Fire Resistance of Steel Columns Filled with Bar-Reinforced Concrete

Lie, T. T.; Kodur, Venkatesh

doi:10.1061/(asce)0733-9445(1996)122:1(30)

Cited by 74 publications

(36 citation statements)

References 3 publications

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“…ASCE gives the fire resistance rating ≤ 2 hrs of hollow steel columns filled with unreinforced normal weight concrete as: = effective length of column; 6.5 ≤ ≤ 13 ft or 2000 ≤ ≤ 4000 mm ; = outside diameter of circular column; 5.5 ≤ ≤ 16 in or 140 ≤ ≤ 410 mm ; = outside dimension of square column; 5.5 ≤ ≤ 12 in or 140 ≤ ≤ 305 mm ; = least outside dimension of rectangular column; 5.5 ≤ ≤ 12 in or 140 ≤ ≤ 305 mm ; = compressive force due to unfactored dead load and live load (kips or kN) ≤ design strength of concrete core. (Kodur, 1998;Lie and Chabot, 1992;Lie and Kodur, 1996). Typical test results show axial expansion at the beginning of the fire, followed by sharp contraction, then a more gradual contraction.…”

Section: Asce /Sei/sfpe 29-05 Standard Calculation Methods For Structmentioning

confidence: 99%

Structural Design for Fire: A Survey of Building Codes and Standards

Duthinh¹

2014

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This document is a critical assessment of building codes and standards pertaining to structural design for fire from the United States, Canada, European Union members, Japan, New Zealand and Australia. These countries were selected because of their vigorous research activities on this topic, and the relevance of their engineering practice to that in the US. In the US, there is a dynamic interplay between various consensus-based code writing bodies (such as the International Building Code), and professional associations (such as the Society of Fire Protection Engineers, the National Fire Protection Association, the American Society for Testing and Materials, the American Society of Civil Engineers, the American Institute for Steel Construction, the American Concrete Institute International, and the Precast/prestressed Concrete Institute), which can produce authoritative and influential guidance documents. It has been necessary to study not just the codes and standards, but also the specifications and guides where applicable. The review presents both prescriptive and performance-based standards, but puts more emphasis on the latter, and topics that are the subject of current research or in need of updating. The structural materials covered are steel, concrete and composites of steel and concrete. The assessment identifies gaps in U.S. codes and standards for the design of structures for fire.

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Section: Asce /Sei/sfpe 29-05 Standard Calculation Methods For Structmentioning

confidence: 99%

Structural Design for Fire: A Survey of Building Codes and Standards

Duthinh¹

2014

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“…Aggregate factor described by Tan and Tang [2004] based on studies by Lie and Woollerton [1998] and Lie and Kodur [1996]:…”

Section: Ultimate Load Calculation-simplified Methodsmentioning

confidence: 99%

Best practice guidelines for structural fire resistance design of concrete and steel buildings

2010

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This document is intended to provide practicing engineers and building code officials with a technical resource that contains the current "best practice" for fire-resistant design of concrete and steel structures. The report provides a review of existing U.S. and international guidelines and design standards, which use approaches that range from simple prescriptive methods to sophisticated software programs with advanced methods of analysis under a wide range of realistic fire conditions. Basic concepts of risk-informed decision making for mitigating fire risk, and a general framework for assessing fire risk to building construction and for developing structural design requirements for fire conditions are described. Current best knowledge in thermal and mechanical properties and behaviors of normal strength concrete, high strength concrete, structural steel, and several major groups of common fire protection materials at elevated temperatures, which are necessary for performance-based engineering calculation, are presented. Modern fire-resistant design methodologies for concrete and steel structures are discussed, including methods based on standard fire tests as well as performance-based engineering analysis methods that involve heat transfer and structural analysis at elevated temperatures.This report is not intended to provide step-by-step design procedures. Rather, it provides general guidance on the approaches to, and practical aspects of, implementing a fire-resistant design approach for concrete and steel buildings. The guidance includes key concepts and examples for identifying performance objectives, conducting risk analyses, selecting design fire scenarios and fire exposure curves, and implementing heat transfer and structural response analyses for the structural fire-resistant design of concrete and steel structures.The best practice guidelines document is intended to be a technical resource that provides the most complete information for structural fire-resistant design at present. The document is a nonconsensus, non-mandatory document and, as such, it does not represent a minimum standard of care.

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“…The above problem can be overcome by using bar-reinforced filling in HSS columns (Lie and Kodur 1996a). The fire resistance of such columns improved significantly and the load bearing capacity of the column increased.…”

Section: Design Implicationsmentioning

confidence: 99%

Evaluation of fire resistance of rectangular steel columns filled with fibre-reinforced concrete

Kodur¹,

Lie²

1997

Can. J. Civ. Eng.

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/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/10.1139/cjce-24-3-339Canadian Journal of Civil Engineering, 24, 3, pp. 339-349, 1997-06-01 Evaluation of fire resistance of rectangular steel columns filled with fibre-reinforced concrete Kodur, V. K. R.; Lie, T. T.Evaluation of fire resistance of rectangular steel columns filled with fibre-reinforced concrete V.K.R. Kodur and T.T. Lie Abstract: Experimental and theoretical studies that have been carried out to predict the fire resistance of rectangular hollow steel columns filled with fibre-reinforced concrete are presented in this paper. A numerical model to calculate the temperatures, deformations, and the fire resistance of loaded, rectangular, hollow steel columns filled with steel-fibre-reinforced concrete is described. Predictions from the numerical model are compared with experimental data. The results indicate that the model is capable of predicting the fire resistance of square hollow steel columns filled with fibre-reinforced concrete with an accuracy that is adequate for practical purposes. The model can be used to evaluate the fire resistance of rectangular steel columns filled with steel-fibre-reinforced concrete for any value of the significant parameters, such as load, column section dimensions, column length, concrete strength, and aggregate type in concrete, without the necessity of testing.Key words: fire resistance, numerical model, calculation, square steel columns, hollow structural section, concrete-filled columns, fibre-reinforced concrete.Résumé : Cet article présente des études théoriques et expérimentales effectuées afin de prédire la résistance au feu de colonnes rectangulaires creuses en acier remplies de béton armé de fibres. Un modèle numérique calculant les températures, les déformations et la résistance au feu de colonnes creuses en acier remplies de béton armé de fibres et soumises à un chargement, est décrit. Les prédictions du modèle numérique sont comparées aux données expérimentales. Les résultats indiquent que le modèle est capable de prédire la résistance au feu des colonnes carrées creuses en acier remplies avec du béton armé de fibres avec une précision convenable à des fins pratiques. Le modèle peut évaluer la résistance au feu de colonnes rectangulaires en acier remplies de béton armé de fibres utilisant n'importe quelle valeur po...

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Fire Resistance of Steel Columns Filled with Bar-Reinforced Concrete

Cited by 74 publications

References 3 publications

Structural Design for Fire: A Survey of Building Codes and Standards

Structural Design for Fire: A Survey of Building Codes and Standards

Best practice guidelines for structural fire resistance design of concrete and steel buildings

Evaluation of fire resistance of rectangular steel columns filled with fibre-reinforced concrete

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