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Exploratory study into a safety format for composite columns exposed to fire

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Abstract
Current performance based structural fire engineering approaches evaluate structural behaviour under prescribed fire scenarios. The mechanical properties of the materials, the load conditions and geometric parameters are all however fraught with uncertainty, and there is currently no clear safety format ensuring the reliability of the design solution. In this contribution, a safety format is explored for evaluating the fire resistance of composite columns, following results obtained in earlier studies on uncertainty quantification. Using the safety format, a single nonlinear finite element evaluation of the fire resistance time is combined with a global safety factor, defining its design value. Under the assumptions derived from earlier work, the safety format works well, but additional parameter studies indicate that good performance is limited to relatively low ambient design utilization ratios. The results thus highlight the importance of uncertainty quantification and the limitations of basing a safety format for structural fire design on limited studies. It is concluded that detailed studies into the probabilistic description of the response of composite columns exposed to fire are required to generalize the results to a broadly applicable design rule.
Keywords
fire, safety format, composite column, uncertainty, global safety factor, reliability, fire safety

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Please use this url to cite or link to this publication:

MLA
Van Coile, Ruben et al. “Exploratory Study into a Safety Format for Composite Columns Exposed to Fire.” Proceedings of ASFE 2019. 2019. Print.
APA
Van Coile, R., Gernay, T., Elhami Khorasani, N., & Hopkin, D. (2019). Exploratory study into a safety format for composite columns exposed to fire. Proceedings of ASFE 2019. Presented at the 6th international conference on Applications of Structural Fire Engineering (AFSE  ’19).
Chicago author-date
Van Coile, Ruben, Thomas Gernay, Negar Elhami Khorasani, and Danny Hopkin. 2019. “Exploratory Study into a Safety Format for Composite Columns Exposed to Fire.” In Proceedings of ASFE 2019.
Chicago author-date (all authors)
Van Coile, Ruben, Thomas Gernay, Negar Elhami Khorasani, and Danny Hopkin. 2019. “Exploratory Study into a Safety Format for Composite Columns Exposed to Fire.” In Proceedings of ASFE 2019.
Vancouver
1.
Van Coile R, Gernay T, Elhami Khorasani N, Hopkin D. Exploratory study into a safety format for composite columns exposed to fire. Proceedings of ASFE 2019. 2019.
IEEE
[1]
R. Van Coile, T. Gernay, N. Elhami Khorasani, and D. Hopkin, “Exploratory study into a safety format for composite columns exposed to fire,” in Proceedings of ASFE 2019, Singapore, 2019.
@inproceedings{8620795,
  abstract     = {Current performance based structural fire engineering approaches evaluate structural behaviour under prescribed fire scenarios. The mechanical properties of the materials, the load conditions and geometric parameters are all however fraught with uncertainty, and there is currently no clear safety format ensuring the reliability of the design solution. In this contribution, a safety format is explored for evaluating the fire resistance of composite columns, following results obtained in earlier studies on uncertainty quantification. Using the safety format, a single nonlinear finite element evaluation of the fire resistance time is combined with a global safety factor, defining its design value. Under the assumptions derived from earlier work, the safety format works well, but additional parameter studies indicate that good performance is limited to relatively low ambient design utilization ratios. The results thus highlight the importance of uncertainty quantification and the limitations of basing a safety format for structural fire design on limited studies. It is concluded that detailed studies into the probabilistic description of the response of composite columns exposed to fire are required to generalize the results to a broadly applicable design rule.},
  author       = {Van Coile, Ruben and Gernay, Thomas and Elhami Khorasani, Negar and Hopkin, Danny},
  booktitle    = {Proceedings of ASFE 2019},
  keywords     = {fire,safety format,composite column,uncertainty,global safety factor,reliability,fire safety},
  language     = {eng},
  location     = {Singapore},
  title        = {Exploratory study into a safety format for composite columns exposed to fire},
  year         = {2019},
}