AN EXTRAPOLATION METHOD OF THE STEEL TEMPERATURE RISE IN FIRE RESISTANCE TEST
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- ISHIHARA Takahiro
- Science University of Tokyo
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- HARADA Kazunori
- Kyoto University
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- YUSA Syuitsu
- Building Research Institute. MOC
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- WAKAMATSU Takao
- Science University of Tokyo
Bibliographic Information
- Other Title
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- 鋼材柱の耐火試験結果の外挿法
- コウザイ チュウ ノ タイカ シケン ケッカ ノ ガイソウホウ
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Abstract
A theoretical method is proposed to extrapolate the steel temperature under standard fire tests for various cross sectional areas of steel and insulation thickness. The method utilizes the parameter estimation technique, where the parameter in the lumped heat transfer model is estimated to fit to the steel temperature rise in a standard fire resistance test. By using the estimated parameters, the steel temperature rise of similar assemblies can be calculated changing the steel cross sectional area and insulation thickness. An example is shown for a steel column (H-section, 300 × 300 × 13 × 15) insulated with calcium silicate board. The extrapolated results are compared with fire test data. It is shown that the extrapolated results give conservative results for most of the cases. Thus the method is useful for engineering calculations. However, the extrapolation overestimates the time to critical temperature if the method is applied to thinner columns under more severe mechanical conditions thus identifying the limitations of this method.
Journal
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- Journal of Structural and Construction Engineering (Transactions of AIJ)
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Journal of Structural and Construction Engineering (Transactions of AIJ) 66 (541), 205-210, 2001
Architectural Institute of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282680615303808
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- NII Article ID
- 110004304006
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- NII Book ID
- AN10438559
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- ISSN
- 18818153
- 13404202
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- NDL BIB ID
- 5718684
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed