References of "Jaspart, Jean-Pierre"
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See detailRecent investigations on composite sway frames
Demonceau, Jean-François ULiege; Jaspart, Jean-Pierre ULiege

in Journal of Civil Engineering & Management (2004), X(1), 15-23

A modern design code for composite construction such as Eurocode 4 limits its scope to “non-sway buildings” with efficient bracing systems. Therefore, it gives mainly rules to analyse and to check ... [more ▼]

A modern design code for composite construction such as Eurocode 4 limits its scope to “non-sway buildings” with efficient bracing systems. Therefore, it gives mainly rules to analyse 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, what is not yet covered by Eurocode 4. For three years, in the framework of a European research project funded by the European Community for Steel and Coal (ECSC), in which Liège University 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 behaviour of the beam-to-column composite joints is one of the key aspects of the problem to which a special attention has been paid. This paper presents numerical and analytical studies carried out at Liège University, as part of the above European project, with the objective to investigate the behaviour of 2D composite sway frames under static loading. Particular phenomena put into sight through different analyses are illustrated herein. [less ▲]

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See detailIs it safe to design a building structure with simple joints, when they are known to exhibit a semi-rigid behaviour?
Braham, Marc ULiege; Jaspart, Jean-Pierre ULiege

in Journal of Constructional Steel Research (2004), 60(3-5, MAR-MAY), 713-723

It is shown, by means of computer simulations of the behaviour of a real structure, that it is safe to design a building with the assumption of pinned joints, even when they show a semi-rigid behaviour ... [more ▼]

It is shown, by means of computer simulations of the behaviour of a real structure, that it is safe to design a building with the assumption of pinned joints, even when they show a semi-rigid behaviour. This result is however limited to the cases where the joints show a high ductility, i.e. a capacity of large deformation before the rupture of either the bolts or the welds. Only in few, probably unrealistic cases, this assumption will lead to unsafe results, the lack of safety being however very small, amounting only to a few percent. (C) 2003 Elsevier Ltd. All rights reserved. [less ▲]

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See detailStudy of the behaviour of welded joints between elliptical hollow sections
Pietrapertosa, C.; Jaspart, Jean-Pierre ULiege

in Proceedings of the 10th International Symposium on Tubular Structures (2003)

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See detailTesting and modelling of welded joints between elliptical hollow sections
Bortolotti, E.; Jaspart, Jean-Pierre ULiege; Pietrapertosa, C. et al

in Proceedings of the 10th International Symposium on Tubular Structures (2003)

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See detailClinching joining system: validation of numerical models
Pietrapertosa, C.; Zhang, Lihong ULiege; Habraken, Anne ULiege et al

in Brucato, V. (Ed.) Proceedings of the 6th International ESAFORM Conference on Material Forming (2003)

The clinching process, also known as “press joining”, is a mechanical joining technique for sheet metal. Its basic principle is to clamp together several metal sheets by an impact extrusion between a ... [more ▼]

The clinching process, also known as “press joining”, is a mechanical joining technique for sheet metal. Its basic principle is to clamp together several metal sheets by an impact extrusion between a punch and a die. The joint is formed by a localized cold plastic deformation. Forming is used as a joining method. Within the context of this research, University of Liège is developing numerical models, with the FEM code LAGAMINE, that simulate the clinching process. On the other hand, shear tests on simple joints with one or two clinches were realized and their behaviour is reproduced numerically with LAGAMINE. This work opens the way to the analytical formulation of the behaviour of clinched joints. The article will focus on comparisons between experiments and numerical simulations. First, the identification of model parameters will be explained. Then, the predicted failure modes will be analysed by comparison with the xperiments. [less ▲]

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See detailImprovement of the interaction formulae for beam columns in Eurocode 3
Boissonnade, N.; Jaspart, Jean-Pierre ULiege; Muzeau, J. P. et al

in Computers & Structures (2002), 80(27-30), 2375-2385

This paper presents a new proposal for beam-column interaction formulae initially based on second-order in-plane elastic theory, as an alternative to those proposed in the Eurocode 3 pre-standard [1]. It ... [more ▼]

This paper presents a new proposal for beam-column interaction formulae initially based on second-order in-plane elastic theory, as an alternative to those proposed in the Eurocode 3 pre-standard [1]. It has been derived according to the following requirements: theoretical background, clear physical meaning, consistency with the other related formulae of Eurocode 3 and accuracy. Besides that, the suggested formulae cover all required continuities: between the cross-section classes, from plasticity to elasticity as slenderness and axial force increase, and continuity between all the individual stability member checks and cross-section verifications. Further to the presentation of the formulae and their background, the good agreement of the proposal is shown through an extensive comparison with more than 15,000 results of finite element numerical simulations. (C) 2002 Civil-Comp Ltd. and Elsevier Science Ltd. All rights reserved. [less ▲]

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See detailAnalytical study of the interaction between bending and axial force in bolted joints
Boissonnade, N.; Jaspart, Jean-Pierre ULiege; Muzeau, J. P. et al

in Proceedings of the Third European Conference on Steel Structures (EUROSTEEL) (2002)

