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Postearthquake Ffre performance of sprayed fire-resistive material on steel moment frames / Nicole Leo Braxtan in Journal of structural engineering, Vol. 137 N° 9 (Septembre 2011) 

Public ISBD [article]  in Journal of structural engineering > Vol. 137 N° 9 (Septembre 2011) . - pp. 946-953 Titre : Postearthquake Ffre performance of sprayed fire-resistive material on steel moment frames Type de document : texte imprimé Auteurs : Nicole Leo Braxtan, Auteur ; Stephen P. Pessiki, Auteur Année de publication : 2011 Article en page(s) : pp. 946-953 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Fire  Earthquakes  Damage  Steel  frames  Sprayed  fire  resistive  material Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper describes damage patterns in sprayed fire resistive material (SFRM) on steel moment frame beam-column assemblages owing to a strong seismic event, and the thermal consequences of this damage when exposed to postearthquake fire. Large-scale experimental tests were performed to examine the bond of SFRM to steel in the three-dimensional configuration of a moment frame beam-column connection region. Two beam-column assemblages treated with SFRM were subject to quasi-static cyclic loading, resulting in large deformations and plastic hinges in the beam and local damage to the SFRM on the beam. Heat transfer finite-element analyses were performed to compare beam-column connections with damaged SFRM and fully insulated connections (with no damage) under the action of both standard and natural fires. Results of the heat transfer analyses show that SFRM damage on the beams adjacent to the column causes an increase in heat transferred into the column and elevated temperatures in the column. The elevated temperatures in the column cause important reductions in strength and stiffness of the steel. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v137/i9/p946_s1?bypassSSO=1 [article] Postearthquake Ffre performance of sprayed fire-resistive material on steel moment frames [texte imprimé] / Nicole Leo Braxtan, Auteur ; Stephen P. Pessiki, Auteur . - 2011 . - pp. 946-953. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 137 N° 9 (Septembre 2011) . - pp. 946-953 Mots-clés : Fire  Earthquakes  Damage  Steel  frames  Sprayed  fire  resistive  material Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper describes damage patterns in sprayed fire resistive material (SFRM) on steel moment frame beam-column assemblages owing to a strong seismic event, and the thermal consequences of this damage when exposed to postearthquake fire. Large-scale experimental tests were performed to examine the bond of SFRM to steel in the three-dimensional configuration of a moment frame beam-column connection region. Two beam-column assemblages treated with SFRM were subject to quasi-static cyclic loading, resulting in large deformations and plastic hinges in the beam and local damage to the SFRM on the beam. Heat transfer finite-element analyses were performed to compare beam-column connections with damaged SFRM and fully insulated connections (with no damage) under the action of both standard and natural fires. Results of the heat transfer analyses show that SFRM damage on the beams adjacent to the column causes an increase in heat transferred into the column and elevated temperatures in the column. The elevated temperatures in the column cause important reductions in strength and stiffness of the steel. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v137/i9/p946_s1?bypassSSO=1