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Finite-element modeling to calculate the overall stiffness of cracked reinforced concrete beams / Arnaud Castel in Journal of structural engineering, Vol. 138 N° 7 (Juillet 2012) 

Public ISBD [article]  in Journal of structural engineering > Vol. 138 N° 7 (Juillet 2012) . - pp. 889–898 Titre : Finite-element modeling to calculate the overall stiffness of cracked reinforced concrete beams Type de document : texte imprimé Auteurs : Arnaud Castel, Auteur ; Thierry Vidal, Auteur ; Raoul François, Auteur Année de publication : 2012 Article en page(s) : pp. 889–898 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Reinforced  Concrete  Tension  stiffening  Bond  Serviceability  FE  model Résumé : The macro-finite-element (MFE) modeling proposed in this paper is dedicated to the calculation of the deflection of already cracked reinforced concrete beams under service loading at the stabilized cracking stage. MFEs are beam finite elements, characterized by their average moment of inertia, calculated using nonlinear assumed distributions of steel strain, concrete strain, and neutral axis between two consecutive bending cracks. The results of the MFE model are successfully compared with experiments performed on five RC beams, including square- and T-section beams and two concretes (grades 30 and 40 MPa). A successful application of the MFE method to a statically indeterminate beam is also presented. The MFE modeling is appealing for use in practice because of its computational simplicity. ISSN : 0733-9445 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29ST.1943-541X.0000520 [article] Finite-element modeling to calculate the overall stiffness of cracked reinforced concrete beams [texte imprimé] / Arnaud Castel, Auteur ; Thierry Vidal, Auteur ; Raoul François, Auteur . - 2012 . - pp. 889–898. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 138 N° 7 (Juillet 2012) . - pp. 889–898 Mots-clés : Reinforced  Concrete  Tension  stiffening  Bond  Serviceability  FE  model Résumé : The macro-finite-element (MFE) modeling proposed in this paper is dedicated to the calculation of the deflection of already cracked reinforced concrete beams under service loading at the stabilized cracking stage. MFEs are beam finite elements, characterized by their average moment of inertia, calculated using nonlinear assumed distributions of steel strain, concrete strain, and neutral axis between two consecutive bending cracks. The results of the MFE model are successfully compared with experiments performed on five RC beams, including square- and T-section beams and two concretes (grades 30 and 40 MPa). A successful application of the MFE method to a statically indeterminate beam is also presented. The MFE modeling is appealing for use in practice because of its computational simplicity. ISSN : 0733-9445 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29ST.1943-541X.0000520