Analytical Modeling of the Pre- and Postyield Behavior of Bond in Reinforced Concrete

Ruiz, Miguel Fernández; Muttoni, Aurelio; Gambarova, Pietro G.

doi:10.1061/(asce)0733-9445(2007)133:10(1364)

Cited by 93 publications

(55 citation statements)

References 4 publications

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“…According to (4), (5) and (7) the stress contributed by the damaged and undamaged parts of micro plane (k) iŝ…”

Section: Formulation Of the Interface Constitutive Lawmentioning

confidence: 99%

“…This interaction has been widely investigated from both a theoretical and an experimental point of view in the past decades [1][2][3][4]. These studies highlight that in the presence of deformed bars with interlocking ribs the transfer mechanisms involved are rather complex and are characterized by damaging phenomena which may occur at different scales.…”

Section: Introductionmentioning

confidence: 99%

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Bond‐slip analysis via a thermodynamically consistent interface model combining interlocking, damage and friction

Serpieri¹,

Alfano²

2010

Numerical Meth Engineering

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SUMMARYA thermodynamics-based cohesive-zone interface formulation combining adhesion, friction and interlocking is illustrated. Interlocking is modeled exploiting a macroscopic description, which represents the geometry of the interface in the form of a periodic arrangement of distinct microplanes, denoted by Representative Interface Element (RIE). The interaction within each of these surfaces is governed by the combined damage-friction interface formulation proposed by Alfano and Sacco (Int. J. Numer. Meth. Engng 68(5):542-582). Although a simple damage law combined with Coulomb friction and no dilatancy is introduced on each individual microplane, the overall dilatant and hysteretic nature of the bond-slip is predicted as a result of the interaction induced by the presence of the microstructure of the RIE. The formulation is investigated by performing sensitivity analyses and is validated by evaluating its performance in the simulation of pull-out tests under controlled confining pressure. The results of a structural simulation of a pull-out test under variable amplitude repeated loading are also reported.

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“…According to (4), (5) and (7) the stress contributed by the damaged and undamaged parts of micro plane (k) iŝ…”

Section: Formulation Of the Interface Constitutive Lawmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bond‐slip analysis via a thermodynamically consistent interface model combining interlocking, damage and friction

Serpieri¹,

Alfano²

2010

Numerical Meth Engineering

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“…The bond stresses increase together with the value of slip, whereas at the ends of segments the bond stresses diminish until they reach zero at the location of the cracks, where the slip changes direction and the absolute value of it is the largest. This effect can be explained by the presence of localized concrete damage near the crack plane, which significantly reduces the bond action (Ruiz 2007).…”

Section: Behaviour Of a Reinforced Concrete Tiementioning

confidence: 99%

A new method for formulating crack spacing models of RC ties

Kaklauskas¹,

Ramanauskas²,

Jakubovskis³

et al. 2015

Proceedings of the Second International Conference on Performance-Based and Life-Cycle Structural Engineering (PLSE 2015)

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Cracking of concrete is one of the most complicated phenomena in reinforced concrete analysis and is one of the key aspects governing serviceability analysis of RC structures. Current methods for investigating cracking rely on empirical approaches that give unreliable results with errors of multiple times the real value. A new non-empirical method based on the combination of the stress-transfer and the smeared approaches is proposed for deriving crack spacing models. The stress-transfer approach governs the strain distribution of the reinforcement between the consecutive cracks whereas the smeared approach allows for the estimation of the mean strain of the element. The suggested method introduces the concept of damage zones: the bond in the area adjacent to the normal cracks is considered to be fully damaged, thus bond behaviour is non-uniform in the segment between cracks. Crack spacing models were derived using the load-strain analysis method presented in the Eurocode 2 and were shown to give results that are in good agreement with the crack spacing values taken from available experimental data.

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“…At monotonic pullout tests, a so-called local bond stress-slip relationship of a differential bond length is purposely created, which forms the basis for calculating long bond lengths (solution of the differential equation of the non-rigid bond by means of gradual [3,4], or closed [5,6] integration). This local bond stress-slip curve approximately equates to the bond stress-slip relation of one point within the bond area.…”

Section: Slip Development At Monotonic Testsmentioning

confidence: 99%