References of "Jaspart, Jean-Pierre"
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See detailPrefabricated composite beam-to-concrete filled tube or partially reinforced-concrete-encased column connections for severe seismic and fire loadings
Bursi, Oreste; Ferrario, Fabio; Haller, Mike et al

Report (2008)

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See detailContribution to the derivation of robustness requirements for steel and composite structures
Jaspart, Jean-Pierre ULg; Demonceau, Jean-François ULg

in Proceedings of Advances in steel structures Conference (2007, December)

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See detailNumerical and analytical investigations on iron columns reinforced by FRP under axial compression
Ly, Dong Phuong Lam ULg; Rondal, Jacques ULg; Jaspart, Jean-Pierre ULg

in Smith, S. T. (Ed.) Asia-Pacific Conference on FRP in Structures-APFIS07 (2007, December)

This paper presents numerical and analytical investigations on iron columns under axial compression, strengthened with high modulus carbon fibre reinforced polymer (FRP) sheets. Numerical and analytical ... [more ▼]

This paper presents numerical and analytical investigations on iron columns under axial compression, strengthened with high modulus carbon fibre reinforced polymer (FRP) sheets. Numerical and analytical models are proposed to predict the resistance and stability load of such elements, including effects of section and member geometrical imperfections and of the nonlinear characteristic and the anisotropy in post elasticity of iron material. It is shown that axial resistance and stiffness of iron columns can be increased significantly with the use of longitudinal FRP sheets as a result of the reduction of the column slenderness, but also that transverse FRP sheets should also be used to avoid any local buckling of the longitudinal FRP sheets during loading. [less ▲]

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See detailExperimental investigations on the behaviour of a composite frame after the loss of a column
Demonceau, Jean-François ULg; Jaspart, Jean-Pierre ULg

in Beale, R. G. (Ed.) Proceeding of the 6th International Conference on Steel and Aluminium Structures (2007, July 24)

Recent events such as natural catastrophes or terrorism attacks have highlighted the necessity to ensure the structural integrity of buildings under exceptional loading, i.e. other accidental loads than ... [more ▼]

Recent events such as natural catastrophes or terrorism attacks have highlighted the necessity to ensure the structural integrity of buildings under exceptional loading, i.e. other accidental loads than those already taken into consideration in the design process. According to Eurocodes and some other national design codes, the structural integrity of civil engineering structures should be ensured through appropriate measures but, in most of the cases, no precise practical guidelines on how to achieve this goal are provided. Even basic requirements to fulfil are generally not clearly expressed. An European RFCS project called “Robust structures by joint ductility” has been set up in 2004, for three years, with the aim to provide requirements and practical guidelines allowing to ensure the structural integrity of steel and composite structures under exceptional loading through an appropriate robustness. This project involves analytical, numerical and experimental investigations; in particular, one substructure test simulating the loss of a column in a composite building, because of an unexpected impact, was performed in September 2006 at the University of Liège. This paper describes the experimental test carried out at the University of Liège, as part of this European project, and the first interpretation of the results. [less ▲]

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See detailRobustness - Robust structures by joint ductility
Kuhlmann, Ulrike; Rölle, Lars; Jaspart, Jean-Pierre ULg et al

in Wald, F.; Mazzolani, F.; Byfield, M. (Eds.) et al Urban Habitat Constructions under Catastrophic Events (2007, March 30)

In view of recent disasters and their immense economical and human consequences more and more focus is given not only on the safety of structures - to reduce the risk for the life of people by collapse ... [more ▼]

In view of recent disasters and their immense economical and human consequences more and more focus is given not only on the safety of structures - to reduce the risk for the life of people by collapse even under exceptional loading – but on minimizing the disastrous results and to enable a quick rebuilding and reuse. One crucial mean to achieve this aim is the design of redundant robust structures. Robustness prevents the collapse of the total structure when only parts of the structure are damaged or destroyed. To avoid progressive failure, redundant structures with inherent sufficient ductile behaviour allowing deformations when a local failure occurs, have to be built. Redundancy can be achieved by allowing force redistribution within a structural system. Therefore the single sections and joints have to be especially designed and optimized, not necessarily requiring additional fabrication costs. But until now no specific rules for robustness by ductile joints exist. The aim of the present project is to define general requirements for ductile joints as part of a structural system subjected to exceptional unforeseen loading. [less ▲]

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See detailDesign of beam-columns in steel sway frames: from the actual member to a simply supported equivalent one
Hansoulle, T.; Boissonnade, N.; Goncalves, R. et al

in Proceedings of the 2007 Annual Technical Stability Conference, Structural Steel Research Council (2007)

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See detailLateral torsional buckling resistance of web-tapered I-beams under linear bending moments
Vermeulen, T.; Jaspart, Jean-Pierre ULg; Boissonnade, N.

in Proceedings of the 5th International Conference on Advances in Steel Structures (2007)

