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Bond-slip behavior between concrete and deformed rebar

The mesh size of the deformed rebar is set to 4 mm. In order to truly reflect the local bond behavior of the interface between the deformed rebar and the concrete, the concrete was established with a mesoscale model. The propagation process of cracks in concrete can be better described by the mesoscale model.

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Bond-slip behavior between concrete and deformed rebar

The surface shape of rebar and the heterogeneity of concrete was considered. • Bond failure mechanism between deformed rebar and concrete was discussed. • The thickness to diameter ratio and temperature affect the bond behavior. • The calculation method of bond behavior at

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Bond-slip behavior between concrete and deformed rebar

Moreover, the bond failure mechanism between deformed rebar and concrete was discussed. Subsequently, the influence of thickness to diameter ratio, elevated temperature and

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Bond-slip behavior between concrete and deformed rebar

2021-6-28  Bond-slip behavior between concrete and deformed rebar at elevated temperature: Mesoscale simulation and International Journal of Mechanical Sciences ( IF 5.329) Pub Date : 2021-06-27, DOI: Liu JIN, Xiaoya LI, Renbo ZHANG, Xiuli DU

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Bond-Slip Behavior between Stainless Steel Rebars and

Maintenance of reinforced concrete structures is a prevailing topic, especially with regard to lifeline structures and bridges, many of which are now designed with a service life beyond 100 years. Reinforcement made of ordinary (carbon) steel may corrode in aggressive environments. Stainless steel,

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Bond-slip response of deformed bars in rubberised

2017-11-15  In normal concrete, the bond strength between deformed bars and concrete is developed by chemical adhesion and steel-concrete friction followed by the mechanical interlocking of the rebar ribs , . The mechanical bond resulting from the rebar ribs-concrete keys interaction produces ring/burst forces and splitting cracks which may produce failure ...

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Bond-slip behaviors between reinforced concrete and

The bonding strength between coated rebar and concrete decreases with the increase of rebar diameter. The numerical model of the coated steel bar and the concrete beam is established by ANSYS software. The bond-slip curves of coated steel bar and concrete obtained by simulation can well describe the curves measured by the experiment.

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Bond-slip behavior between pre-corroded rebar and steel ...

Three groups of 150×150×150 mm 3 concrete substrate embedded with steel bars were prepared to investigate the bond-slip behavior between LC 3 concrete and steel rebar, in comparison with that ...

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Bond-slip behavior between pre-corroded rebar and steel ...

2018-9-10  Bonding between rebar and concrete is a foundation in reinforced concrete (RC) structures. For RC structures subjected to long-term carbonation and chloride corrosion, bond of steel bar and the surrounding concrete is first improved due to the filling effect of corrosion product, and then reduces due to corrosion-induced cover cracking,.

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Bond-slip properties between lightweight aggregate ...

The bond-slip behavior of reinforcing bars in lightweight aggregate concrete (LWAC) was investigated. Effects of different concrete strengths (39.4, 48.7, 62.7 and 83.2 MPa), diameters of ...

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Bond-slip behaviors between reinforced concrete and

Bond-slip behavior is a complex interaction between steel bar and concrete, which significantly affects the bearing capacity of the reinforced concrete structures. Considering the practical difficulty to accurately measure the strain of coated rebar in structure, a reliable in-situ test method of integrated strain gauges is proposed to measure ...

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Bond-slip Behavior Between Geopolymer Concrete and ...

2020-8-9  In this study, the bond‐slip behavior between GPC and steel reinforcement bars will be investigated by performing pull‐out test in order to define a new more suitable bond stress law. In particular, two different factors affecting bond strength will be focused, namely the bar diameter and the chemical composition of geopolymer.

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Bond-slip behaviors between reinforced concrete and

Abstract Bond-slip behavior is a complex interaction between steel bar and concrete, which significantly affects the bearing capacity of the reinforced concrete structures. Considering the practical difficulty to accurately measure the strain of coated rebar in structure, a reliable in-situ test method of integrated strain gauges is proposed to measure the strain of coated steel in this study.

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Bond-slip response of deformed bars in rubberised

2018-8-10  In normal concrete, the bond strength between deformed bars and concrete is developed by chemical adhesion and steel-concrete friction followed by the mechanical interlocking of the rebar ribs [18-19]. The mechanical bond resulting from the rebar ribs-concrete keys interaction produces

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Bond-Slip Behavior between Stainless Steel Rebars and

Maintenance of reinforced concrete structures is a prevailing topic, especially with regard to lifeline structures and bridges, many of which are now designed with a service life beyond 100 years. Reinforcement made of ordinary (carbon) steel may corrode in aggressive environments. Stainless steel, being much more resistant to corrosion, is a valid solution to facilitate the protection of the ...

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Bond Behaviors Between Full-Recycled-Aggregate

According to previous studies [24][25][26][30] [31] [32][33], the bond force between deformed steel bar and concrete is made up of three parts: the friction force, chemical adhesive force, and ...

