/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://dx.doi.org/10.1002/fam.880 Fire and Materials, 29, 3, pp. 165-179, 2005-05-01 Thermal properties of lightweight-framed construction components at elevated temperatures Bénichou, N.; Sultan, M. A. ABSTRACTFire resistance behaviour of lightweight-framed assemblies is determined by defining the thermal and structural performances of the assembly when exposed to fire. To adequately model thermal behaviour in a lightweight wood-framed assembly, thermal properties of the components of the assembly at elevated temperatures must be well defined. This paper presents results of measurements of thermal properties at elevated temperatures of construction materials commonly used to build lightweight wood-framed assemblies that were conducted at the National Research Council of Canada since 1990. The test results, in graphical form, are given as a function of temperature for thermal conductivity, specific heat, mass loss and thermal expansion/contraction for wood, gypsum and insulation. In addition, effects of temperature on the thermal conductivity, specific heat, mass loss and thermal expansion/contraction of these materials are discussed. Finally, in addition to providing a resource of information, this paper also identifies the additional thermal property tests required to complete the matrix of information.

Building codes in many countries around the world are shifting from prescriptive-based to performance-based, a move that is due, in part, to the negative aspects of the prescriptive codes, to economic and social reasons, to advances made in fire science and engineering, to the need for codes to use fire safety engineering principles within the context of their regulations and to the global harmonization of regulation systems. In addition, the performance-based codes approach improves the regulatory environment by establishing clear code objectives and safety criteria and leaving the means of achieving these objectives to the designer. Hence, the codes will be more flexible in allowing innovation, more functional, less complex and easier to apply. Another advantage of performance-based codes is that they will permit the incorporation and use of the latest building and fire research, data and models. These models will be used as the tools for measuring the performance of any number of design alternatives against the established safety levels. The optimum design would meet the code safety objectives and the needs of both the designer and the user. The claimed advantages of such a design is that it can provide improved safety and design functionality at reduced costs. This paper presents the results of the literature survey on the efforts to move from the prescriptive building regulations to performance-based regulations. This paper also describes the required steps for developing performance-based codes. The description outlines the set of objectives formulated internationally, the deterministic and probabilistic design criteria for quantifying the desired fire safety objectives, and safety factors that should be applied to the performance criteria to permit the designer to conservatively assess the design and to allow for a smaller margin of error. Finally, some of the existing fire safety design methods are presented along with a brief description of computerized fire tools.

/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://dx.doi.org/10.1007/s10694-009-0116-6Fire Technology, 45, 4, pp. 1-18, 2009-12-01 Mechanical characterization of fibre reinforced polymers materials at high temperatures Chowdhury, R.; Eedson, R.; Bisby, L. A.; Green, M. F.; Bénichou, N.http://www.nrc-cnrc.gc.ca/irc M e c ha nic a l c ha ra c t e riza t ion of fibre re inforc e d polym e rs m a t e ria ls a t high t e m pe ra t ure s NRCC-50851Chowdhury, R.; Eedson, R.; Bisby, L.A.; Green, M.F.; Bénichou, N. December 2009A version of this document is published in / Une version de ce document se trouve dans:Fire Technology, 45, no. 4, pp. 1-18, DOI: 10.1007/s10694-009-0116-6 The material in this document is covered by the provisions of the Copyright Act, by Canadian laws, policies, regulations and international agreements. Such provisions serve to identify the information source and, in specific instances, to prohibit reproduction of materials without written permission. For more information visit http://laws.justice.gc.ca/en/showtdm/cs/C-42Les renseignements dans ce document sont protégés par la Loi sur le droit d'auteur, par les lois, les politiques et les règlements du Canada et des accords internationaux. Ces dispositions permettent d'identifier la source de l'information et, dans certains cas, d'interdire la copie de documents sans permission écrite. Abstract. One of the greatest impediments to using fibre reinforced polymer (FRP) composites in buildings and parking garages is their susceptibility to degradation when exposed to elevated temperatures and the limited knowledge on the thermal and mechanical properties of these composites at such temperatures. Glass FRP (GFRP) tensile coupons and single lap-splice coupons were tested in tension to study the mechanical properties under steady-state and transient thermal conditions. Tests were conducted at a range of temperatures between room temperature and +200°C. In terms of tensile strength, approximately half of the strength of the FRP was lost near the glass transition temperature of the epoxy resin matrix. However, 40% of the room temperature strength of the GFRP was still retained at 200°C. The lap-splice tests showed that the FRP-to-FRP bond strength was affected even more by high temperature exposure with 90% loss in lap-splice near the glass transition temperature. An analy...

/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://dx.doi.org/10.1016/S0926-5805(98)00096-X Automation in Construction, 8, 4, pp. 489-501, 1999-04-01 Performance criteria used in fire safety design Hadjisophocleous, G. V.; Bénichou, N. AbstractIn many countries around the world, building codes are shifting from prescriptive-to performance-based for technical, economic, and social reasons. This move is made possible by progress in fire safety technologies, including the development of engineering tools that are required to implement performance codes. The development of performance-based codes follows a transparent, hierarchical structure in which there are usually three levels of objectives. The top level objectives usually state the functional requirements and the lowest level the performance criteria. Usually, one middle level exists, however, more levels can be used in this hierarchical structure depending on the complexity of the requirements. The success of performance-based codes depends on the ability to establish performance criteria that will be verifiable and enforceable. The performance criteria should be such that designers can easily demonstrate, using engineering tools, that their designs meet them and that the code authority can enforce them. This paper presents the performance criteria that are currently used by fire protection engineers in designing fire safety systems in buildings. These include deterministic and probabilistic design criteria as well as safety factors. The deterministic criteria relate mainly to life safety levels, fire growth and spread levels, fire exposure and structural performance. The probabilistic criteria focus on the incident severity and incident likelihood. Finally, the inclusion of safety factors permits a conservative design and allows for a smaller margin of error due to uncertainty in the models and the input data. Crown Copyright© 1999 Published by Elsevier Science B.V. All rights reserved.

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