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See detailEUROCODE 3 EN 1993 Exemples d’application au calcul des structures en acier
Jaspart, Jean-Pierre ULg

in EUROCODE 3 EN 1993 Exemples d’application au calcul des structures en acier (2007)

La rédaction d’une législation européenne pour le calcul et le dimensionnement des structures du génie civil, entamée à la moitié des années ’70, est en voie de finalisation. Sous peu, divers Eurocodes ... [more ▼]

La rédaction d’une législation européenne pour le calcul et le dimensionnement des structures du génie civil, entamée à la moitié des années ’70, est en voie de finalisation. Sous peu, divers Eurocodes structuraux seront publiés sous leur forme définitive et accompagnés de leur annexe nationale, complément indispensable à leur application en Belgique. Il en sera notamment ainsi de l’Eurocode 3, consacré aux structures en acier. Si les nouvelles normes font appel à bon nombre de concepts connus, elles préconisent également des approches de calcul soit novatrices, soit plus larges au niveau de leur champs d’application. Les différences substantielles entre la version définitive (EN) et la version précédente (ENV) de l’Eurocode 3, ainsi que la publication des modalités d’utilisation pour la Belgique (Annexe Nationale), justifi ent la décision prise ces dernières années par le Centre Information Acier d’organiser régulièrement des formations à la conception et au dimensionnement de bâtiments en acier. Dans un premier temps, ces formations se sont limitées à la présentation du contenu de l’Eurocode 3, d’abord dans sa version ENV (en 1998), puis dans sa version EN (en 2004). Mais il est rapidement apparu qu’une démarche plus ambitieuse encore devait être suivie, dont l’objectif serait de mettre davantage l’accent sur les aspects pratiques de conception et de dimensionnement. Une approche pédagogique nouvelle a dès lors été développée et mise en oeuvre, à la satisfaction de tous, à l’occasion de formations à l’Eurocode 3 organisées récemment à Luxembourg (printemps 2005) et à Paris (automne 2005). Le principe consiste à partir d’exemples d’application concrets et de les analyser, étape par étape, en abordant dans le détail la diversité des possibilités de calcul offertes par le document normatif, leur mise en oeuvre et les conséquences de la sélection de l’une d’entre elles dans une situation précise. Lors de ces formations récentes, deux structures et plusieurs variantes ont été choisies comme références : Structure 1 : ossature rigide contreventée à assemblages articulés - Variante A : assemblages semi-rigides - Variante B : comportement à l’incendie - Variante C : poutre de toiture en profilé reconstitué soudé Structure 2 : ossature souple non contreventée à assemblages semi-rigides Ces exemples d’application ont été préparés, au départ, dans le cadre d’un projet européen coordonné par l’Université de Liège, qui visait à la rédaction d’un manuel d’utilisation de l’Eurocode 3, dans sa version ENV. Ils ont ici été revus à la lumière de la version définitive EN de l’Eurocode. Suite à de nombreuses demandes reçues depuis lors par le Centre Information Acier, ces exemples d’application ont été publiés une première fois en 2006 et font l’objet aujourd’hui d’une seconde édition. [less ▲]

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See detailEurocode 4 EN 1994: Exemples d'application au calcul des structures mixtes acier - béton
Jaspart, Jean-Pierre ULg; Maquoi, René ULg; Demonceau, Jean-François ULg et al

in Jaspart, Jean-Pierre; Maquoi, René; Demonceau, Jean-François (Eds.) et al Eurocode 4 EN 1994: Exemples d'application au calcul des structures mixtes acier - béton (2007)

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See detailRecent investigations on the behaviour of buildings after the loss of a column
Demonceau, Jean-François ULg; Luu, Nguyen Nam Hai ULg; Jaspart, Jean-Pierre ULg

in Dubina, Dan; Ungureanu, Viorel (Eds.) Steel: a new and traditional material for building (2006, September 20)

Recent events such as natural catastrophes or terrorism attacks have highlighted the necessity to ensure the structural integrity of buildings under exceptional events. According to Eurocodes and some ... [more ▼]

Recent events such as natural catastrophes or terrorism attacks have highlighted the necessity to ensure the structural integrity of buildings under exceptional events. According to Eurocodes and some different other national design codes, the structural integrity of civil engineering structures should be ensured through appropriate measures but, in most of the cases, no precise practical guidelines on how to achieve this goal are provided. An European RFCS project entitled “Robust structures by joint ductility” has been set up in 2004, for three years, with the aim to provide requirements and practical guidelines allowing to ensure the structural integrity of steel and composite structures under exceptional events through an appropriate robustness. In particular, one substructure test simulating the loss of a column in a composite building will be performed at Liège University. The present paper described first analytical and numerical studies carried out at Liège University as part of this European project. [less ▲]

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See detailEvaluation of the load bearing capacity of thin-walled steel members for long span composite floors
Rossi, Barbara ULg; Jaspart, Jean-Pierre ULg

in International Colloquium on Stability and Ductility of Steel Structures : SDSS2006, Lisbon 6-8 September 2006 (2006)

