollum 2011; Słowik 2014).However, it is difficult to predict the shear failure accurately due to the influence of a large number of parameters, such as stirrup spacing, width and effective depth of the beam, shear span-to-depth ratio, stirrup ratio ...

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Exploitation of Ultrahigh-Performance Fibre-Reinforced ...

Jan 28, 2018  The repair and strengthening of reinforced concrete members are very important due to several factors, including unexpected increases in load levels and/or the damaging impact of aggressive environmental conditions on structural concrete members. Many researchers have turned to using materials for the repair and strengthening of damaged structures or the construction of new concrete

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Shear strengthening of RC beams using ultra-high-strength ...

Jul 13, 2015  This paper proposes a new shear strengthening method for reinforced concrete (RC) beams, in which ultra-high-strength fibre-reinforced concrete (UFC) panels are bonded to existing structural members, and studies the strengthening effects of the method.

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

high performance concrete (HPC), high strength concrete (HSC), ultra-high performance concrete (UHPC), steel fiber-reinforced high strength lightweight self-compacting concrete (SHLSCC), fabrics reinforced cementitious material (FRCM) and so on have been used to strengthen ... RC beams using various fiber-reinforced cementitious materials ...

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BEHAVIOR OF REINFORCED HIGH AND ULTRA HIGH

reinforced ultra-high strength concrete (UHSC)/ultra-high performance concrete (UHPC). The effects of various parameters such as concrete types, concrete strength (ranging from 70 MPa to 180 MPa) and , shear span-depth ratio (afd) on strength characteristics of reinforced beams with shear and longitudinal reinforcements are studied.

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STRENGTHENING OF RINFORCED CONCRETE BEAMS - The

Fig.2- Strengthening a beam without increasing cross sectional area. II-INCREASING BOTH THE REINFORCING STEEL BARS AND THE CROSS - SECTIONAL AREA OF CONCRETE This solution is chosen when both the steel and concrete are not able to carry the additional loads applied to the beam.In such cases the following steps should be followed as in Fig 3.1. Removing the concrete cover, roughing the beams ...

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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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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

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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Experimental Study on Shear Strengthening of Reinforced ...

investigated after strengthening by using different techniques of concrete jacketing. The techniques used in this study to enhance the behavior of the beams were by using self-compact, steel fiber reinforced concrete, and ferrocement jacketing. The salient feature of this study is that various

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Exploitation of Ultrahigh-Performance Fibre-Reinforced ...

Jan 28, 2018  The repair and strengthening of reinforced concrete members are very important due to several factors, including unexpected increases in load levels and/or the damaging impact of aggressive environmental conditions on structural concrete members. Many researchers have turned to using materials for the repair and strengthening of damaged structures or the construction of new concrete

get price

Flexural capacity of singly reinforced beam with 150 MPa ...

The reinforced ultra-high-strength-concrete beam subjected to flexural moment behaves more brittleness than the reinforced moderate strength concrete beam with equal reinforcement ratio (ρ/ρb, ρb=balanced steel ratio). In this study, 10 singly reinforced rectangular beam specimens using 150 MPa concrete

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Modeling shear strength of medium- to ultra-high-strength ...

Experimental database containing 173 SFRC beams without stirrups (having concrete compressive strength ranging from 20.6 to 175 MPa, classified as medium-strength, high-strength and ultra-high-strength concrete beams) and steel fiber of various shapes (hooked, crimped and straight/plain) is used to develop an ANN model.

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Rehabilitation and strengthening of concrete structures ...

Rehabilitation and strengthening of concrete structures using Ultra-High Performance Fibre Reinforced Concrete E. Brühwiler Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland ABSTRACT: An original concept is presented for the durable rehabilitation and strengthening of con-crete structures.

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Modeling shear strength of medium- to ultra-high-strength ...

Jun 21, 2016  This paper presents an approach for the prediction of the shear strength of steel fiber-reinforced concrete (SFRC) beams using artificial neural network (ANN) model developed based on existing experimental results. Experimental database containing 173 SFRC beams without stirrups (having concrete compressive strength ranging from 20.6 to 175 MPa, classified as medium-strength, high-strength

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Shear Strengthening of Prestressed Concrete Beams with ...

in practice for strengthening of concrete structures -reinforced or prestressed, various factors limit their efficiency and performance. Use of novel concrete-based materials such as Ultra High Performance Fibre Reinforced Composite (UHPFRC) can lead to an effective strengthening

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