Documents disponibles écrits par cet auteur

Combined distortional and overall flexural-torsional buckling of cold-formed stainless steel sections: design / Barbara Rossi 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. 361-396 Titre : Combined distortional and overall flexural-torsional buckling of cold-formed stainless steel sections: design Type de document : texte imprimé Auteurs : Barbara Rossi, Auteur ; Jaspart, Jean-Pierre, Auteur ; Kim J. R. Rasmussen, Auteur Année de publication : 2010 Article en page(s) : pp. 361-396 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Stainless  steel  structures  Distortional  buckling  Member  buckling  Interaction  buckling  Design  Direct  strength  method Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper provides a critical summary of the European standards and design methods available for calculating the strength of cold-formed stainless steel compression members. The standards considered (so far mainly applied to columns failing by flexural buckling) are applied to the case of lipped channel section columns failing by combined distortional and overall flexural-torsional buckling. As observed during the tests presented in a companion paper, distortional buckling is found to have a considerable effect on the cross section resistance and is prone to interact with the global flexural-torsional mode. It is investigated how the different formulations account for the two buckling modes and their interaction and how accurate strength predictions they provide. A new direct strength method taking into account these failure modes is then presented and compared to the test results. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i4/p361_s1?isAuthorized=no [article] Combined distortional and overall flexural-torsional buckling of cold-formed stainless steel sections: design [texte imprimé] / Barbara Rossi, Auteur ; Jaspart, Jean-Pierre, Auteur ; Kim J. R. Rasmussen, Auteur . - 2010 . - pp. 361-396. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 136 N° 4 (Avril 2010) . - pp. 361-396 Mots-clés : Stainless  steel  structures  Distortional  buckling  Member  buckling  Interaction  buckling  Design  Direct  strength  method Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper provides a critical summary of the European standards and design methods available for calculating the strength of cold-formed stainless steel compression members. The standards considered (so far mainly applied to columns failing by flexural buckling) are applied to the case of lipped channel section columns failing by combined distortional and overall flexural-torsional buckling. As observed during the tests presented in a companion paper, distortional buckling is found to have a considerable effect on the cross section resistance and is prone to interact with the global flexural-torsional mode. It is investigated how the different formulations account for the two buckling modes and their interaction and how accurate strength predictions they provide. A new direct strength method taking into account these failure modes is then presented and compared to the test results. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i4/p361_s1?isAuthorized=no

Combined distortional and overall flexural-torsional buckling of cold-formed stainless steel sections / Barbara Rossi 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. 354-360 Titre : Combined distortional and overall flexural-torsional buckling of cold-formed stainless steel sections : experimental investigations Type de document : texte imprimé Auteurs : Barbara Rossi, Auteur ; Jaspart, Jean-Pierre, Auteur ; Kim J. R. Rasmussen, Auteur Année de publication : 2010 Article en page(s) : pp. 354-360 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Stainless  steel  structures  Distortional  buckling  Member  buckling  Interaction  buckling  Full-scale  tests Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper presents a series of 48 full-scale tests on press-braked stainless steel lipped channel section columns subjected to concentric compression. The tests were carried out between fixed ends in the Structures Laboratory of the University of Liège and the test specimens were designed such that distortional buckling developed in the section prior to overall flexural-torsional buckling. The stainless steel alloy was 1.4003 chromium weldable steel, popularly known as 3Cr12. Three different geometries were tested using the same experimental setup. A critical summary of the standards and methods for calculating the carrying capacity of cold-formed stainless steel compression members is presented in a companion paper by the same writers. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i4/p354_s1?isAuthorized=no [article] Combined distortional and overall flexural-torsional buckling of cold-formed stainless steel sections : experimental investigations [texte imprimé] / Barbara Rossi, Auteur ; Jaspart, Jean-Pierre, Auteur ; Kim J. R. Rasmussen, Auteur . - 2010 . - pp. 354-360. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 136 N° 4 (Avril 2010) . - pp. 354-360 Mots-clés : Stainless  steel  structures  Distortional  buckling  Member  buckling  Interaction  buckling  Full-scale  tests Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper presents a series of 48 full-scale tests on press-braked stainless steel lipped channel section columns subjected to concentric compression. The tests were carried out between fixed ends in the Structures Laboratory of the University of Liège and the test specimens were designed such that distortional buckling developed in the section prior to overall flexural-torsional buckling. The stainless steel alloy was 1.4003 chromium weldable steel, popularly known as 3Cr12. Three different geometries were tested using the same experimental setup. A critical summary of the standards and methods for calculating the carrying capacity of cold-formed stainless steel compression members is presented in a companion paper by the same writers. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i4/p354_s1?isAuthorized=no

Drive-in steel storage racks / Gilbert, Robert P. in Journal of structural engineering, Vol. 138 N° 2 (Fevrier 2012) 

