Limit load carrying capacity of two-way slabs with two edges clamped and two edges simply supported in fire / Yu-li Dong in Journal of structural engineering, Vol. 137 N° 10 (Octobre 2011)  

Public ISBD [article]  inJournal of structural engineering > Vol. 137 N° 10 (Octobre 2011) . - pp. 1182-1192 Titre : Limit load carrying capacity of two-way slabs with two edges clamped and two edges simply supported in fire Type de document : texte imprimé Auteurs : Yu-li Dong, Auteur ; Chong-ji Zhu, Auteur Année de publication : 2012 Article en page(s) : pp. 1182-1192 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Two-way slabs Simply supported edges Clamped Tensile membrane action Fire Yield line theory Segment equilibrium Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper presents test results of temperature distribution, central vertical deflection, and edge horizontal deflection of a two-way concrete slab with two edges clamped and two edges simply supported in fire. On the basis of experimental results, a segment equilibrium method was presented to calculate the limit load-carrying capacity of concrete slabs in fire conditions. The model considered the tensile membrane action contributing to the vertical component of reinforcement tensile forces after the formation of mechanism of the plastic hinge line. The model could clearly predict the effect of the restraint end moment on the plastic hinge line pattern. Comparison between the developed model and test results showed good correlation. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v137/i10/p1182_s1?isAuthorized=no [article] Limit load carrying capacity of two-way slabs with two edges clamped and two edges simply supported in fire [texte imprimé] / Yu-li Dong, Auteur ; Chong-ji Zhu, Auteur . - 2012 . - pp. 1182-1192. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 137 N° 10 (Octobre 2011) . - pp. 1182-1192 Mots-clés : Two-way slabs Simply supported edges Clamped Tensile membrane action Fire Yield line theory Segment equilibrium Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper presents test results of temperature distribution, central vertical deflection, and edge horizontal deflection of a two-way concrete slab with two edges clamped and two edges simply supported in fire. On the basis of experimental results, a segment equilibrium method was presented to calculate the limit load-carrying capacity of concrete slabs in fire conditions. The model considered the tensile membrane action contributing to the vertical component of reinforcement tensile forces after the formation of mechanism of the plastic hinge line. The model could clearly predict the effect of the restraint end moment on the plastic hinge line pattern. Comparison between the developed model and test results showed good correlation. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v137/i10/p1182_s1?isAuthorized=no

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