References of "Franssen, Jean-Marc"
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See detailSeismic-induced fire resistance of composite welded beam-to-column joints with concrete-filled tubes
Pucinotti, Raffaele; Bursi, Oreste; Franssen, Jean-Marc ULg et al

in Fire Safety Journal (2011), 46

Major earthquakes in urban areas have often been followed by significant fires that cause extensive damage to property. Therefore, a seismic-induced fire is a scenario that should be addressed properly in ... [more ▼]

Major earthquakes in urban areas have often been followed by significant fires that cause extensive damage to property. Therefore, a seismic-induced fire is a scenario that should be addressed properly in performance-based engineering. In this paper, numerical and experimental results of welded steel–concrete composite full-strength beam-to-column joints under post-earthquake fires are described. This was part of a European project aimed at developing fundamental data and prequalification design guidelines of ductile and fire-resistant composite beam-to-column joints with concrete-filled tubes. In detail, seismic and fire analyses were used to design moment-resisting frames endowed with the proposed joint typology. A total of six specimens were designed and subjected to both monotonic and cyclic lateral loads. The specimens were subassemblages of beam-to-column joints, and performed well. Since the scope of the project was to promote joint typologies able to survive a seismic-induced fire, some specimens were pre-damaged before being subjected to fire loadings by imposing monotonic loads equivalent to damage levels induced by seismic loadings. Thus, after fire testing, valuable information about the performance of the proposed joint typology was obtained, and the adequacy of the concurrent seismic and fire design was demonstrated. [less ▲]

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See detailNumerical modeling of building structures in fire conditions
Binh, Chu Thi; Dotreppe, Jean-Claude ULg; Franssen, Jean-Marc ULg

in Van Lien, Nguyen; Duc, Do Dinh (Eds.) Proceedings of the workshop on “Construction under Exceptional Condition – CEC2010” (2010, October 29)

Numerical modelling is a very useful tool to predict the fire resistance of a structure, or to reproduce artificially what has happened during a real fire. SAFIR, a non linear computer code developed at ... [more ▼]

Numerical modelling is a very useful tool to predict the fire resistance of a structure, or to reproduce artificially what has happened during a real fire. SAFIR, a non linear computer code developed at the university of Liege-Belgium, is specifically written for modeling the behavior of structures subjected to fire. It allows a determination of the temperatures in the structure esulting from the fire and, in a subsequent analysis, determination of the successive positions of equilibrium of the structure until collapse. SAFIR program accommodates various elements for different idealizations, different calculation procedures and several material models incorporating stress-strain behaviour. The elements include 2-D SOLID, 3-D SOLID, BEAM, SHELL and TRUSS elements. The stress-strain material laws are generally linear-elliptic for steel and nonlinear for concrete. This paper introduces the main hypotheses, the possibilities and the validity of this program. Comparisons of test results and simulated results by SAFIR program for concrete structures, steel structures and concrete-steel composite structures are presented. [less ▲]

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See detailPrise en compte des effets indirects dans l’évaluation de la stabilité au feu de bâtiments industriels en acier
Franssen, Jean-Marc ULg

Conference given outside the academic context (2010)

What are indirect effects of actions? Do we have to take these effects into account? How to take these effects into account?

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See detailRecherche dans le domaine du béton à l'Université de Liège (2009-2010)
Dotreppe, Jean-Claude ULg; Franssen, Jean-Marc ULg; Somja, H. et al

Scientific conference (2010, October 21)

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See detailEurocodes applied to fire scenarios. From a fire scenario to dimensioning
Franssen, Jean-Marc ULg

Conference given outside the academic context (2010)

The general context for utilisation of the fire Eurocodes in Belgium is given. The field of application covered by the Eurocodes is presented. The different sources of obligation for using the Eurocodes ... [more ▼]

The general context for utilisation of the fire Eurocodes in Belgium is given. The field of application covered by the Eurocodes is presented. The different sources of obligation for using the Eurocodes are presented, as well as the different sources where requirements in term of fire resistance are coming. The difference is shwon beteween tabulated data, simple calculation models and general calculation models. [less ▲]

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See detailCours de prévention incendie
Franssen, Jean-Marc ULg

Learning material (2010)

Generalities Legislation Reaction to fire Fire resistance - tests Material properties in case of fire Fire resistance of load bearing structures Fire resistance of compartmentation

Detailed reference viewed: 199 (9 ULg)
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See detailAuto. & RoB. Extension Hall 5 + Bureau. Avis sur la conformité à l'Annexe 6 des normes de Base.
Franssen, Jean-Marc ULg

