A new constitutive model for the representation of the seismic behaviour of steel bars including hardening phenomena is presented. The model takes into account relative slip between bars and concrete, necessary for the estimation of the structural behaviour of r.c. elements and of the level of strain induced by earthquakes on bars. The present work provides the analytical formulation of the post-yielding behaviour of reinforcements, resulting in a continuous axial stress-slip relationship to be implemented in engineering software. The efficacy of the model is proved through the application to a cantilever column, for whose bars the constitutive law is derived.

Hardening slip model for reinforcing steel bars / Braga, Franco; Caprili, Silvia; Gigliotti, Rosario; Salvatore, Walter. - In: EARTHQUAKES AND STRUCTURES. - ISSN 2092-7614. - 9:3(2015), pp. 503-539. [10.12989/eas.2015.9.3.503]

Hardening slip model for reinforcing steel bars

GIGLIOTTI, Rosario;
2015

Abstract

A new constitutive model for the representation of the seismic behaviour of steel bars including hardening phenomena is presented. The model takes into account relative slip between bars and concrete, necessary for the estimation of the structural behaviour of r.c. elements and of the level of strain induced by earthquakes on bars. The present work provides the analytical formulation of the post-yielding behaviour of reinforcements, resulting in a continuous axial stress-slip relationship to be implemented in engineering software. The efficacy of the model is proved through the application to a cantilever column, for whose bars the constitutive law is derived.
2015
Cyclic behavior; Hardening effects; Reinforcing bars; Relative slip; Stress-slip relationship; Civil and Structural Engineering
01 Pubblicazione su rivista::01a Articolo in rivista
Hardening slip model for reinforcing steel bars / Braga, Franco; Caprili, Silvia; Gigliotti, Rosario; Salvatore, Walter. - In: EARTHQUAKES AND STRUCTURES. - ISSN 2092-7614. - 9:3(2015), pp. 503-539. [10.12989/eas.2015.9.3.503]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/908837
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