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Détail de l'auteur
Auteur John Hoemann
Documents disponibles écrits par cet auteur
Affiner la recherchePerformance and characterization of shear ties for use in insulated precast concrete sandwich wall panels / Clay Naito in Journal of structural engineering, Vol. 138 N° 1 (Janvier 2012)
[article]
in Journal of structural engineering > Vol. 138 N° 1 (Janvier 2012) . - pp. 52-61
Titre : Performance and characterization of shear ties for use in insulated precast concrete sandwich wall panels Type de document : texte imprimé Auteurs : Clay Naito, Auteur ; John Hoemann, Auteur ; Mark Beacraft, Auteur Année de publication : 2012 Article en page(s) : pp. 52-61 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Sandwich panel Prestressed concrete Composite Test Constitutive model Résumé : Insulated precast concrete sandwich wall panels are commonly used for exterior cladding on building structures. The insulation is sandwiched between exterior and interior concrete layers to reduce the heating and cooling costs for the structure. The panels can be designed as composite, partially composite, or noncomposite. Shear ties are used to achieve these varying degrees of composite action between the interior and exterior concrete layers. A variety of shear ties are available for domestic construction. An experimental study was conducted to assess the relative strength and response of these commercially available ties. Fourteen different shear tie types were examined, the failure modes and responses were quantified, and simplified engineer level multilinear strength curves were developed for each connection. The test results indicate that shear ties used in sandwich wall construction have considerable variation in strength, stiffness, and deformability. The maximum shear strength of the discrete ties averaged 9.3 kN (2,100 lbf) with a minimum of 3.2 kN (730 lbf) and maximum of 18.4 kN (4,138 lbf). The ties exhibited elastic-brittle, elastic-plastic, and plastic-hardening responses. The results were used to develop trilinear constitutive relationships, which were used to approximate the flexural response of sandwich wall panels. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v138/i1/p52_s1?isAuthorized=no [article] Performance and characterization of shear ties for use in insulated precast concrete sandwich wall panels [texte imprimé] / Clay Naito, Auteur ; John Hoemann, Auteur ; Mark Beacraft, Auteur . - 2012 . - pp. 52-61.
Génie Civil
Langues : Anglais (eng)
in Journal of structural engineering > Vol. 138 N° 1 (Janvier 2012) . - pp. 52-61
Mots-clés : Sandwich panel Prestressed concrete Composite Test Constitutive model Résumé : Insulated precast concrete sandwich wall panels are commonly used for exterior cladding on building structures. The insulation is sandwiched between exterior and interior concrete layers to reduce the heating and cooling costs for the structure. The panels can be designed as composite, partially composite, or noncomposite. Shear ties are used to achieve these varying degrees of composite action between the interior and exterior concrete layers. A variety of shear ties are available for domestic construction. An experimental study was conducted to assess the relative strength and response of these commercially available ties. Fourteen different shear tie types were examined, the failure modes and responses were quantified, and simplified engineer level multilinear strength curves were developed for each connection. The test results indicate that shear ties used in sandwich wall construction have considerable variation in strength, stiffness, and deformability. The maximum shear strength of the discrete ties averaged 9.3 kN (2,100 lbf) with a minimum of 3.2 kN (730 lbf) and maximum of 18.4 kN (4,138 lbf). The ties exhibited elastic-brittle, elastic-plastic, and plastic-hardening responses. The results were used to develop trilinear constitutive relationships, which were used to approximate the flexural response of sandwich wall panels. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v138/i1/p52_s1?isAuthorized=no