References of "Franssen, Jean-Marc"
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See detailLes Eurocodes 2 et 4 – Partie Résistance au feu – Structures en béton et structures mixtes acier-béton
Franssen, Jean-Marc ULg

Conference given outside the academic context (2006)

Detailed reference viewed: 29 (0 ULg)
See detailA critical view on the parametric fire model of Eurocode 1
Franssen, Jean-Marc ULg

Scientific conference (2006, May 31)

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See detailCalculation of temperature in fire-exposed bare steel structures: Comparison between ENV 1993-1-2 and EN 1993-1-2
Franssen, Jean-Marc ULg

in Fire Safety Journal (2006), 41(2), 139-143

A comparison is made between the formula presented in ENV 1993-1-2 and EN 1993-1-2 for calculating temperature in bare steel structures subjected to fire. The ratio between the radiative energy considered ... [more ▼]

A comparison is made between the formula presented in ENV 1993-1-2 and EN 1993-1-2 for calculating temperature in bare steel structures subjected to fire. The ratio between the radiative energy considered in each formula is first calculated for 377 commercially available sections. The evolution of the steel temperature is then calculated in 4 different representative sections. On the basis of these comparisons and taking into account the fact that the load-bearing capacity has to be ensured in steel members, it does not appear that significant modifications in the safety level have been introduced from the ENV to the EN version of Eurocode 3. (C) 2005 Elsevier Ltd. All rights reserved. [less ▲]

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See detailSome comments on the Parametric Fire Model of Eurocode 1
Reitgrüber, Stefan; Pérez-Jimenez, Christian; Di Blasi, Colomba et al

Conference (2006)

In this paper, the modifications that have been recently introduced in the parametric fire model of Eurocode 1 are presented. The reasons behind these modifications are given. Some Problems that have been ... [more ▼]

In this paper, the modifications that have been recently introduced in the parametric fire model of Eurocode 1 are presented. The reasons behind these modifications are given. Some Problems that have been discovered in the present formulation are highlighted, namely the fact that the model is not continuous and the fact that the heat release of wood that has been used for the calibration of the model is not consistent anymore with the value that is now recommended in the Eurocode. A proposal is made that makes the model continuous. A new calibration of this modified model has been made on the base of the now recommended value of the heat release of wood with comparison to the results of some 50 full scale experimental fire tests. [less ▲]

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See detailProposal to the Eurocode 3 for the lateral-torsional buckling of stainless steel I-beams in case of fire
Lopes, N.; Vila Real, P. M. M.; Simoes da Silva, L. et al

in Vila Real, P. M. M. (Ed.) Proceedings of the 4th International Workshop Structures in Fire (2006)

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See detailNumerical validation of an improved proposal to the Eurocode 3 for lateral-torsional buckling of steel beams subjected to fire
Vila Real, P. M. M.; Lopes, N.; Simoes da Silva, L. et al

in Vila Real, P. M. M. (Ed.) Proceedings of the 4th International workshop Structures in Fire (2006)

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See detailNumerical analysis of the effect of localised fires on composite steel concrete buildings
Franssen, Jean-Marc ULg; Pintea, D.; Dotreppe, Jean-Claude ULg

in Vila Real, P. M. M. (Ed.) Proceedings of the 4th International workshop Structures in Fire (2006)

Detailed reference viewed: 14 (3 ULg)
See detailNumerical modelling of axially loaded stainless steel members under fire conditions
Franssen, Jean-Marc ULg; Lopes, N.; Vila Real, P. M. M. et al

in Camotim, D. (Ed.) Stability and ductility of steel structures (2006)

Detailed reference viewed: 10 (1 ULg)
See detailThermal stresses in glazing systems in buildings
Tofilo, P.; Delichatsios, M.; Nadjai, A. et al

in Vila Real, P. M. M. (Ed.) Proceedings of the 4th International workshop Structures in Fire (2006)

Detailed reference viewed: 28 (1 ULg)
See detailDesign of Steel Structures subjected to Fire. Background and Design Guide to Eurocode 3. 2nd édition
Franssen, Jean-Marc ULg; Zaharia, Raul

Book published by Les édtions de l'Université de Liège (2006)

The information that is necessary to perform the fire design of a structure made of a particular material, say a steel structure, is: a) The bases of design, stated in EN 1990. b) The mechanical actions ... [more ▼]

The information that is necessary to perform the fire design of a structure made of a particular material, say a steel structure, is: a) The bases of design, stated in EN 1990. b) The mechanical actions, i.e. the forces, acting on the structure in the fire situation. Some information is found in EN 1991-1-2, but explicit reference is also made to EN 1991-1-1 that is therefore also necessary. c) The thermal actions, i.e. the fire and the heat flux induced in the elements by the fire. The information is in EN 1991-1-2. d) The rules for determining the temperatures in the structure during the course of the fire. They are given in the fire part of the relevant material eurocode, e.g. EN 1993-1-2 for a steel structure. e) The rules for determining the structural stability. They are given in the fire part of the relevant material Eurocode, e.g. EN 1993-1-2 for a steel structure, but reference is often made to the cold part of the same material Eurocode, EN 1993-1-1 for a steel structure. This layout is valid in general but some exceptions do exist: the structural stability of timber elements, for example, does not necessarily require the determination of the temperatures in the element and step d) may be omitted; the same holds if the fire resistance is determined from tabulated data, for concrete elements for example. The rest of this book is organised according to this layout, see Fig. 1-2: Chapter 2 deals with bases of design and mechanical loads. Chapter 3 deals with thermal attack from the fire. Chapter 4 deals with thermal analysis by simple calculation model. Chapter 5 deals with mechanical analysis by simple calculation model. Chapter 6 deals with the design of joints. Chapter 7 deals with thermal and mechanical analysis by the advanced calculation model. Chapter 8 gives four design examples showing how a complete and sometimes complex structure can be designed using the concept of element or substructure analysis. [less ▲]

