Evaluation of Bond-Slip Behavior in Precast Reinforced Concrete Beam-to-Column Connection using Finite Element Modeling

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IRANPOUR AMIN; Ebrahimpour Houman; RAHGOZAR REZA

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Journal Paper

Paper Information

Journal: JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING Year:2019 | Volume:6 | Issue:3 (26) Page(s): 159-174

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Information Journal Paper

Title

Evaluation of Bond-Slip Behavior in Precast Reinforced Concrete Beam-to-Column Connection using Finite Element Modeling

Author(s)

IRANPOUR AMIN | Ebrahimpour Houman | RAHGOZAR REZA | Issue Writer Certificate

Keywords

Precast concreteQ3

Beam-to-column connectionQ2

Finite element modelingQ1

Bond-slip behaviorQ1

Mechanical anchorageQ1

Abstract

In this paper, in order to numerically model the Bond-slip behavior ofembedded bars, an applicable procedure was proposed. To evaluate theefficiency of the proposed model, a credible experimental specimen was selected and modeled in Abaqus software. Comparing the numerical andexperimental results of the specimen confirmed the acceptable accuracy ofthe proposed model. Afterwards, two monolithic and precast reinforcedconcrete Beam-to-column connections were chosen from experimentaltests and were numerically simulated. Investigation on the precastspecimen showed that the required embedded length of longitudinal bars of beam was not considered. Hence, slippage of the longitudinal bars ofthe beam at the connection area led to degradation of connection strength. In order to consider this slippage in Finite element modeling, the proposed approach was employed. Analytical results showed a suitable agreementwith experimental ones and slippage of the beam bars was observed in the finite element analysis. Consequently, in order to prevent the slippage of beam bars, couplers at the end of the bars were used. Required area of thecouplers was calculated as such to develop yielding in longitudinal beambars. These couplers were added to the precast specimen and afterward, this specimen was named modified-precast specimen. Capacity of themodified-precast specimen including yielding load, ultimate load and ductility was improved in comparison with monolithic and precastspecimen. However, the ratios of ultimate moment to flexural strength in modified-precast and monolithic specimens are approximately equal toone, which shows the formation of flexural plastic hinge in the beams ofboth modified-precast and monolithic specimens.

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APA: Copy

IRANPOUR, AMIN, Ebrahimpour, Houman, & RAHGOZAR, REZA. (2019). Evaluation of Bond-Slip Behavior in Precast Reinforced Concrete Beam-to-Column Connection using Finite Element Modeling. JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING, 6(3 (26) ), 159-174. SID. https://sid.ir/paper/392833/en

Vancouver: Copy

IRANPOUR AMIN, Ebrahimpour Houman, RAHGOZAR REZA. Evaluation of Bond-Slip Behavior in Precast Reinforced Concrete Beam-to-Column Connection using Finite Element Modeling. JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING[Internet]. 2019;6(3 (26) ):159-174. Available from: https://sid.ir/paper/392833/en

IEEE: Copy

AMIN IRANPOUR, Houman Ebrahimpour, and REZA RAHGOZAR, “Evaluation of Bond-Slip Behavior in Precast Reinforced Concrete Beam-to-Column Connection using Finite Element Modeling,” JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING, vol. 6, no. 3 (26) , pp. 159–174, 2019, [Online]. Available: https://sid.ir/paper/392833/en

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