Report (2010)

The plans of an extension to be build to an industrial building have been examined in order to verify that the extensioncomplies with the recommendations contained in Annex 6 "Industrial buildings" of the ... [more ▼]

The plans of an extension to be build to an industrial building have been examined in order to verify that the extensioncomplies with the recommendations contained in Annex 6 "Industrial buildings" of the Belgian Basis Norms. [less ▲]

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See detailSimulation of a window frame exposed to fire
Franssen, Jean-Marc ULg; Alonso, Alain

Report (2010)

The temperature distribution is evaluated in the section of a window frame and the structural behaviour of the frame is then evaluated in the fire situation

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See detailSome theoretical and practical aspects about CFD-FE coupling for structures subjected to fire
Franssen, Jean-Marc ULg

Scientific conference (2010, August 05)

Four Powerpoint presentations present: 1) The main aspects of the structural software SAFIR developped for the simulation of the bahaviour of structures subjected to fire. 2) The main aspects of the CFD ... [more ▼]

Four Powerpoint presentations present: 1) The main aspects of the structural software SAFIR developped for the simulation of the bahaviour of structures subjected to fire. 2) The main aspects of the CFD sofware FDS developped for the analysis of compartment fires. 3) some theoretical and practical aspects to be considered when these two software have to be coupled. 4) one particluar way of organising a one way coupling from any CFD to any FE software. [less ▲]

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See detailFICEB W.P.6 final report: Numerical simulations of the large scale fire test
Gernay, Thomas ULg; Franssen, Jean-Marc ULg

Report (2010)

This report presents the results of the numerical simulations performed by University of Liege in the framework of work package 6 of the FICEB project financed by the Research Fund for Coal and Steel. A ... [more ▼]

This report presents the results of the numerical simulations performed by University of Liege in the framework of work package 6 of the FICEB project financed by the Research Fund for Coal and Steel. A full scale fire test was performed in Ulster on February 27th 2010 on a composite floor for analysing the behaviour of long cellular steel beams in a complete compartment office in building structure under realistic fire conditions. The aim was to study the possibility of tensile membrane action to develop when the unprotected steel beams in the central part of the floor are made of cellular beams. Predictive numerical simulations of the test have been performed with the software SAFIR in order to define the appropriate structure to be used for the full scale fire test. As predicted, the structure was able to withstand the test without collapse. After the test, the results of the predictive simulations have been compared to the measured results, showing relatively good agreement. [less ▲]

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See detailPropagation de fumées
Dumont, Fabien ULg; Alonso, Alain; Franssen, Jean-Marc ULg

Report (2010)

The aim of the project is to see whether it makes a difference in term of propagation of smoke to compartments outside the fire compartment, whether "normal" fire resistant doors are provided or whether ... [more ▼]

The aim of the project is to see whether it makes a difference in term of propagation of smoke to compartments outside the fire compartment, whether "normal" fire resistant doors are provided or whether doors with particular properties related to smoke propagation (Sa or Sm) are provided. Two types of building have been considered: one of horizontal shape (representative of a hotel or a hospital floor) and one of vertical shape (representative of a dxellings building). Different scenario have been considered with respect to the type of doors, the fact that different doors or windons are open or not, the presence of wind... Observed results in different compartment are the thickness of the smoke free layer, the temperature of the smoke layer, the obscurtion or the CO content. [less ▲]

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See detailPreliminary Research Study on the Fire Resistance of Stainless Steel-Reinforced Concrete members
Gernay, Thomas ULg; alonso, Alain; Franssen, Jean-Marc ULg

Report (2010)

In this project, it is examined whether and under which conditions the good resistance to high temperature of stainless steel bars can lead to better fire resistance when used in reinforced concrete ... [more ▼]

In this project, it is examined whether and under which conditions the good resistance to high temperature of stainless steel bars can lead to better fire resistance when used in reinforced concrete columns, beams and slabs working in tensile membrane action. [less ▲]

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See detailExperimental investigations and analytical models for behavior of Grade 8.8 bolts and butt welds under heating and subsequent cooling
Hanus, François ULg; Zilli, Giuliana; Franssen, Jean-Marc ULg

in kodur, venkatesh; Franssen, Jean-Marc (Eds.) Structures in Fire - Proceedings of the Sixth International Conference (2010, June 03)

The present article describes the experimental tests undertaken on Grade 8.8 tests and butt welds at the Centro Sviluppo Materiali during heating or subsequent cooling, presents a model for the force ... [more ▼]

