Experimental behavior and mechanical modeling of dissipative T-stub connections / M. Latour in Journal of structural engineering, Vol. 138 N° 2 (Fevrier 2012)  

Public ISBD [article]  inJournal of structural engineering > Vol. 138 N° 2 (Fevrier 2012) . - pp. 170-182 Titre : Experimental behavior and mechanical modeling of dissipative T-stub connections Type de document : texte imprimé Auteurs : M. Latour, Auteur ; G. Rizzano, Auteur Année de publication : 2012 Article en page(s) : pp. 170-182 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Damper Connections T-stubs Cyclic ADAS Dissipation Fatigue Modeling Experimental Résumé : This work aims to enhance the energy-dissipation capacity of classical rectangular T-stubs by proposing an hourglass shape for the T-stub flange according to the approach usually adopted for added damping and stiffness (ADAS) devices. A new type of axial damper is developed. First, a mechanical model of the device is set up and a finite-element model is carried out in ABAQUS code. The accuracy of both models is verified through comparison with experimental results. Next, on the basis of cyclic tests, the improvement of the energy-dissipation capacity of classical T-stubs provided by the proposed approach is quantified, and the low-cycle fatigue curves are determined with reference to the case of both T-stubs on rigid support and of coupled T-stubs. The results of the work also represent a useful tool for designing a dissipative double split tee connection. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v138/i2/p170_s1?isAuthorized=no [article] Experimental behavior and mechanical modeling of dissipative T-stub connections [texte imprimé] / M. Latour, Auteur ; G. Rizzano, Auteur . - 2012 . - pp. 170-182. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 138 N° 2 (Fevrier 2012) . - pp. 170-182 Mots-clés : Damper Connections T-stubs Cyclic ADAS Dissipation Fatigue Modeling Experimental Résumé : This work aims to enhance the energy-dissipation capacity of classical rectangular T-stubs by proposing an hourglass shape for the T-stub flange according to the approach usually adopted for added damping and stiffness (ADAS) devices. A new type of axial damper is developed. First, a mechanical model of the device is set up and a finite-element model is carried out in ABAQUS code. The accuracy of both models is verified through comparison with experimental results. Next, on the basis of cyclic tests, the improvement of the energy-dissipation capacity of classical T-stubs provided by the proposed approach is quantified, and the low-cycle fatigue curves are determined with reference to the case of both T-stubs on rigid support and of coupled T-stubs. The results of the work also represent a useful tool for designing a dissipative double split tee connection. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v138/i2/p170_s1?isAuthorized=no

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