Numerical investigation into headed shear connectors under fire / Aaron J. Wang in Journal of structural engineering, Vol. 138 N° 1 (Janvier 2012)  

Public ISBD [article]  inJournal of structural engineering > Vol. 138 N° 1 (Janvier 2012) . - pp. 118-122 Titre : Numerical investigation into headed shear connectors under fire Type de document : texte imprimé Auteurs : Aaron J. Wang, Auteur Année de publication : 2012 Article en page(s) : pp. 118-122 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Shear connector Structural fire engineering Finite-element model Thermal analysis Concrete cracking Résumé : Three-dimensional thermal and mechanical coupled finite-element models are proposed to study the structural behaviors of shear connectors under fire. Thermal, mechanical, and geometrical nonlinearities are incorporated into the models. With the proper incorporation of thermal and mechanical contacts among steel beams, shear connectors, steel deckings, and concrete slabs, both models are verified as accurate after the validation against a series of push-out tests at room temperature or under standard fire. Various thermal and mechanical responses are also extracted and observed in detail from the results of the numerical analyses, which give a better understanding of the structural behavior of headed shear connectors under fire. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v138/i1/p118_s1?isAuthorized=no [article] Numerical investigation into headed shear connectors under fire [texte imprimé] / Aaron J. Wang, Auteur . - 2012 . - pp. 118-122. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 138 N° 1 (Janvier 2012) . - pp. 118-122 Mots-clés : Shear connector Structural fire engineering Finite-element model Thermal analysis Concrete cracking Résumé : Three-dimensional thermal and mechanical coupled finite-element models are proposed to study the structural behaviors of shear connectors under fire. Thermal, mechanical, and geometrical nonlinearities are incorporated into the models. With the proper incorporation of thermal and mechanical contacts among steel beams, shear connectors, steel deckings, and concrete slabs, both models are verified as accurate after the validation against a series of push-out tests at room temperature or under standard fire. Various thermal and mechanical responses are also extracted and observed in detail from the results of the numerical analyses, which give a better understanding of the structural behavior of headed shear connectors under fire. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v138/i1/p118_s1?isAuthorized=no

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