The present article describes the experimental tests undertaken on Grade 8.8 tests and butt welds at the Centro Sviluppo Materiali during heating or subsequent cooling, presents a model for the force-displacement diagram of bolts during a natural fire that integrates the influence of the temperature history, and gives values of strength reduction factors for the cooling phase [less ▲]

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See detailModélisation multi physique du comportement au feu des colonnes en béton arme
Benmehidi, Nadia; Franssen, Jean-Marc ULg; Guenfoud, Mohamed

Scientific conference (2010, June)

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See detailConsideration of Transient Creep in the Eurocode Constitutive Model for Concrete in the Fire situation
Gernay, Thomas ULg; Franssen, Jean-Marc ULg

in Kodur, Venkatesh; Franssen, Jean-Marc (Eds.) Proceedings of the Sixth International Conference Structures in Fire (2010, June)

This paper presents a new formulation of the generic Eurocode 2 concrete model that contains an explicit term for consideration of the transient creep. The simplicity and generic characteristics of the ... [more ▼]

This paper presents a new formulation of the generic Eurocode 2 concrete model that contains an explicit term for consideration of the transient creep. The simplicity and generic characteristics of the Eurocode model are preserved and the new explicit formulation is calibrated to give the same results as the implicit formulation that is proposed in the Eurocode when the material is heated under constant load. However, the improvements allow taking into account with more accuracy the phenomenon of transient creep in concrete under more complex situations such as, for example, the cooling phase of a fire. The differences between the two formulations are highlighted for a simple structure. A comparison is given between experimental and calculated results on a centrally loaded concrete column submitted to heating-cooling sequence. [less ▲]

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See detailNumerical modelling of membrane action of composite slabs in fire situation
Vulcu, Cristian; Gernay, Thomas ULg; Zaharia, Raul et al

in Kodur, Venkatesh; Franssen, Jean-Marc (Eds.) Proceedings of the Sixth International Conference Structures in Fire (2010, June)

Membrane action in fire is now an intensively researched area, for which more improvement is always necessary. The paper presents some numerical simulations, done with the SAFIR program, in order to ... [more ▼]

Membrane action in fire is now an intensively researched area, for which more improvement is always necessary. The paper presents some numerical simulations, done with the SAFIR program, in order to derive more simple models for representing the partially protected composite floors in fire situation. The numerical models are calibrated using the results of three full scale tests that have been performed in recent years. [less ▲]

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See detailLarge-scale fire test of unprotected cellular beam acting in membrane action
Vassart, Olivier; Bailey, C. G.; Hawes, M. et al

in Franssen, Jean-Marc; Kodur, Venkatesh (Eds.) Proceedings of the Sixth International Conference Structures in Fire (2010, June)

This paper describes a full scale fire test performed recently on a composite floor for analysing the possibility of tensile membrane action to develop when the unprotected steel beams in the central part ... [more ▼]

This paper describes a full scale fire test performed recently on a composite floor for analysing the possibility of tensile membrane action to develop when the unprotected steel beams in the central part of the floor are made of cellular beams. The natural fire was created by a wood crib fire load of 700 MJ/m² and the 9 x 15 m floor survived the fire that peaked at 1000°C and lasted for 90 minutes. Blind predictions of the air temperature development by the software Ozone and of the structural behaviour by the software SAFIR which proved quite satisfactory are also described. [less ▲]

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See detailConcept of structural fire safety for bridges K05 and K01
Franssen, Jean-Marc ULg

Report (2010)

The fire scenario as well as the extent of fire protection to apply to these two bridge structures are investigated.

Detailed reference viewed: 37 (3 ULg)
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See detailMaison Josten à Mürringen
Franssen, Jean-Marc ULg; Dupont, Jean-Pierre

Report (2010)

Analyse d'une dalle dans une ferme après incendie afin de déterminer si l'incendie a affaibli la capacité bportante de la dalle.

Detailed reference viewed: 38 (3 ULg)
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See detailEvaluation of Structural Fire Performance. Today and Tomorrow
Franssen, Jean-Marc ULg; Gernay, Thomas ULg; Hanus, François ULg et al

Conference given outside the academic context (2010)

The most recent applications in evaluation of structural fire performance performed at the University of Liege are described. Five topics are discussed: analysis of 3D structures, joints in steel ... [more ▼]

The most recent applications in evaluation of structural fire performance performed at the University of Liege are described. Five topics are discussed: analysis of 3D structures, joints in steel structures, spalling in concrete structures, cellular beams and tensile membrane action. [less ▲]

Detailed reference viewed: 159 (40 ULg)