Documents disponibles écrits par cet auteur

Cyclic behavior of shear links of various grades of plate steel / Peter Dusicka in Journal of structural engineering, Vol. 136 N° 4 (Avril 2010) 

Public ISBD [article]  in Journal of structural engineering > Vol. 136 N° 4 (Avril 2010) . - pp. 370-378 Titre : Cyclic behavior of shear links of various grades of plate steel Type de document : texte imprimé Auteurs : Peter Dusicka, Auteur ; Ahmad M. Itani, Auteur ; Ian G. Buckle, Auteur Année de publication : 2010 Article en page(s) : pp. 370-378 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Shear  link  Cyclic  experiment  High-performance  steel  Low  yield  point  steel Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : Plate steel shear links offer enhanced design freedom, including the ability to use steel grades that are not available in rolled shapes. This paper discusses the cyclic response of five types of shear links designed using steel grades that ranged from 485 to 100 MPa yield strength. The design and subsequent performance was categorized into two groups; conventional design and those designed without stiffeners using low yield point steels. Ductile failure modes and desirable hysteretic behavior that resulted in efficient cyclic energy dissipation were observed for all specimens. The links designed without stiffeners using low yield point steel reached shear deformations exceeding 0.20 rad, outperforming the conventional designs that exhibited approximately 0.12 rad capacity. The enhanced performance was the result of shifting the failure mode by excluding intermediate stiffeners and providing low web compactness. This combination eliminated welding and decreased measured plastic strain demands on the face of the inelastically deforming webs. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i4/p370_s1?isAuthorized=no [article] Cyclic behavior of shear links of various grades of plate steel [texte imprimé] / Peter Dusicka, Auteur ; Ahmad M. Itani, Auteur ; Ian G. Buckle, Auteur . - 2010 . - pp. 370-378. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 136 N° 4 (Avril 2010) . - pp. 370-378 Mots-clés : Shear  link  Cyclic  experiment  High-performance  steel  Low  yield  point  steel Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : Plate steel shear links offer enhanced design freedom, including the ability to use steel grades that are not available in rolled shapes. This paper discusses the cyclic response of five types of shear links designed using steel grades that ranged from 485 to 100 MPa yield strength. The design and subsequent performance was categorized into two groups; conventional design and those designed without stiffeners using low yield point steels. Ductile failure modes and desirable hysteretic behavior that resulted in efficient cyclic energy dissipation were observed for all specimens. The links designed without stiffeners using low yield point steel reached shear deformations exceeding 0.20 rad, outperforming the conventional designs that exhibited approximately 0.12 rad capacity. The enhanced performance was the result of shifting the failure mode by excluding intermediate stiffeners and providing low web compactness. This combination eliminated welding and decreased measured plastic strain demands on the face of the inelastically deforming webs. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i4/p370_s1?isAuthorized=no

In-plane lateral cyclic behavior of insulated concrete form grid walls / Peter Dusicka in Journal of structural engineering, Vol. 137 N° 10 (Octobre 2011) 

Public ISBD [article]  in Journal of structural engineering > Vol. 137 N° 10 (Octobre 2011) . - pp. 1075-1084 Titre : In-plane lateral cyclic behavior of insulated concrete form grid walls Type de document : texte imprimé Auteurs : Peter Dusicka, Auteur ; Thomas Kay, Auteur Année de publication : 2012 Article en page(s) : pp. 1075-1084 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Insulated  concrete  form  Wall  Cyclic  behavior  Large-scale  experiments  Green  buildings Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : The in-plane lateral behavior of insulated concrete form grid walls consisting of prefabricated stay-in-place form blocks made of recycled expanded polystyrene and evenly spaced horizontal and vertical reinforced concrete cores was experimentally investigated. Incrementally increasing reversed cyclic drifts were imposed on sets of full-scale walls of two different aspect ratios and on two different vertical loading conditions. The results of the 13 experiments indicated that a consistent wall failure mode stemmed from fracture of the individual vertical cores. Additional vertical load was found to increase the strength and effective stiffness of the walls, but the effect on drift capacity and ductility depended on the wall aspect ratio. The residual stiffness and energy dissipation severely degraded within cycles of 1% drift for all aspect geometries and loading conditions. The stay-in-place form blocks had a significant positive influence on the behavior despite the material’s relatively low strength. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v137/i10/p1075_s1?isAuthorized=no [article] In-plane lateral cyclic behavior of insulated concrete form grid walls [texte imprimé] / Peter Dusicka, Auteur ; Thomas Kay, Auteur . - 2012 . - pp. 1075-1084. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 137 N° 10 (Octobre 2011) . - pp. 1075-1084 Mots-clés : Insulated  concrete  form  Wall  Cyclic  behavior  Large-scale  experiments  Green  buildings Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : The in-plane lateral behavior of insulated concrete form grid walls consisting of prefabricated stay-in-place form blocks made of recycled expanded polystyrene and evenly spaced horizontal and vertical reinforced concrete cores was experimentally investigated. Incrementally increasing reversed cyclic drifts were imposed on sets of full-scale walls of two different aspect ratios and on two different vertical loading conditions. The results of the 13 experiments indicated that a consistent wall failure mode stemmed from fracture of the individual vertical cores. Additional vertical load was found to increase the strength and effective stiffness of the walls, but the effect on drift capacity and ductility depended on the wall aspect ratio. The residual stiffness and energy dissipation severely degraded within cycles of 1% drift for all aspect geometries and loading conditions. The stay-in-place form blocks had a significant positive influence on the behavior despite the material’s relatively low strength. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v137/i10/p1075_s1?isAuthorized=no