A Comparison Between Five Structural Fire Codes Applied To Steel Elements

Franssen, Jean‐Marc; Schleich, Jean-Baptiste; Cajot, Louis‐Guy; Talamona, Didier; Zhao, Bin; Twilt, L.; Both, Kees

doi:10.3801/iafss.fss.4-1125

Cited by 19 publications

(8 citation statements)

References 1 publication

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“…The tests have been simulated with the code SAFIR [3] and with the code Fires -Frame I [4,5]. The calculated temperatures are in good agreement with the experimental results, and were applied to the calculations of structural fire behaviour.…”

Section: The Simulationsmentioning

confidence: 74%

“…Franssen and Schneider have recently updated the model proposed in [I], and Franssen has introduced it in the code SAFIR which is being developed at the university of Liege [3]. While spending a year in Vienna, Morita has also incorporated this updated version of the Schneider model in the code Fires -Frame I developed at Chiba University [4,5].…”

Section: Introductionmentioning

confidence: 99%

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A Concrete Model Considering The Load History Applied To Centrally Loaded Columns Under Fire Attack

Schneider¹,

Morita²,

Franssen³

1994

Fire Safety Science - Proceedings of the Fourth International S

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ABSTRACT.The description is given of a model for concrete in compression at elevated temperature that incorporates elastic, plastic and creep strains as functions of the temperature and stress history. The plastic strain and the creep strain depend on the stress history and the stiffness of the model depends on the load level during fire exposure. The proposed model is an updated version of a model presented earlier by one of the author [I].Fifteen fire resistance tests have been performed on reinforced concrete columns centrally loaded under various heating, loading and restraint conditions. From the test results, it can be concluded that the strength of columns during fire is irrelevant to the restraint of elongation, and that the sustained load about 0.15 load level leads to a higher residual strength than the unloaded condition does.A comparison is given between experimental results and computed results. The calculations were performed either with the proposed Schneider concrete model or with the EC4 concrete model. The proposed model is closer to experimental values than the EC4 model when considering longitudinal displacements as well as axial restraint forces.

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Section: The Simulationsmentioning

confidence: 74%

Section: Introductionmentioning

confidence: 99%

A Concrete Model Considering The Load History Applied To Centrally Loaded Columns Under Fire Attack

Schneider¹,

Morita²,

Franssen³

1994

Fire Safety Science - Proceedings of the Fourth International S

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“…Finite element models of the structural components were developed using the ANSYS parametric design language (Franssen, 1995) and coupled with fire simulations to predict their thermal response. Figure 2-2 is a finite element representation of the 3.05 m long steel bar.…”

Section: Model Simulationsmentioning

confidence: 99%

Fire structure interface and thermal response of World Trade Center towers

Prassad¹,

Baum²

2005

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Certain commercial entities, equipment, products, or materials are identified in this document in order to describe a procedure or concept adequately or to trace the history of the procedures and practices used. Such identification is not intended to imply recommendation, endorsement, or implication that the entities, products, materials, or equipment are necessarily the best available for the purpose. Nor does such identification imply a finding of fault or negligence by the National Institute of Standards and Technology. Disclaimer No. 2 The policy of NIST is to use the International System of Units (metric units) in all publications. In this document, however, units are presented in metric units or the inch-pound system, w/hichever is prevalent in the discipline. Disclaimer No. 3 Pursuant to section 7 of the National Construction Safety Team Act, the NIST Director has determined that certain evidence received by NIST in the course of this Investigation is "voluntarily provided safety-related information" that is "not directly related to the building failure being investigated" and that "disclosure of that information would inhibit the voluntary provision of that type of information" (15 USC 7306c). In addition, a substantial portion of the evidence collected by NIST in the course of the Investigation has been provided to NIST under nondisclosure agreements. Disclaimer No. 4 NIST takes no position as to whether the design or construction of a WTC building was compliant with any code since, due to the destruction of the WTC buildings, NIST could not verify the actual (or as-built) construction, the properties and condition of the materials used, or changes to the original construction made over the life of the buildings. In addition, NIST could not verify the interpretations of codes used by applicable authorities in determining compliance when implementing building codes. Where an Investigation report states whether a system was designed or installed as required by a code provision, NIST has documentary or anecdotal evidence indicating whether the requirement was met, or NIST has independently conducted tests or analyses indicating whether the requirement was met. Use in Legal Proceedings No part of any report resulting from a NIST investigation into a structural failure or from an investigation under the National Construction Safety Team Act may be used in any suit or action for damages arising out of any matter mentioned in such report (15 USC 281a; as amended by P.L. 107-231).

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“…It has initially been published by Franssen et al [25] and has shown that five different computer codes using beam finite elements and under increasing temperature give similar results. The structure is shown in Figure 13.…”

Section: Lee's Frame At Elevated Temperaturesmentioning

confidence: 50%

“…The results under fire conditions have been compared with the same finite element software as have been used for the comparison at room temperature [25]. It can be seen ( Figure 14) that in case of bending (SAFIR-Bending) the shell element of SAFIR gives results close to the beam element.…”

Section: Figure 14 Horizontal Displacement Vs Temperaturementioning

confidence: 97%

A Quadrangular Shell Finite Element for Concrete and Steel Structures Subjected to Fire

Talamona¹

2005

Journal of Fire Protection Engineering

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SAFIR is finite element software for the thermal and mechanical analysis of structures exposed to fire. For mechanical analysis, a library of different elements is available in SAFIR: truss, beam, etc. In order to increase SAFIR's capabilities, a quadrangular shell element has been implemented. This element is not subject to 'locking' (or over-stiffness) in the case of 'membrane bending'. Different material models can be used. These are plasticity models based on the von Mises surface (for isotropic materials), plus a Rankine tension cut off for concrete. The parameters of the models as well as the hardening laws have been chosen in such a way as to fit the recommendations of Eurocode 2 and 3 for uniaxial stress-strain curves of concrete and steel under fire condition. Some verification and validation examples at room and at elevated temperatures are presented.

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A Comparison Between Five Structural Fire Codes Applied To Steel Elements

Cited by 19 publications

References 1 publication

A Concrete Model Considering The Load History Applied To Centrally Loaded Columns Under Fire Attack

A Concrete Model Considering The Load History Applied To Centrally Loaded Columns Under Fire Attack

Fire structure interface and thermal response of World Trade Center towers

A Quadrangular Shell Finite Element for Concrete and Steel Structures Subjected to Fire

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