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Performance-based approach for the design of a deflection hardened hybrid fiber-reinforced concrete / Blunt, J. in Journal of engineering mechanics, Vol. 135 N° 9 (Septembre 2009) 

Public ISBD [article]  in Journal of engineering mechanics > Vol. 135 N° 9 (Septembre 2009) . - pp. 978-986 Titre : Performance-based approach for the design of a deflection hardened hybrid fiber-reinforced concrete Type de document : texte imprimé Auteurs : Blunt, J., Auteur ; Ostertag, C. P., Auteur Article en page(s) : pp. 978-986 Note générale : Mécanique appliquée Langues : Anglais (eng) Mots-clés : Performance  characteristics  Nonlinear  analysis  Cracking  Deflection  Stiffness  Reinforced  concrete  Fiber  reinforced  materials. Résumé : A numerical model that uses a nonlinear cracked hinge was developed to characterize the flexural behavior of a beam element composed of hybrid fiber-reinforced concrete (HyFRC). Deflection hardening performance criteria were established based on an average tensile strain capacity of 0.002 and a deterministic sensitivity analysis of the model. A HyFRC mix design is proposed that exceeds these performance criteria. The HyFRC flexural behavior and its flexural stiffness are compared against conventional reinforced concrete. Implications of the material flexural performance on performance-based structural design methods are discussed. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.aip.org/vsearch/servlet/VerityServlet?KEY=JENMDT&smode=strres [...] [article] Performance-based approach for the design of a deflection hardened hybrid fiber-reinforced concrete [texte imprimé] / Blunt, J., Auteur ; Ostertag, C. P., Auteur . - pp. 978-986. Mécanique appliquée Langues : Anglais (eng) in Journal of engineering mechanics > Vol. 135 N° 9 (Septembre 2009) . - pp. 978-986 Mots-clés : Performance  characteristics  Nonlinear  analysis  Cracking  Deflection  Stiffness  Reinforced  concrete  Fiber  reinforced  materials. Résumé : A numerical model that uses a nonlinear cracked hinge was developed to characterize the flexural behavior of a beam element composed of hybrid fiber-reinforced concrete (HyFRC). Deflection hardening performance criteria were established based on an average tensile strain capacity of 0.002 and a deterministic sensitivity analysis of the model. A HyFRC mix design is proposed that exceeds these performance criteria. The HyFRC flexural behavior and its flexural stiffness are compared against conventional reinforced concrete. Implications of the material flexural performance on performance-based structural design methods are discussed. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.aip.org/vsearch/servlet/VerityServlet?KEY=JENMDT&smode=strres [...]