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Global structural behaviour of a building frame further to its partial destruction by column loss
Luu, Nguyen Nam Hai; Demonceau, Jean-François; Jaspart, Jean-Pierre
2008In Ofner, Robert; Beg, Darko; Fink, Josef et al. (Eds.) EUROSTEEL 2008, 5th European Conference on Steel and Composite Structures
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Keywords :
Robustness; Alternative load path; Column loss
Abstract :
[en] In 1969, a catastrophic event occurred in UK at the Ronal Point residential building where the progressive collapse of the building, initiated by a localized gas explosion, was observed. Further to this event, some codes and standards, and in particular the British Standards, impose to the designer to ensure the structural integrity of building in order to avoid the progressive collapse of the latter further to an exceptional action. In fact, the progressive collapse of a building is the result of a change in the structural system and of the load path associated to the loss of one or more main structural members. In other words, the existing load path is suddenly modified and the loads supported by the building are reported to the foundation through an alternative load path. Accordingly, the remaining structural members are overloaded by additional loads; the latter have to be able to support these loads and to possess a sufficient ductility. In the last decade, researches on this topic were initiated at the Argenco Department of Liège University. The present paper reflects part of these activities; in particular, some investigations dedicated to the investigation of the behaviour of a frame further to a column loss are presented. In another article presented by J.F Demonceau, H.N.N. Luu and J.P Jaspart within the present conference is devoted to the investigation of the behaviour of the frame when significant membranar forces developed within the structure. In particular, in this paper, a simplified substructure which is able to simulate the behaviour of a structure further to a column loss is defined. The present paper presents the analytical methods requested to define the parameters influencing the response of the simplified substructure.
Disciplines :
Civil engineering
Author, co-author :
Luu, Nguyen Nam Hai
Demonceau, Jean-François  ;  Université de Liège - ULiège > Département ArGEnCo > Département ArGEnCo
Jaspart, Jean-Pierre  ;  Université de Liège - ULiège > Département Argenco : Secteur MS2F > Adéquat. struct. aux exig. de fonct.& perfor. techn.-écon.
Language :
English
Title :
Global structural behaviour of a building frame further to its partial destruction by column loss
Alternative titles :
[fr] Comportement structural global de portiques de bâtiments suite à la perte d'une colonne
Publication date :
September 2008
Event name :
EUROSTEEL 2008
Event organizer :
Univesity of Graz, University of Ljubljana, University of Vienna
Event place :
Graz, Austria
Event date :
3-5 Septembre 2008
Audience :
International
Main work title :
EUROSTEEL 2008, 5th European Conference on Steel and Composite Structures
Author, co-author :
Ofner, Robert
Beg, Darko
Fink, Josef
Greiner, Richard
Unterweger, Harald
Publisher :
ECCS European Convention for Constructional Steelwork, Burxelles, Belgium
ISBN/EAN :
92-0147-000-90
Pages :
1749-1754
Peer reviewed :
Peer reviewed
Available on ORBi :
since 11 September 2009

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