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A parametric study on concrete columns exposed to biaxial bending at elevated temperatures using a probabilistic analysis

Lijie Wang (UGent) , Ruben Van Coile (UGent) , Robby Caspeele (UGent) and Luc Taerwe (UGent)
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Abstract
Concrete columns exhibit a loss of both strength and stiffness during fire. The current contribution focusses on the fire performance of concrete columns subjected to biaxial bending in combination with axial loads, as such information is rarely available in literature. First, the second-order effects are quantified using a numerical tool. In Eurocode 2, the most important parameters which influence second-order effects of columns during fire are the slenderness ratio, fire duration as well as the magnitude of the axial loading. The influences of these parameters are investigated using a parametric study. Additionally, from the viewpoint of fire safety and structural reliability, uncertainties should be incorporated in the second-order analysis in order to achieve reliability-based design guidelines. Hence, the numerical tool is further developed in order to take into account uncertainties. Furthermore, the tool is validated using the Eurocode provisions and existing experimental data, while considering an ISO 834 standard fire. Finally, examples are given for the fire resistance design of concrete columns.
Keywords
Concrete columns, biaxial bending, fire, probabilistic analysis

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MLA
Wang, Lijie, Ruben Van Coile, Robby Caspeele, et al. “A Parametric Study on Concrete Columns Exposed to Biaxial Bending at Elevated Temperatures Using a Probabilistic Analysis.” Hig Tech Concrete : Where Technology and Engineering Meet. Ed. D.A. Hordijk & M. Lukovic. Springer, 2017. 1662–1670. Print.
APA
Wang, Lijie, Van Coile, R., Caspeele, R., & Taerwe, L. (2017). A parametric study on concrete columns exposed to biaxial bending at elevated temperatures using a probabilistic analysis. In D. A. Hordijk & M. Lukovic (Eds.), Hig Tech Concrete : Where Technology and Engineering Meet (pp. 1662–1670). Presented at the fib Symposium "High Tech Concrete : Where technology and engineering meet, Springer.
Chicago author-date
Wang, Lijie, Ruben Van Coile, Robby Caspeele, and Luc Taerwe. 2017. “A Parametric Study on Concrete Columns Exposed to Biaxial Bending at Elevated Temperatures Using a Probabilistic Analysis.” In Hig Tech Concrete : Where Technology and Engineering Meet, ed. D.A. Hordijk and M. Lukovic, 1662–1670. Springer.
Chicago author-date (all authors)
Wang, Lijie, Ruben Van Coile, Robby Caspeele, and Luc Taerwe. 2017. “A Parametric Study on Concrete Columns Exposed to Biaxial Bending at Elevated Temperatures Using a Probabilistic Analysis.” In Hig Tech Concrete : Where Technology and Engineering Meet, ed. D.A. Hordijk and M. Lukovic, 1662–1670. Springer.
Vancouver
1.
Wang L, Van Coile R, Caspeele R, Taerwe L. A parametric study on concrete columns exposed to biaxial bending at elevated temperatures using a probabilistic analysis. In: Hordijk DA, Lukovic M, editors. Hig Tech Concrete : Where Technology and Engineering Meet. Springer; 2017. p. 1662–70.
IEEE
[1]
L. Wang, R. Van Coile, R. Caspeele, and L. Taerwe, “A parametric study on concrete columns exposed to biaxial bending at elevated temperatures using a probabilistic analysis,” in Hig Tech Concrete : Where Technology and Engineering Meet, Maastricht (Nederland), 2017, pp. 1662–1670.
@inproceedings{8523832,
  abstract     = {Concrete columns exhibit a loss of both strength and stiffness during
fire. The current contribution focusses on the fire performance of concrete columns
subjected to biaxial bending in combination with axial loads, as such
information is rarely available in literature. First, the second-order effects are
quantified using a numerical tool. In Eurocode 2, the most important parameters
which influence second-order effects of columns during fire are the slenderness
ratio, fire duration as well as the magnitude of the axial loading. The influences of
these parameters are investigated using a parametric study. Additionally, from the
viewpoint of fire safety and structural reliability, uncertainties should be incorporated
in the second-order analysis in order to achieve reliability-based design
guidelines. Hence, the numerical tool is further developed in order to take into
account uncertainties. Furthermore, the tool is validated using the Eurocode
provisions and existing experimental data, while considering an ISO 834 standard
fire. Finally, examples are given for the fire resistance design of concrete columns.},
  author       = {Wang, Lijie and Van Coile, Ruben and Caspeele, Robby and Taerwe, Luc},
  booktitle    = {Hig Tech Concrete : Where Technology and Engineering Meet},
  editor       = {Hordijk, D.A. and Lukovic, M.},
  isbn         = {978-3-319-59470-5},
  keywords     = {Concrete columns,biaxial bending,fire,probabilistic analysis},
  language     = {eng},
  location     = {Maastricht (Nederland)},
  pages        = {1662--1670},
  publisher    = {Springer},
  title        = {A parametric study on concrete columns exposed to biaxial bending at elevated temperatures using a probabilistic analysis},
  url          = {http://dx.doi.org/10.1007/978-3-31959471-2},
  year         = {2017},
}

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