Automated finite-element-based validation of structures designed by the strut-and-tie method / Jung-Woong Park in Journal of structural engineering, Vol. 136 N° 2 (Fevrier 2010)  

Public ISBD [article]  inJournal of structural engineering > Vol. 136 N° 2 (Fevrier 2010) . - pp. 203-210 Titre : Automated finite-element-based validation of structures designed by the strut-and-tie method Type de document : texte imprimé Auteurs : Jung-Woong Park, Auteur ; Sukit Yindeesuk, Auteur ; Tjen Tjhin, Auteur Année de publication : 2011 Article en page(s) : pp. 203-210 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Computer-aided design Concrete reinforced Finite-element method Nonlinear analysis Structural models Struts Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : Several codes of practice now support the use of the strut-and-tie method (STM) for the design of complex regions in structural concrete. In this method, a load-resisting truss is idealized and designed to carry the applied forces through these regions to their supports. The method assumes that the load can be carried in the manner envisioned by the designer and that the nominal design strength is at least equal to the calculated capacity of the idealized plastic truss. These assumptions are not always valid, particularly for nonductile and complex structures, as revealed by experiments in which some of STM designed structures have exhibited poor performance at service load levels and/or not been able to support their calculated nominal design strength. Thus, there is clearly a need for a convenient and reliable means of assessing the likely performance of complex regions designed using the STM. This paper presents an integrated STM design and computational framework that was developed to overcome the barriers to efficient design by the STM and effective design validation by nonlinear finite-element analysis. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i2/p203_s1?isAuthorized=no [article] Automated finite-element-based validation of structures designed by the strut-and-tie method [texte imprimé] / Jung-Woong Park, Auteur ; Sukit Yindeesuk, Auteur ; Tjen Tjhin, Auteur . - 2011 . - pp. 203-210. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 136 N° 2 (Fevrier 2010) . - pp. 203-210 Mots-clés : Computer-aided design Concrete reinforced Finite-element method Nonlinear analysis Structural models Struts Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : Several codes of practice now support the use of the strut-and-tie method (STM) for the design of complex regions in structural concrete. In this method, a load-resisting truss is idealized and designed to carry the applied forces through these regions to their supports. The method assumes that the load can be carried in the manner envisioned by the designer and that the nominal design strength is at least equal to the calculated capacity of the idealized plastic truss. These assumptions are not always valid, particularly for nonductile and complex structures, as revealed by experiments in which some of STM designed structures have exhibited poor performance at service load levels and/or not been able to support their calculated nominal design strength. Thus, there is clearly a need for a convenient and reliable means of assessing the likely performance of complex regions designed using the STM. This paper presents an integrated STM design and computational framework that was developed to overcome the barriers to efficient design by the STM and effective design validation by nonlinear finite-element analysis. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i2/p203_s1?isAuthorized=no

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