This paper presents a simplified model for describing the response of a longitudinal bar embedded in concrete, taking into account the bond-slip phenomenon. The model is developed by assuming a linear bond-slip field along the bar anchorage length and provides a simplified stress-strain relationship to assign to the longitudinal reinforcement. The analytical approach adopted makes the proposed model very convenient from a computational standpoint because, unlike many other refined models, it does not require a multilevel iterative process. Moreover, the assumptions made are particularly appropriate for modeling bond-slip of smooth bars generally used in older reinforced concrete buildings. The implementation strategy of the proposed bond-slip model in general-purpose nonlinear structural analysis software and comparisons with experimental results are discussed in a companion paper. DOI: 10.1061/(ASCE)ST.1943-541X.0000587. (C) 2012 American Society of Civil Engineers.

Modified Steel Bar Model Incorporating Bond-Slip for Seismic Assessment of Concrete Structures / Braga, Franco; Gigliotti, Rosario; Michelangelo, Laterza; Michele, D'Amato; F., Braga; R., Gigliotti; Sashi, Kunnath; M., Laterza. - In: JOURNAL OF STRUCTURAL ENGINEERING. - ISSN 0733-9445. - STAMPA. - 138:11(2012), pp. 1342-1350. [10.1061/(asce)st.1943-541x.0000587]

Modified Steel Bar Model Incorporating Bond-Slip for Seismic Assessment of Concrete Structures

BRAGA, Franco;GIGLIOTTI, Rosario;
2012

Abstract

This paper presents a simplified model for describing the response of a longitudinal bar embedded in concrete, taking into account the bond-slip phenomenon. The model is developed by assuming a linear bond-slip field along the bar anchorage length and provides a simplified stress-strain relationship to assign to the longitudinal reinforcement. The analytical approach adopted makes the proposed model very convenient from a computational standpoint because, unlike many other refined models, it does not require a multilevel iterative process. Moreover, the assumptions made are particularly appropriate for modeling bond-slip of smooth bars generally used in older reinforced concrete buildings. The implementation strategy of the proposed bond-slip model in general-purpose nonlinear structural analysis software and comparisons with experimental results are discussed in a companion paper. DOI: 10.1061/(ASCE)ST.1943-541X.0000587. (C) 2012 American Society of Civil Engineers.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11573/444091
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