Rankine approach for steel columns in fire: Numerical studies

Wee Siang Toh; Kang Hai Tan; Tat Ching Fung

doi:10.1016/S0143-974X(02)00038-X

Rankine approach for steel columns in fire: Numerical studies

Wee Siang Toh^*, Kang Hai Tan, Tat Ching Fung

^*Corresponding author for this work

Nanyang Technological University

Research output: Contribution to journal › Article › peer-review

Abstract

A finite element model has been extensively applied to verify the accuracy of the proposed Rankine formula for determining the fire resistance of bare steel columns. The parameters involved include relative slenderness ratio, load eccentricity, steel grade, and initial imperfections of initial crookedness and residual stresses. Through these parametric studies, it is possible to establish the safety limits on the application of the proposed Rankine formula. It is realised that incorporating a deflection control criterion in the evaluation of column elasticcritical loads helps to improve the overall performance of the formula. The Rankine formula is then compared to a series of 68 eccentrically-loaded column tests from the literature. The comparison study shows good agreement with both test results and analytical predictions.

Original language	English
Pages (from-to)	315-334
Number of pages	20
Journal	Journal of Constructional Steel Research
Volume	59
Issue number	3
DOIs	https://doi.org/10.1016/S0143-974X(02)00038-X
Publication status	Published - Mar 2003
Externally published	Yes

ASJC Scopus Subject Areas

Civil and Structural Engineering
Building and Construction
Mechanics of Materials
Metals and Alloys

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10.1016/S0143-974X(02)00038-X

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abstract = "A finite element model has been extensively applied to verify the accuracy of the proposed Rankine formula for determining the fire resistance of bare steel columns. The parameters involved include relative slenderness ratio, load eccentricity, steel grade, and initial imperfections of initial crookedness and residual stresses. Through these parametric studies, it is possible to establish the safety limits on the application of the proposed Rankine formula. It is realised that incorporating a deflection control criterion in the evaluation of column elasticcritical loads helps to improve the overall performance of the formula. The Rankine formula is then compared to a series of 68 eccentrically-loaded column tests from the literature. The comparison study shows good agreement with both test results and analytical predictions.",

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N2 - A finite element model has been extensively applied to verify the accuracy of the proposed Rankine formula for determining the fire resistance of bare steel columns. The parameters involved include relative slenderness ratio, load eccentricity, steel grade, and initial imperfections of initial crookedness and residual stresses. Through these parametric studies, it is possible to establish the safety limits on the application of the proposed Rankine formula. It is realised that incorporating a deflection control criterion in the evaluation of column elasticcritical loads helps to improve the overall performance of the formula. The Rankine formula is then compared to a series of 68 eccentrically-loaded column tests from the literature. The comparison study shows good agreement with both test results and analytical predictions.

AB - A finite element model has been extensively applied to verify the accuracy of the proposed Rankine formula for determining the fire resistance of bare steel columns. The parameters involved include relative slenderness ratio, load eccentricity, steel grade, and initial imperfections of initial crookedness and residual stresses. Through these parametric studies, it is possible to establish the safety limits on the application of the proposed Rankine formula. It is realised that incorporating a deflection control criterion in the evaluation of column elasticcritical loads helps to improve the overall performance of the formula. The Rankine formula is then compared to a series of 68 eccentrically-loaded column tests from the literature. The comparison study shows good agreement with both test results and analytical predictions.

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Rankine approach for steel columns in fire: Numerical studies

Abstract

ASJC Scopus Subject Areas

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