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a mechanical bond model for reinforcing bar in concrete

a mechanical bond model for reinforcing bar in concrete

A mechanical bond model for reinforcing bar in concrete ...

Bond performance of reinforcing bar with diameter of 10 mm and 12 mm in concrete was investigated under reversed cyclic loading. •Analytical model of the maximum bond stress was derived by combining thick-walled cylinder model and the tensile stress-strain model of concrete.

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A mechanical bond model for reinforcing bar in concrete ...

A mechanical bond model for reinforcing bar in concrete subjected to monotonic and reversed cyclic loading

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A new bond model for reinforcing bars in steel fibre ...

Nov 01, 2019  1. Introduction. Bond between reinforcing bars and concrete is vital in all reinforced concrete structures for developing composite action [, , , ].Serviceability, durability and safety considerations demand improvement of the rebar-concrete bond so as to control concrete cracking under servicing conditions, and mitigate bond degradation and increase energy dissipation under

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CHAPTER 4: CONCRETE-STEEL BOND MODEL

ment, the reinforcing bar and the lugs on the bar (Figure 4.1). A model developed to repre-sent bond at a particular scale requires a unique set of data and is appropriate for combination with a unique set of material models. In the current investigation, bond is represented at the scale of the reinforcing bar. Development of a bond model at ...

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Modeling Uniaxial Bond Stress–Slip Behavior of Reinforcing ...

Feb 07, 2021  1. Introduction. Reinforced concrete (RC) is a composite material that has been widely used in civil engineering due to its advantages such as durability, fire resistance, and cost effectiveness [].The structural performance of RC members mainly depends on a sufficient bond between the reinforcing bars and the surrounding concrete [2,3].For RC members, the characteristic of bond slip

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Probabilistic bond strength model for reinforcement bar in ...

Jul 01, 2020  The proposed probabilistic bond strength model provides a probabilistic way to calibrate traditional deterministic models for bond strength of reinforcement bar in concrete. Calibration shows that the accuracy of the ACI-2003 model and the fib -2010 model are generally satisfied, while the GB-2010 model and the AS-1994 model usually ...

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Effect of Corrosion on Rebar Mechanical Properties on Bond ...

bar surface (Cairns and Abdullah, [4]), interlock mechanism concrete with surrounding reinforcing bar interfaces. Charles et al. [5] Investigated and evaluated the effect of corrosion on the bond between the reinforcing steel and concrete interface of corroded and resins/exudates coated reinforcement with ficus glumosa extracts from trees.

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CHAPTER 4: CONCRETE-STEEL BOND MODEL

ment, the reinforcing bar and the lugs on the bar (Figure 4.1). A model developed to repre-sent bond at a particular scale requires a unique set of data and is appropriate for combination with a unique set of material models. In the current investigation, bond is represented at the scale of the reinforcing bar. Development of a bond model at ...

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Modeling of bonding between steel rebar and concrete at ...

Feb 01, 2012  A mechanical model of bonding between steel rebar and concrete at elevated temperatures is proposed based on the smear crack theory and the thick-wall cylinder in its partially cracked elastic stage. The relationship between the splitting bond strength and the inner crack radius of the concrete is established by taking into account the ...

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3D FINITE ELEMENT MODELLING OF BOND-SLIP BETWEEN

of reinforced concrete structures one needs a simple and realistic bond-slip model. There are various finite element models for bond-slip relationship between reinforcement and concrete. In this paper, modeling of the transition region between steel and concrete as a cohesion layer in the finite element program (Ansys) is discussed.

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O Modelling bond between corroded reinforcement and

Fracture Mechanics of Concrete Structures, de Borst et al (eds)© 2001 Swets Zeitlinger, Lisse, ISBN 90 2651 825 O Modelling bond between corroded reinforcement and concrete

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Probabilistic bond strength model for reinforcement bar in ...

Jul 01, 2020  The proposed probabilistic bond strength model provides a probabilistic way to calibrate traditional deterministic models for bond strength of reinforcement bar in concrete. Calibration shows that the accuracy of the ACI-2003 model and the fib -2010 model are generally satisfied, while the GB-2010 model and the AS-1994 model usually ...

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Experimental Investigation and Modeling of the Bond ...

Jun 25, 2016  For this application, interfacial properties between the reinforcing bar (rebar) and surrounding concrete play a major role in the mechanical performance of the reinforced concrete structure. This chapter investigates the bond behavior of commercially available AFRP rebars embedded in concrete.

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Mechanical characterisation for numerical simulation of ...

A mechanical bond model for reinforcing bar in concrete subjected to monotonic and reversed cyclic loading Journal of Building Engineering, Volume 44, 2021, Article 102912 Show abstract

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Modeling Uniaxial Bond Stress Slip Behavior of Reinforcing ...

The structural performance of RC members mainly depends on a sufficient bond between the reinforcing bars and the surrounding concrete [2,3]. For RC members, the characteristic of bond slip is the difference in material strain at a certain point along the reinforcing bar.

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Bond behaviour of reinforcing bars in UHPFRC SpringerLink

May 21, 2015  This paper deals with the experimental determination of the bond behaviour between ultra-high performance fiber-reinforced concrete (UHPFRC) and reinforcing bars (rebars). An experimental campaign has been carried out to assess the bond behaviour considering different rebar diameters, different embedment lengths and different concrete covers. A relationship between bond

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Experimental Study on Bond Behavior between Plain ...