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See detailFire resistance of timbers from tropical countries and comparison of experimental charring rates with various models
Njankouo, Jacques Michel; Dotreppe, Jean-Claude ULg; Franssen, Jean-Marc ULg

in Construction & Building Materials (2005), 19(5), 376-386

Tropical hardwood species are more and more used in the field of construction due to the particular qualities they can offer. Presently it is no longer possible to envisage the development of construction ... [more ▼]

Tropical hardwood species are more and more used in the field of construction due to the particular qualities they can offer. Presently it is no longer possible to envisage the development of construction materials and products without taking into consideration the problem of their fire behaviour, and more particularly of their fire resistance. In the case of timber elements, this characteristic is mainly influenced by the charring rate of the external layers of the element. On the other hand this parameter is influenced by the density of the material. Limited information is available on the charring rate of tropical hardwood species. Therefore experimental investigations have been conducted at the University of Liege to study this characteristic. Seven tropical and three timber species from temperate countries have been examined. Two types of test have been used, one on small specimens, the other on a construction element made of one single material. In the first type, 20 specimens have been manufactured by gluing several laminates together. The specimens were instrumented with four thermocouples inserted at various depths in four different laminates. In the second type, a non-loaded wall made of 12 glued-laminated spruce beam profiles was instrumented with thermocouples embedded at different depths in the panel for the evaluation of the charring rate. Experimental charring rates have been compared with the results derived from Eurocode EC5-1.2 recommendation [ENV 1995-1-2. Eurocode 5: Design of timber structures - Part 1-2: General rules - Structural fire design. European prestandard; 1994], Australian standard AS 1720.4 relation [AS 1720.4. Timber structures Part 4: fire resistance of structural timber members. North Sydney, Australia: Standards Australia; 1990] and White's model [Charring rates of different wood species. PhD dissertation. Madison University of Wisconsin, Madison, WI, 1988; White RH, Erik V, Nordheim EV. Charring rate of wood for ASTM El 19 exposure. Fire Technol 1992-28(1)]. This comparison shows that the results obtained from these three models are not entirely satisfactory for tropical hardwood species. Therefore a new model has been proposed. (C) 2004 Elsevier Ltd. All rights reserved. [less ▲]

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See detailStructures in Fire: yesterday, today and tomorrow
Franssen, Jean-Marc ULg

in Gottluk, D T; Lattimer, B Y (Eds.) Fire Safety Science - Proceedings of the Eighth International Symposium (2005)

This paper presents the author's view on various methods used for the evaluation of the behaviour of structures submitted to fire, namely experimental testing, tabulated data, simple calculation methods ... [more ▼]

This paper presents the author's view on various methods used for the evaluation of the behaviour of structures submitted to fire, namely experimental testing, tabulated data, simple calculation methods and numerical simulation. The evolution during the last decades, and the pertinence of these methods in different situations are discussed. The challenges that scientists and researchers are facing now and the problems that will need be addressed in the future are presented. [less ▲]

Detailed reference viewed: 30 (3 ULg)
See detailFire safety engineering analysis of a super market structure composed of cambered cellular beams
Franssen, Jean-Marc ULg; Majkut, S.; Cajot, L.-G. et al

in Hoffmeister, B.; Hechler, O. (Eds.) Proceedings of the 4th European Conference on Steel and Composite Structures (EUROSTEEL 2005) (2005)

Detailed reference viewed: 25 (1 ULg)
See detailEffect of localised fires on continuous steel beams
Franssen, Jean-Marc ULg; Gens, F.; Dotreppe, Jean-Claude ULg

in Hoffmeister, B.; Hechler, O. (Eds.) Proceedings of the 4th European Conference on Steel and Composite Structures (EUROSTEEL 2005) (2005)

Detailed reference viewed: 24 (2 ULg)
See detailDesign of Structural Fire Protection and Fire Protection Systems
Franssen, Jean-Marc ULg

in Hosser, Dietmar (Ed.) Proceedings of the International Fire protection Symposium (2005)

Detailed reference viewed: 13 (1 ULg)
See detailFailure of a Tied-Arch Bridge Submitted to a Severe Localized Fire
Dotreppe, Jean-Claude ULg; Majkut, S.; Franssen, Jean-Marc ULg

in Proceedings of the IABSE Symposium Lisbon (2005)

Detailed reference viewed: 79 (2 ULg)
See detailProgressive load redistribution in continuous concrete beams and slabs under fire conditions
Dotreppe, Jean-Claude ULg; Gens, F.; Franssen, Jean-Marc ULg

in Proceedings of the fib Symposium "Keep concrete attractive" Vol.2 (2005)

Detailed reference viewed: 15 (3 ULg)
See detailFire resistance of unrestrained welded steel beams submitted to lateral-torsional buckling
Vila Real, P. M. M.; Lopes, N.; Simoes da Silva, L. et al

in Hoffmeister, B.; Hechler, O. (Eds.) Proceedings of the 4th European Conference on Steel and Composite Structures (EUROSTEEL 2005) (2005)

Detailed reference viewed: 11 (1 ULg)
See detailPlastic Analysis of Concrete Structures Subjected to Fire
Franssen, Jean-Marc ULg

in Gambarova, P. G. (Ed.) Proceedings of the Workshop "Pire Design of Concrete Structures: What now? What next?" (2005)

Detailed reference viewed: 40 (7 ULg)