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See detailA simple approach for the design of steel and composite sway building frames
Maquoi, René ULiege; Jaspart, Jean-Pierre ULiege

in Steel Structures (2002), 2(n°1), 1-11

The Merchant-Rankine approach is a practical design procedure which allows to predict the ultimate resistance of sway steel building frames with rigid structural joints. In the present paper the ... [more ▼]

The Merchant-Rankine approach is a practical design procedure which allows to predict the ultimate resistance of sway steel building frames with rigid structural joints. In the present paper the background and the traditional field of application of the Merchant-Rankine formula are first described. Its extension to the design of steel frames with so-called semi-rigid joints is then presented and justified. Finally its application to steel-concrete sway composite building frames is investigated and first conclusions of this work are drawn. [less ▲]

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See detailIs it safe to design a building structure with simple connections, when they are known to exhibit a semi-rigid behaviour
Braham, M.; Jaspart, Jean-Pierre ULiege

in Proceedings of the Third European Conference on Steel Structures (EUROSTEEL) (2002)

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See detailNew interaction formulae for beam-columns in Eurocode 3: the French Belgian approach
Jaspart, Jean-Pierre ULiege; Cerfontaine, F.

in Proceedings of the Third European Conference on Steel Structures (EUROSTEEL) (2002)

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See detailDesign of structural joints in building frames
Jaspart, Jean-Pierre ULiege

in Progress in Structural Engineering and Materials (2002), 4(1), 18-34

A single and unified concept for the design of structural joints in building frames made of any material has been developed in recent years, and is now widely implemented in European design codes. In the ... [more ▼]

A single and unified concept for the design of structural joints in building frames made of any material has been developed in recent years, and is now widely implemented in European design codes. In the present paper, this concept is presented, its merits as far as the economy of a project are demonstrated, and practical design tools for its application in daily practice are briefly described. The paper also contains references to user's manuals and design handbooks. [less ▲]

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See detailEssais et modélisations d'assemblages soudés entre tubes elliptiques
Bortolotti, E.; Jaspart, Jean-Pierre ULiege; Pietrapertosa, C. et al

in Revue de Métallurgie [=Revue de Métallurgie. Cahiers d'Informations Techniques] (2002)

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See detailMerchant-Rankine approach for the design of steel and composite sway building frames
Jaspart, Jean-Pierre ULiege

in Festschrift Richard Greiner (2001)

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See detailInfluence des Assemblages sur la Conception d'une structure
Jaspart, Jean-Pierre ULiege

Learning material (2001)

Les approches traditionnelles du dimensionnement des ossatures sont décrites brievement: modélisation en ossature continue avec assemblages rigides eilou en ossature simple avec assemblages articulés ... [more ▼]

Les approches traditionnelles du dimensionnement des ossatures sont décrites brievement: modélisation en ossature continue avec assemblages rigides eilou en ossature simple avec assemblages articulés, méthode dite des “wind moments" approche de “resistance partielle" calcul rigide-plastique. L'approche moderne clu dimensionnement des ossatures, c'est-à-dire la modélisation en structure semi-continue faisant appel à des assemblages semi-rigicles. est ensuite esquissée; il est expliqué comment la distinguer des approches traditionnelles et lesavantages potentiels (scientifiques et économiques) de son utilisation sont soulignés. Une méthode de dimensionnement cohérente est décrite, dans laquelle le comportement des assemblages est pris en compte dans l'analyse globale dès le départ. ll est rnontré comment modifier les approches de modélisations en structure simple ou en structure continue pour mieux respecter une méthode de calcul cohérente. Il est expliqué qu'une méthode de calcul cohérente peut prendre différentes formes qui dépendent des hypothèses prises pour le comportement des assemblages dans l‘analyse globale. De l'intervenant responsable du dimensionnement des assemblages et/ou du degré de collaboration entre les parties concernées (concepteur et fabricant). Des pratiques de dimensionnement sont identifiées, qui montrent comment les tâches du calcul sont, ou peuvent être, partagées. Il est expliqué qu‘une bonne compréhension clu partage du calcul est essentielle pour modifier la pratique courante de sorte 51 permettre l'utilisation d'une méthode de calcul cohérente. [less ▲]

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See detailÜberblick über die Weiterbildung- und Dchulungsmethoden von Stahlbau.- Verbundbaukonstruktionen sowie EC3, EC4.
Jaspart, Jean-Pierre ULiege; Couchman, G.

in Proceedings du Seminaire "Eurocodes im Bauwesen: Status, Lehrprogramme, Hilfsmittel zur Schulung" (2001, January 26)

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See detailEurocodes 3 et 4
Jaspart, Jean-Pierre ULiege

in Journée Technique Construction Métallique (2001)

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See detailThe interaction formulae for beam-columns: a new step of yet long story
Maquoi, René ULiege; Boissonnade, N.; Muzeau, J. P. et al

in Proceedings 2001 of the SSRC Annual Technical Session and Meeting (2001)

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See detailExtension of the component method to joints in tubular construction
Jaspart, Jean-Pierre ULiege; Weynand, K.

in Puthli, R.; Herion, S. (Eds.) Proceedings of the Ninth International Symposium and Euroconference on Tubular Structures (2001)

Detailed reference viewed: 149 (4 ULiège)