Closed-form procedure for predicting the capacity and demand of steel beam-columns under fire / Spencer E. Quiel in Journal of structural engineering, Vol. 137 N° 9 (Septembre 2011)  

Public ISBD [article]  inJournal of structural engineering > Vol. 137 N° 9 (Septembre 2011) . - pp. 967-976 Titre : Closed-form procedure for predicting the capacity and demand of steel beam-columns under fire Type de document : texte imprimé Auteurs : Spencer E. Quiel, Auteur ; Maria E. Moreyra Garlock, Auteur ; Ignacio Paya-Zaforteza, Auteur Année de publication : 2011 Article en page(s) : pp. 967-976 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Fire Beam-columns Performance-based Steel design Perimeter column Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : During a fire, columns on the perimeter of a building will be subject to moments induced by both a thermal gradient and the restraint of axial expansion by adjacent heated beams, which themselves develop axial load. These members thus act as beam-columns because they are then subject to a combination of axial load plus moment caused by a combination of gravity plus thermal loading. This paper presents a two-pronged procedure to predict the behavior of the perimeter column as a beam-column, considering both the individual member response (including thermal gradients) and the global response (including the interactions of adjacent members). All methods discussed in the paper are closed-form (i.e., they require no iteration) and can therefore be solved by using a spreadsheet or simple mathematical algorithm. The framework is sufficiently simple for use in codified structural-fire design and could be included in a reference of performance-based analysis methods for steel structures. Although this paper specifically addresses the performance of columns on the perimeter of buildings, the proposed framework can be a blueprint for the performance-based analysis of other beam-columns, such as floor beams. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v137/i9/p967_s1?bypassSSO=1 [article] Closed-form procedure for predicting the capacity and demand of steel beam-columns under fire [texte imprimé] / Spencer E. Quiel, Auteur ; Maria E. Moreyra Garlock, Auteur ; Ignacio Paya-Zaforteza, Auteur . - 2011 . - pp. 967-976. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 137 N° 9 (Septembre 2011) . - pp. 967-976 Mots-clés : Fire Beam-columns Performance-based Steel design Perimeter column Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : During a fire, columns on the perimeter of a building will be subject to moments induced by both a thermal gradient and the restraint of axial expansion by adjacent heated beams, which themselves develop axial load. These members thus act as beam-columns because they are then subject to a combination of axial load plus moment caused by a combination of gravity plus thermal loading. This paper presents a two-pronged procedure to predict the behavior of the perimeter column as a beam-column, considering both the individual member response (including thermal gradients) and the global response (including the interactions of adjacent members). All methods discussed in the paper are closed-form (i.e., they require no iteration) and can therefore be solved by using a spreadsheet or simple mathematical algorithm. The framework is sufficiently simple for use in codified structural-fire design and could be included in a reference of performance-based analysis methods for steel structures. Although this paper specifically addresses the performance of columns on the perimeter of buildings, the proposed framework can be a blueprint for the performance-based analysis of other beam-columns, such as floor beams. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v137/i9/p967_s1?bypassSSO=1

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