References of "Franssen, Jean-Marc"
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See detailFactors influencing the behavior of steel columns exposed to fire
Talamona, Didier; Kruppa, Joël; Franssen, Jean-Marc ULg et al

in Journal of Fire Protection Engineering (1996), 8(1), 31-43

Detailed reference viewed: 42 (3 ULg)
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See detailTime history versus ultimate state design in structures submitted to the fire
Franssen, Jean-Marc ULg

in Twilt, Leen (Ed.) 3rd CIB/W 14 FSF, Workshop on Modelling (1996)

It is shown that, in some cases, a determination of the ultimate load bearing capacity at a given (requested) fire resistance time is nearly equivalent to the fire resistance time obtained in a transient ... [more ▼]

It is shown that, in some cases, a determination of the ultimate load bearing capacity at a given (requested) fire resistance time is nearly equivalent to the fire resistance time obtained in a transient analysis when the structure is submitted to the same load. [less ▲]

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See detailA straightforward calculation method for the fire resistance of reinforced concrete columns
Dotreppe, Jean-Claude ULg; Franssen, Jean-Marc ULg; Vanderzeipen, Yves

Conference (1995, August 21)

A method has been derived for the fire design of concrete columns in the fire situation. This method has been derived from numerical calculations made with the non linear software SAFIR and has been ... [more ▼]

A method has been derived for the fire design of concrete columns in the fire situation. This method has been derived from numerical calculations made with the non linear software SAFIR and has been calibrated to obtain the best fit with the results of 76 full scale experimental tests: 16 performed in Belgium (University of Liege and University of Gent), 39 in Germany (Braunschweig) and 21 in Canada (NRC). The model proposed here has been slightly modified in a later version that is now present in Eurocode 2 (EN 1992-1-2), as tabulated data method A (section 5.3.2). This publication is thus a background document of EN 1992-1-2. [less ▲]

Detailed reference viewed: 62 (6 ULg)
See detailRecherche expérimentale sur le comportement au feu des colonnes en béton armé
Dotreppe, Jean-Claude ULg; Franssen, Jean-Marc ULg; Baus, Raymond et al

in Annales de l'Institut Technique du Bâtiment et des Travaux Publics (1995), 539(254), 25-41

Detailed reference viewed: 42 (7 ULg)
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See detailCompressive strength for service and accident conditions
Schneider, Ulrich; Schwesinger, P.; Debicki, Gérard et al

in Materials and Structures (1995), 28(181), 410-414

Detailed reference viewed: 50 (1 ULg)
See detailExperimenteel onderzoek naar het brandgedrag van kolommen in gewapend beton
Dotreppe, Jean-Claude ULg; Franssen, Jean-Marc ULg; Baus, Raymond et al

in Infrastructuur in het Leefmilieu (1995), 6

Detailed reference viewed: 14 (2 ULg)
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See detailNumerical simulation of a full scale fire test on a loaded steel framework
Franssen, Jean-Marc ULg; Cooke, C. M. E.; Latham, D. J.

in Journal of Constructional Steel Research (1995), 35

A single bay single storey steel portal frame has been tested under fire conditions. It is here simulated using hte non linear computer code CEFICOSS. The elements have composite steel-concrete sections ... [more ▼]

A single bay single storey steel portal frame has been tested under fire conditions. It is here simulated using hte non linear computer code CEFICOSS. The elements have composite steel-concrete sections for the thermal analysis, but only the steel part of the sections is load bearing. [less ▲]

Detailed reference viewed: 33 (1 ULg)
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See detailA Simple Model for the Fire Resistance of Axially-Loaded Members According to Eurocode 3
Franssen, Jean-Marc ULg; Schleich, Jean-Baptiste; Cajot, Louis-Guy

in Journal of Constructional Steel Research (1995), 35

New buckling curves have been developed for axialy loaded steel members subjected to fire. The model is based on extensive numerical simulations calibrated on several dozens of full scale experimental ... [more ▼]

New buckling curves have been developed for axialy loaded steel members subjected to fire. The model is based on extensive numerical simulations calibrated on several dozens of full scale experimental test results. This model has been subsequently included in Eurocode 3. [less ▲]

Detailed reference viewed: 41 (2 ULg)
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See detailBuckling of eccentrically loaded steel columns submitted to fire
Talamona, Didier; Franssen, Jean-Marc ULg; Recho, N.

in Proc. of the Intl Conf. on Fire Research and Engng (1995)

An interaction equation is proposed for steel columns subjected to fire under non axial loading. it is based on extensive numerical modelling and has been calibrated by comparison with several doezns of ... [more ▼]

An interaction equation is proposed for steel columns subjected to fire under non axial loading. it is based on extensive numerical modelling and has been calibrated by comparison with several doezns of full scale fire tests. This model has been subsequently incorporated in Eurocode 3. [less ▲]

Detailed reference viewed: 45 (8 ULg)
See detailFlambement plan des colonnes en acier laminé soumises à l'incendie
Franssen, Jean-Marc ULg

Scientific conference (1995)

The background of the buckling curves that are now introduced in Eurocode 3 (EN1993-1-2) for steel columns subjected to fire is given. It consist of an extensive campaign of numerical analyses, the ... [more ▼]