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See detailElements de construction mixte
Jaspart, Jean-Pierre ULg; Maquoi, René ULg; Demonceau, Jean-François ULg

Learning material (2006)

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See detailFirst practical implementation of the component method to joints in tubular construction
Weynand, K.; Busse, E.; Jaspart, Jean-Pierre ULg

in Proceedings of the 11th International Symposium on Tubular Structures (2006)

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See detailRobust structures by joint ductility
Kuhlmann, U.; Jaspart, Jean-Pierre ULg; Vassart, O. et al

in Proceedings of the IABSE Symposium on Responding to Tomorrows Challenges in Structural Engineering (2006)

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See detailEuropean design recommendations for simple joints in steel structures
Jaspart, Jean-Pierre ULg

in Proceedings of the International Conference on Stability and Ductility of Steel Structures (2006)

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See detailExperimental and numerical study of flange class 3 cross-section members
Boissonnade, N.; Jaspart, Jean-Pierre ULg

in Proceedings of the International Conference on Stability and Ductility of Steel Structures (2006)

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See detailApplicability of composite structures to sway frames
Bitar, D.; Caramelli, S.; Salvatore, W. et al

Report (2006)

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See detailRules for Member Stability in EN 1993-1-1: Background documentation and design guidelines
Boissonnade, N.; Greiner, R.; Jaspart, Jean-Pierre ULg et al

Book published by ECCS European Convention for Constructional Steelwork (2006)

This volume intends at helping in the understanding of the new design rules for member stability in Eurocode 3 Part 1.1 (EN 1993-1-1:2005). In particular, the new recommendations for lateral torsional ... [more ▼]

This volume intends at helping in the understanding of the new design rules for member stability in Eurocode 3 Part 1.1 (EN 1993-1-1:2005). In particular, the new recommendations for lateral torsional buckling and beam-column stability in chapter 6.3.3 (4) of Eurocode 3 are concerned. It is divided into two independent parts A and B. Part A, devoted to the background of the proposed formulae, gives further information on the way the formulae have been built and validated. Moreover, the different basic concepts used in the formulae are detailed, for the two sets of formulae proposed in the code. It is to be noted that a great number of papers prepared within the development of the formulae are made available by means of a CD-Rom that is part of this publication. Part B is dedicated to practitioners; it contains fully detailed worked examples on isolated members, from basic situations to the most complex one. In addition, an example of design of a member extracted from a frame is also given. Furthermore an annex shows especially the determination of the elastic lateral torsional buckling moment for different loading and support conditions. [less ▲]

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See detailApplication of the component method to structural joints with dowel fasteners in timber construction
Ly, Dong Phuong Lam ULg; François, N.; Mertens, A. et al

in Aoki, Tetsuhiko; Itoh, yoshito (Eds.) Proceedings of the first international conference on advances in experimental structural engineering (2005, July)

A general procedure for the evaluation of the mechanical properties of structural joints, named “component method” [01], is now available from intensive research works at the European level. This ... [more ▼]

A general procedure for the evaluation of the mechanical properties of structural joints, named “component method” [01], is now available from intensive research works at the European level. This procedure allows the analytical prediction of the resistance, but also of the stiffness and the deformation capacity, of structural joints under external forces (axial or shear forces, bending moments, …). In the present paper, timber joints with dowel fasteners are considered. Two components may be identified: the “dowel fastener in bending and shear” and the “timber member in embedding”. [less ▲]

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See detailDesign of composite sway building frames for global instability
Demonceau, Jean-François ULg; Jaspart, Jean-Pierre ULg; Maquoi, René ULg

in Journal of Engineering Mechanics (2005), 131(6), 641-653

Eurocode 4 is the European design code for composite construction; in its so-called ENV version, the scope is limited to "nonsway buildings" with efficient bracing systems. Therefore, it gives mainly ... [more ▼]

Eurocode 4 is the European design code for composite construction; in its so-called ENV version, the scope is limited to "nonsway buildings" with efficient bracing systems. Therefore, it gives mainly rules to analyze and to check structural elements like beams, columns, slabs, and joints. However, in the last years, the construction of taller buildings and larger industrial halls without wind bracing systems is susceptible to make global instability a relevant failure mode, which is not covered by Eurocode 4. For 3 years, in the framework of a European research project funded by the European Community for Steel and Coal, in which the Univ. of Liege was deeply involved, intensive experimental, numerical, and theoretical investigations have been carried out. The latter aimed at improving the knowledge in the field of sway composite frames and at developing appropriate design rules. The rotational behavior of the beam-to-column composite joints is one of the key aspects of the problem to which special attention has been paid. This paper presents the numerical and analytical studies carried out at Liege Univ., as part of above European project, with the objective to investigate the behavior of sway composite structures under static loading. Particular phenomena put into sight through different analyses are illustrated herein. The actual response of the beam-to-column composite joints may be easily integrated into the described design and analysis procedures; this specific aspect is therefore not addressed in the paper. [less ▲]

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