Cyclic testing and modeling of cold-formed steel special bolted moment frame connections / Chia-Ming Uang in Journal of structural engineering, Vol. 136 N° 8 (Août 2010)  

Public ISBD [article]  inJournal of structural engineering > Vol. 136 N° 8 (Août 2010) . - pp. 953-960 Titre : Cyclic testing and modeling of cold-formed steel special bolted moment frame connections Type de document : texte imprimé Auteurs : Chia-Ming Uang, Auteur ; Atsushi Sato, Auteur ; Jong-Kook Hong, Auteur Année de publication : 2011 Article en page(s) : pp. 953-960 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Cyclic tests Steel frames Cold-formed steel Slip Bearings Bolted connections Buckling Mathematical models Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : A cyclic testing of nine full-scale beam-to-column moment connection subassemblies was carried out to support the development of design provisions for a lateral load-resisting system in the AISI S110: Standard for Seismic Design of Cold-Formed Steel Structural Systems—Special Bolted Moment Frames. This type of one-story framing system features C-section beams connected to hollow structural section columns by bearing-type high-strength bolts and is commonly used in industrial platform construction. The test results showed that these specimens had an interstory drift capacity significantly larger than 0.04 rad. The cyclic behavior was characterized by a linear response, a slip range, and a significant hardening response due to bearing at bolt holes. The conventional strong column-weak beam design philosophy is not appropriate for this system. The inelastic action through the bolt slip and bearing in the connection is a ductile yielding mechanism. Beams and columns should be protected to remain elastic by the capacity design principles. Based on the concept of the instantaneous center of rotation of an eccentrically loaded bolt group, a model that can properly simulate the cyclic behavior of the bolted moment connection is presented. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i8/p953_s1?isAuthorized=no [article] Cyclic testing and modeling of cold-formed steel special bolted moment frame connections [texte imprimé] / Chia-Ming Uang, Auteur ; Atsushi Sato, Auteur ; Jong-Kook Hong, Auteur . - 2011 . - pp. 953-960. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 136 N° 8 (Août 2010) . - pp. 953-960 Mots-clés : Cyclic tests Steel frames Cold-formed steel Slip Bearings Bolted connections Buckling Mathematical models Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : A cyclic testing of nine full-scale beam-to-column moment connection subassemblies was carried out to support the development of design provisions for a lateral load-resisting system in the AISI S110: Standard for Seismic Design of Cold-Formed Steel Structural Systems—Special Bolted Moment Frames. This type of one-story framing system features C-section beams connected to hollow structural section columns by bearing-type high-strength bolts and is commonly used in industrial platform construction. The test results showed that these specimens had an interstory drift capacity significantly larger than 0.04 rad. The cyclic behavior was characterized by a linear response, a slip range, and a significant hardening response due to bearing at bolt holes. The conventional strong column-weak beam design philosophy is not appropriate for this system. The inelastic action through the bolt slip and bearing in the connection is a ductile yielding mechanism. Beams and columns should be protected to remain elastic by the capacity design principles. Based on the concept of the instantaneous center of rotation of an eccentrically loaded bolt group, a model that can properly simulate the cyclic behavior of the bolted moment connection is presented. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i8/p953_s1?isAuthorized=no

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