The background of the buckling curves that are now introduced in Eurocode 3 (EN1993-1-2) for steel columns subjected to fire is given. It consist of an extensive campaign of numerical analyses, the results of which have been calibrated by comparison with a data base of experimental test results. [less ▲]

Detailed reference viewed: 67 (2 ULg)
See detailSAFIR applied to prestressed beams at ambient temperature
Franssen, Jean-Marc ULg

Conference given outside the academic context (1995)

A round Robin test had been organised by the "Fédération de la Précontrainte". The loading of a post tensionned bridge had been numerically modelled until failure by 15 different software, including our ... [more ▼]

A round Robin test had been organised by the "Fédération de la Précontrainte". The loading of a post tensionned bridge had been numerically modelled until failure by 15 different software, including our software SAFIR. The results have been prestented to the commission. [less ▲]

Detailed reference viewed: 65 (0 ULg)
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See detailNumerical Procedure for Calculation of Temperature Evolution in Composite Elements with Internal Cavities
Luycks, Pierre; Stienon, P.; Franssen, Jean-Marc ULg et al

in Communications in Numerical Methods in Engineering (1994), 10(6), 437-451

In the paper a computation code based on the finite-element method for temperature evolutions in composite elements with internal cavities is presented. It is suitable for the analysis of various thermal ... [more ▼]

In the paper a computation code based on the finite-element method for temperature evolutions in composite elements with internal cavities is presented. It is suitable for the analysis of various thermal problems encountered in mechanical and civil engineering such as fire risk assessment. It is based on a plane isoparametric triangular element with six nodes allowing the modelling of curved boundaries. In order to analyze composite steel-concrete elements and to take into account the non-linearities coming from the temperature-dependent material properties and from the boundary conditions, an implicit integration scheme is used. Another advantage of the program is the possibility of describing internal cavities with convection and radiation exchanges. In order to show the capacity of the program two examples are presented. Comparisons have been made with experimental and other numerical results, exhibiting very good agreement. [less ▲]

Detailed reference viewed: 32 (3 ULg)
Peer Reviewed
See detailA concrete model considering the load history applied to centrally loaded columns under fire attack
Schneider, Ulrich; Morita, T.; Franssen, Jean-Marc ULg

in Proceedings of the fourth internatioanl symposium on fire safety science (1994)

A uniaxial constitutive model for concrete at elevated temperatures is presented. The model takes into account the effects of transient creep as well as the effects of the initial load level. It is based ... [more ▼]

A uniaxial constitutive model for concrete at elevated temperatures is presented. The model takes into account the effects of transient creep as well as the effects of the initial load level. It is based on experimental tests on concrete cylinders and is here validated by comparison with experimental test on short restrained columns. [less ▲]

Detailed reference viewed: 69 (2 ULg)
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See detailA comparison between five structural fire codes applied to steel elements
Franssen, Jean-Marc ULg; Schleich, Jean-Baptiste; Cajot, Louis-Guy et al

in Proceedings Fourth International Symposium on Fire Safety Science (1994)

Five codes have been used to simulate the fire behaviour of steel structural elements subjected to fire and the results have been compared. There is no coparison with experimental results.

Detailed reference viewed: 141 (1 ULg)
See detailRecent development in modelling of columns in fire at the University of Liège
Franssen, Jean-Marc ULg

Scientific conference (1993)

Detailed reference viewed: 14 (3 ULg)
See detailSAFIR applied to prestressed beams at ambient temperature
Franssen, Jean-Marc ULg

in External Prestressing in Structures. Non-Linear Calculation Tests of Prestressed Beams (1993)

Detailed reference viewed: 46 (6 ULg)
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See detailThermal elongation of concrete during heating up to 700°C and cooling; Stress-strain relationship of Tempcore steel after heating up to 650°C and cooling
Franssen, Jean-Marc ULg

Report (1993)

Experimental tests are reported on the thermal elongation of unloaded concrete specimen during heating and cooling. Steel reinforcing bars of Tempcore with diameters of 12 and 25 mm were tested at ... [more ▼]

Experimental tests are reported on the thermal elongation of unloaded concrete specimen during heating and cooling. Steel reinforcing bars of Tempcore with diameters of 12 and 25 mm were tested at elevated temperature (steady state as well as transient situation) and also after cooling down to 20°C. [less ▲]

Detailed reference viewed: 115 (13 ULg)
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See detailStress strain relationship of Tempcore steel after heating up to 650°C and cooling
Franssen, Jean-Marc ULg

Report (1993)

Reinforcing bars of 12 mm and 25 mm have been tested, at room temperature, at elevated temperatures (steady state and transient conditions), and after cooling from elevated temperatures. No decrease of ... [more ▼]

Reinforcing bars of 12 mm and 25 mm have been tested, at room temperature, at elevated temperatures (steady state and transient conditions), and after cooling from elevated temperatures. No decrease of the residual strength was observed as long as the elevated temperature has not exceeded 600°C. A slight decrease seems to appear for elevated temperatures beyond 600°C. Additional test for elevated temperatures higher than 680°C should ideally be performed to confirm this trend. [less ▲]

Detailed reference viewed: 129 (2 ULg)