Oct 04, 2015  As is known, the bond strength of deformed bars consists of three parts: (1) adhesion between the concrete and the reinforcing bar; (2) fraction between the reinforcing bar and the surrounding concrete; and (3) mechanical interlock for the roughness of bar surface, and the bond strength mainly depends on mechanical interlock.

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State-of-the-art review on the bond properties of corroded ...

Jul 20, 2019  Bond at the steel-concrete interface is a critical property of reinforced concrete (RC). It enables the force transfer from reinforcing steel bar into concrete and guarantees the composite action of RC members. The bond stress includes three components: chemical adhesion, friction and mechanical interlock (see Fig. 1) . The chemical adhesion is ...

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The Effect of Material Degradation on Bond Properties of ...

May 01, 1998  The American Concrete Institute. Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete

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Bond between Steel Reinforcement Bars and Seawater Concrete

In addition, the bonding strength of steel bar embedded in seawater concrete is lower by 4.34% as compared to the bonding strength of steel bar embedded in normal concrete at water-cement ratio (w/c) of 0.55. Doi: 10.28991/cej-2020-SP(EMCE)-06. Full Text: PDF

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Bond Mechanism of NSM FRP Bars for Flexural Strengthening ...

Bond of reinforcing FRP bars, strips and sheets to concrete is a critical factor that controls the structural performance of concrete members strengthened with FRP. Up-to-date, limited research has been reported on the bond behavior of near surface mounted (NSM) FRP reinforcement.

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Experimental Investigation and Modeling of the Bond ...

Jun 25, 2016  For this application, interfacial properties between the reinforcing bar (rebar) and surrounding concrete play a major role in the mechanical performance of the reinforced concrete structure. This chapter investigates the bond behavior of commercially available AFRP rebars embedded in concrete.

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Chapter 10. BOND AND ANCHORAGE - Memphis

Reinforcement for concrete to develop the strength of a section in tension depends on the ... Mechanical anchorage effect of the ends of bars through development length, splicing, hooks, and crossbars 6. Diameter, shape, and spacing of reinforcement as they affect crack development ... bond problem than large bars. Smaller bars require less ...

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Modeling Uniaxial Bond Stress Slip Behavior of Reinforcing ...

The structural performance of RC members mainly depends on a sufficient bond between the reinforcing bars and the surrounding concrete [2,3]. For RC members, the characteristic of bond slip is the difference in material strain at a certain point along the reinforcing bar.

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The bond behaviour between concrete and corroded ...

interaction between concrete and reinforcing steel bar, which enables the force transfer and the compatibility of deformation between ing reinforc steel bar and the surrounding concrete. PIt is made up of three components: chemical adhesion, friction and mechanical interaction. For deformed steel bars, bond depends primarily on the mechanical

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TENSION STIFFENING MODEL FOR REINFORCED

2.2 Steel-Concrete Bond Figure 2.3 shows a picture of a steel-concrete bond. The bond between steel and concrete has three main components: chemical adhesion, friction and mechanical interlock (Wang and Liu 2003). Chemical adhesion is the original bond developed between concrete

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Materials Free Full-Text Modeling Local Bond Stress ...

In RC structures, the bond-slip effect between the reinforcing bars and the concrete has a significant effect on the mechanical and seismic performance of the structure and members . On the one hand, the quality of the bond performance directly affects the structure’s deflection, ultimate bearing capacity, crack width, and distribution [ 3 ].

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Bond between Steel Reinforcement Bars and Seawater Concrete

In addition, the bonding strength of steel bar embedded in seawater concrete is lower by 4.34% as compared to the bonding strength of steel bar embedded in normal concrete at water-cement ratio (w/c) of 0.55. Doi: 10.28991/cej-2020-SP(EMCE)-06. Full Text: PDF

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Influence of concrete strength and diameter of reinforcing ...

Influence of concrete strength and diameter of reinforcing bar 106 reinforcing bars into two halves and placing in two opposite sides of the cross section to study the local slip, secondary cracking and strain distribution in concrete surrounding the interface. Soroushian and Choi [2] reported on local bond

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The Effect of Material Degradation on Bond Properties of ...

May 01, 1998  The American Concrete Institute. Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete

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Canbaz Fracture patterns and mechanical properties of ...

Experimental investigations on the bond behavior between concrete and FRP reinforcing bars. Construction and Building Materials, 173, 136-148. Tepfers R (2006). Bond clause proposals for FRP bars/rods in concrete based on CEB/FIP Model Code 90. Part 1: Design bond stress for FRP reinforcing bars. Structural Concrete, 7, 47-55.

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Experimental Study on Bond Behavior between Plain ...

Oct 04, 2015  As is known, the bond strength of deformed bars consists of three parts: (1) adhesion between the concrete and the reinforcing bar; (2) fraction between the reinforcing bar and the surrounding concrete; and (3) mechanical interlock for the roughness of bar surface, and the bond strength mainly depends on mechanical interlock.

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Bond-Slip Behavior of Basalt Fiber Reinforced Polymer Bar ...

Basalt Fiber Reinforced Polymer (BFRP) bars have bright potential application in concrete structures subjected to marine environment due to their superior corrosion resistance. Available literatures mainly focused on the mechanical properties of BFRP concrete structures, while the bond-slip behavior of BFRP bars, which is a key factor influencing the safety and service life of ocean concrete ...

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Bond strength of deformed bar embedded in steel ...

Generally, bar shape determines the strength of the bond that will form between the reinforcing bar and concrete; where deformed bars have been established to form the strongest bond. It is widely acknowledged that the bond response between deformed bar and the surrounding concrete plays a crucial role in determining the mechanical behavior of ...

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