Public ISBD [article]  in Journal of structural engineering > Vol. 138 N° 2 (Fevrier 2012) . - pp. 135-147 Titre : Drive-in steel storage racks : I: Stiffness tests and 3D load-transfer mechanisms Type de document : texte imprimé Auteurs : Gilbert, Robert P., Auteur ; Kim J. R. Rasmussen, Auteur Année de publication : 2012 Article en page(s) : pp. 135-147 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Steel  storage  racks  Drive-in  racks  3D  behavior  Load  transfer  Full-scale  tests Résumé : Steel storage racks, made of cold-formed steel, are used extensively in industry for storing goods. Two main racking systems prevail, referred to as selective racks and drive-in racks. International racking design codes deal mainly with selective racks, but limited design guidelines are available for drive-in racks. Drive-in racks require minimum floor space by storing pallets one after the other with no space between them. The forklift truck drives into the rack to store the pallets on the first-in, last-out principle. To allow forklift passage, drive-in racks can be braced only at the back (spine bracing) and at the top (plan bracing) in the down-aisle direction, resulting in a complex slender structure with poorly understood three-dimensional (3D) behavior and increased risk of collapse. Tests on drive-in rack systems to accurately capture their 3D behavior have not previously been available in the literature. This paper presents experimental results from full-scale tests conducted on a complete drive-in rack system. Experimental investigations of the load transfer and relative stiffness under various horizontal loading conditions are presented. Experiments have been performed on loaded and unloaded racks. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v138/i2/p135_s1?isAuthorized=no [article] Drive-in steel storage racks : I: Stiffness tests and 3D load-transfer mechanisms [texte imprimé] / Gilbert, Robert P., Auteur ; Kim J. R. Rasmussen, Auteur . - 2012 . - pp. 135-147. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 138 N° 2 (Fevrier 2012) . - pp. 135-147 Mots-clés : Steel  storage  racks  Drive-in  racks  3D  behavior  Load  transfer  Full-scale  tests Résumé : Steel storage racks, made of cold-formed steel, are used extensively in industry for storing goods. Two main racking systems prevail, referred to as selective racks and drive-in racks. International racking design codes deal mainly with selective racks, but limited design guidelines are available for drive-in racks. Drive-in racks require minimum floor space by storing pallets one after the other with no space between them. The forklift truck drives into the rack to store the pallets on the first-in, last-out principle. To allow forklift passage, drive-in racks can be braced only at the back (spine bracing) and at the top (plan bracing) in the down-aisle direction, resulting in a complex slender structure with poorly understood three-dimensional (3D) behavior and increased risk of collapse. Tests on drive-in rack systems to accurately capture their 3D behavior have not previously been available in the literature. This paper presents experimental results from full-scale tests conducted on a complete drive-in rack system. Experimental investigations of the load transfer and relative stiffness under various horizontal loading conditions are presented. Experiments have been performed on loaded and unloaded racks. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v138/i2/p135_s1?isAuthorized=no

Drive-in steel storage racks / Zhang, Hao in Journal of structural engineering, Vol. 138 N° 2 (Fevrier 2012) 

Public ISBD [article]  in Journal of structural engineering > Vol. 138 N° 2 (Fevrier 2012) . - pp. 148-156 Titre : Drive-in steel storage racks : II: Reliability-based design for forklift truck impact Type de document : texte imprimé Auteurs : Zhang, Hao, Auteur ; Benoit P. Gilbert, Auteur ; Kim J. R. Rasmussen, Auteur Année de publication : 2012 Article en page(s) : pp. 148-156 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Drive-in  racks  Impact  forces  Probability-based  design  Steel  Steel  storage  racks  Structural  reliability Résumé : Steel drive-in racks are susceptible to structural failure from accidental impact by operating forklift trucks. Under impact, the upright bends and the supported pallets may drop through the rack to cause structural collapse if the bay opening exceeds the pallet bearing width. This drop-through limit state has not been considered in existing rack design standards. This paper proposes a simple equation to calculate the equivalent static impact force based on recent tests and nonlinear dynamic analysis of drive-in steel racks. An impact load factor is developed on the basis of a structural reliability assessment, taking into account the uncertain nature of the impact force, structural resistance, and models used in structural analysis. In design practice, the bay opening is determined from factored impact loads and is not to exceed specified limits. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v138/i2/p148_s1?isAuthorized=no [article] Drive-in steel storage racks : II: Reliability-based design for forklift truck impact [texte imprimé] / Zhang, Hao, Auteur ; Benoit P. Gilbert, Auteur ; Kim J. R. Rasmussen, Auteur . - 2012 . - pp. 148-156. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 138 N° 2 (Fevrier 2012) . - pp. 148-156 Mots-clés : Drive-in  racks  Impact  forces  Probability-based  design  Steel  Steel  storage  racks  Structural  reliability Résumé : Steel drive-in racks are susceptible to structural failure from accidental impact by operating forklift trucks. Under impact, the upright bends and the supported pallets may drop through the rack to cause structural collapse if the bay opening exceeds the pallet bearing width. This drop-through limit state has not been considered in existing rack design standards. This paper proposes a simple equation to calculate the equivalent static impact force based on recent tests and nonlinear dynamic analysis of drive-in steel racks. An impact load factor is developed on the basis of a structural reliability assessment, taking into account the uncertain nature of the impact force, structural resistance, and models used in structural analysis. In design practice, the bay opening is determined from factored impact loads and is not to exceed specified limits. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v138/i2/p148_s1?isAuthorized=no