Documents disponibles écrits par cet auteur

Midply truss wall system / Jung-Pyo Hong in Journal of structural engineering, Vol. 138 N° 9 (Septembre 2012) 

Public ISBD [article]  in Journal of structural engineering > Vol. 138 N° 9 (Septembre 2012) . - pp.1120–1127. Titre : Midply truss wall system : High-performance shear wall for midrise wood-frame buildings Type de document : texte imprimé Auteurs : Jung-Pyo Hong, Auteur ; Chun Ni, Auteur ; Matt Vinson, Auteur Année de publication : 2012 Article en page(s) : pp.1120–1127. Note générale : Génie civil Langues : Anglais (eng) Mots-clés : Shear  walls  Wood  structures  Experimental  studies  Cyclic  tests  Wood  trusses  Conceptual  design  Connections Résumé : A high-performance wood-frame shear wall system, named the MIDPLY truss wall (MTW), was developed for application to midrise wood-frame buildings. The basic MTW system consists of metal-plate–connected wood trusses, sheathing panels, and steel tie-downs. The sheathing panels of the MTW system are placed between the wood trusses and connected with mechanical fasteners. The main concept of the MTW system is to increase the lateral load resistance of a shear wall by reconfiguring the wall frame members into lateral load–resisting wood trusses. In this study, the feasibility of the MTW system was investigated. Eight 2,440×2,440 mm MTW walls were constructed and tested under monotonic and cyclic loading in accordance with ASTM test standards. Shear stiffness, strength properties, and ductility of the MTW walls were evaluated and compared with those of comparable MIDPLY walls. Overall, the MTW system shows significant improvements in shear stiffness, yield load, peak load, and ductility. This paper contains a discussion of the failure modes, the effect of the vertical load, the importance of truss design, and the further studies needed. ISSN : 0733-9445 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29ST.1943-541X.0000536 [article] Midply truss wall system : High-performance shear wall for midrise wood-frame buildings [texte imprimé] / Jung-Pyo Hong, Auteur ; Chun Ni, Auteur ; Matt Vinson, Auteur . - 2012 . - pp.1120–1127. Génie civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 138 N° 9 (Septembre 2012) . - pp.1120–1127. Mots-clés : Shear  walls  Wood  structures  Experimental  studies  Cyclic  tests  Wood  trusses  Conceptual  design  Connections Résumé : A high-performance wood-frame shear wall system, named the MIDPLY truss wall (MTW), was developed for application to midrise wood-frame buildings. The basic MTW system consists of metal-plate–connected wood trusses, sheathing panels, and steel tie-downs. The sheathing panels of the MTW system are placed between the wood trusses and connected with mechanical fasteners. The main concept of the MTW system is to increase the lateral load resistance of a shear wall by reconfiguring the wall frame members into lateral load–resisting wood trusses. In this study, the feasibility of the MTW system was investigated. Eight 2,440×2,440 mm MTW walls were constructed and tested under monotonic and cyclic loading in accordance with ASTM test standards. Shear stiffness, strength properties, and ductility of the MTW walls were evaluated and compared with those of comparable MIDPLY walls. Overall, the MTW system shows significant improvements in shear stiffness, yield load, peak load, and ductility. This paper contains a discussion of the failure modes, the effect of the vertical load, the importance of truss design, and the further studies needed. ISSN : 0733-9445 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29ST.1943-541X.0000536

Three-dimensional finite-element modeling of nailed connections in wood / Jung-Pyo Hong in Journal of structural engineering, Vol. 136 N° 6 (Juin 2010) 

Public ISBD [article]  in Journal of structural engineering > Vol. 136 N° 6 (Juin 2010) . - pp. 715-722 Titre : Three-dimensional finite-element modeling of nailed connections in wood Type de document : texte imprimé Auteurs : Jung-Pyo Hong, Auteur ; David Barrett, Auteur Année de publication : 2011 Article en page(s) : pp. 715-722 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Three-dimensional  models  Wood  structures  Finite-element  method  Connections  Mechanical  properties Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : A three-dimensional nonlinear finite-element model of single nail connection was developed based on transversely isotropic plasticity. In order to have the connection model account for crushing behavior of wood during the nail embedment, a procedure was studied to implement the theory of a beam on a nonlinear foundation in the solid element modeling. Within a prescribed volume of wood surrounding a nail, a wood foundation was defined with the foundation material parameters, which were determined through nail-embedment tests. Introduction of the wood foundation to the connection model was justified by comparing the results of nail-embedment simulations with or without a wood foundation. Three-dimensional finite-element analyses of single nail connections incorporated with wood foundations were compared with the results of lateral resistance tests of the connections under parallel to grain loading and perpendicular to grain loading. The model predictions showed good agreement with the load-slip relations and the actual deformed shapes of the connections. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i6/p715_s1?isAuthorized=no [article] Three-dimensional finite-element modeling of nailed connections in wood [texte imprimé] / Jung-Pyo Hong, Auteur ; David Barrett, Auteur . - 2011 . - pp. 715-722. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 136 N° 6 (Juin 2010) . - pp. 715-722 Mots-clés : Three-dimensional  models  Wood  structures  Finite-element  method  Connections  Mechanical  properties Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : A three-dimensional nonlinear finite-element model of single nail connection was developed based on transversely isotropic plasticity. In order to have the connection model account for crushing behavior of wood during the nail embedment, a procedure was studied to implement the theory of a beam on a nonlinear foundation in the solid element modeling. Within a prescribed volume of wood surrounding a nail, a wood foundation was defined with the foundation material parameters, which were determined through nail-embedment tests. Introduction of the wood foundation to the connection model was justified by comparing the results of nail-embedment simulations with or without a wood foundation. Three-dimensional finite-element analyses of single nail connections incorporated with wood foundations were compared with the results of lateral resistance tests of the connections under parallel to grain loading and perpendicular to grain loading. The model predictions showed good agreement with the load-slip relations and the actual deformed shapes of the connections. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i6/p715_s1?isAuthorized=no