Behavior of self-centering steel plate shear walls and design considerations / Daniel M. Dowden 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. 11-21 Titre : Behavior of self-centering steel plate shear walls and design considerations Type de document : texte imprimé Auteurs : Daniel M. Dowden, Auteur ; Ronny Purba, Auteur ; Michel Bruneau, Auteur Année de publication : 2012 Article en page(s) : pp. 11-21 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Self-centering Rocking connection Steel plate Shear wall Earthquake engineering Résumé : This paper presents insights on the combined contribution of posttensioning and beam-to-column joint rocking connection in self-centering steel plate shear walls (SC-SPSWs). Moment, shear, and axial force diagrams along the boundary beam are developed based on capacity design principles and are compared with nonlinear cyclic push-over analysis results. These closed-form solutions are integrated into a design procedure to select cross-sectional areas of the posttension reinforcement and beam sizes: (1) to prevent in-span plastic hinges; (2) to ensure that posttension reinforcement remains elastic to maintain self-centering capability of the system; (3) to impose sufficient initial posttensioning to overcome wind and gravity loads; (4) to provide adequate beam plastic strength considering reduced moment capacity due to the presence of axial and shear forces; and (5) to consider posttension losses due to axial beam shortening. Using this fundamental behavior knowledge, and adding response-based performance objectives to the design procedure, a companion paper investigates the seismic response of SC-SPSW using time-history nonlinear analyses. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v138/i1/p11_s1?isAuthorized=no [article] Behavior of self-centering steel plate shear walls and design considerations [texte imprimé] / Daniel M. Dowden, Auteur ; Ronny Purba, Auteur ; Michel Bruneau, Auteur . - 2012 . - pp. 11-21. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 138 N° 1 (Janvier 2012) . - pp. 11-21 Mots-clés : Self-centering Rocking connection Steel plate Shear wall Earthquake engineering Résumé : This paper presents insights on the combined contribution of posttensioning and beam-to-column joint rocking connection in self-centering steel plate shear walls (SC-SPSWs). Moment, shear, and axial force diagrams along the boundary beam are developed based on capacity design principles and are compared with nonlinear cyclic push-over analysis results. These closed-form solutions are integrated into a design procedure to select cross-sectional areas of the posttension reinforcement and beam sizes: (1) to prevent in-span plastic hinges; (2) to ensure that posttension reinforcement remains elastic to maintain self-centering capability of the system; (3) to impose sufficient initial posttensioning to overcome wind and gravity loads; (4) to provide adequate beam plastic strength considering reduced moment capacity due to the presence of axial and shear forces; and (5) to consider posttension losses due to axial beam shortening. Using this fundamental behavior knowledge, and adding response-based performance objectives to the design procedure, a companion paper investigates the seismic response of SC-SPSW using time-history nonlinear analyses. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v138/i1/p11_s1?isAuthorized=no

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