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3D FINITE ELEMENT MODELLING OF BOND-SLIP

2009-11-6  between different components of reinforced concrete member has a primordial role and its negligence conducted to poor structural response. Therefore, for modeling 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.

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Bond-slip behavior and constitutive model between rebar ...

Bond-slip behavior and constitutive model between rebar and steel fibre reinforced concrete May 2015 Jianzhu Jiegou Xuebao/Journal of Building Structures 36(7):132-139

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Bonding Behavior of Deformed Steel Rebars in Sustainable ...

In order to assess the bond behavior of deformed steel rebars in recycled-aggregate concrete (RAC) incorporating both fine and coarse recycled aggregate, pull-out tests were carried out in this study on 16-mm diameter deformed steel rebars embedded concentrically in RAC. The concrete was designed us

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Bond Behavior between Steel Rebar and RCA Concrete

2020-2-10  To explore the bond behavior between steel rebar and recycled coarse aggregate (RCA) concrete after exposure to elevated temperatures, an experimental study was carried out. The results demonstrated that the bond strength of RCA concrete pullout specimens decreased greatly with increasing temperature. As the exposure temperature elevated, the slope of the ascending portion of the bond-slip ...

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Bond-slip Behavior Between Geopolymer Concrete and ...

2020-8-9  In this study, the bond‐slip behavior between GPC and steel reinforcement bars will be investigated by performing pull‐out test in order to define a new more suitable bond stress law. In particular, two different factors affecting bond strength will be focused, namely the bar diameter and the chemical composition of geopolymer.

Get Price

Bond-slip behaviors between reinforced concrete and

Abstract Bond-slip behavior is a complex interaction between steel bar and concrete, which significantly affects the bearing capacity of the reinforced concrete structures. Considering the practical difficulty to accurately measure the strain of coated rebar in structure, a reliable in-situ test method of integrated strain gauges is proposed to measure the strain of coated steel in this study.

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BOND STRESS-SLIP BEHAVIOR BETWEEN CONCRETE AND

CICM 2015 First International Conference on Advances in Civil Infrastructure and ConstructionMaterials MIST, Dhaka, Bangladesh, 14–15December 2015 BOND STRESS-SLIP BEHAVIOR BETWEEN CONCRETE AND STEEL REBAR VIA PULLOUT TEST: EXPERIMENTAL AND FINITE ELEMENT ANALYSYS M.R. KABIR1, M.M. Islam2 and M.A. Chowdhury3 1,3 Lecturer, Department of Civil

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Mesoscale simulation of bond behaviors between

2021-8-10  23 However, bond action between concrete and deformed bars is a three -dimensional issue where hoop 24 stresses in concrete exist to resist the outward component of the interactive pressure between rebar 25 and concrete. Thus, the 2D plane stress/strain RBSM program could no longer be applied [8, 9, 21,

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Bond behaviour between recycled aggregate concrete and ...

2013-4-18  The results of thirty pullout tests carried out on 8 and 10 mm diameter deformed steel bars concentrically embedded in recycled aggregate concrete designed using equivalent mix proportions with coarse recycled concrete aggregate (RCA) replacement percentages of 0, 25, 50, 75 and 100 % are reported towards investigation of bond behaviour of RCA concrete.

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Bonding Behavior of Deformed Steel Rebars in Sustainable ...

In order to assess the bond behavior of deformed steel rebars in recycled-aggregate concrete (RAC) incorporating both fine and coarse recycled aggregate, pull-out tests were carried out in this study on 16-mm diameter deformed steel rebars embedded concentrically in RAC. The concrete was designed us

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BOND-SLIP BEHAVIOR OF REINFORCEMENT IN NSC AND

The current study focuses on bondslip behavior of deformed steel bars in normal and in high strength concrete (NSC and HSC), with and without fibers. This paper describes the first stage of the study, which consists of pullout tests of deformed steel bars of different diameters from large cylindrical specimens made of NSC and HSC.

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Analysis of bond-slip between concrete and steel bar in fire

2016-1-19  fire. In the case when deformed bars are used, stresses are transferred mainly by mechanical interaction between the rebar’s ribs and the adjacent concretes. Also, the friction does not occur until there is a slip between the steel bars and concrete [3-6].

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Experimental Study on Bond Behavior between Plain ...

2015-10-4  To evaluate the bond behavior between the reinforcing bar and surrounding concrete, a total of six-group pullout specimens with plain steel bars and two-group specimens with deformed steel bars, serving as a reference, are experimentally investigated and presented in this study. The main test parameters of this investigation include embedment length, surface type of reinforcing bars, and bar ...

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Bond Behaviors Between Full-Recycled-Aggregate

Introduction: Full-recycled-aggregate concrete (aRAC) is a new concrete reusing 100% fine and coarse recycled aggregates produced from waste concrete of demolished concrete structures. As there is a lack of studies on the bond behavior between steel bar and aRAC, findings of this study are of significance for the structural application of aRAC.

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