Numerical Investigations on the Performance of Axially Restrained Concrete-Filled Steel Columns Subjected to Fire Loads
the author of the article can submit here a request for assignment of a DOI number to this resource!
Cost of the service: euros 10,00 (for a DOI)
This paper presents the results of a numerical study on the performance of axially loaded concrete-filled steel columns subjected to fire loads, whose thermal expansion is restrained by the adjacent structural members. The study investigates the effect of three important parameters on the temperature distribution, axial displacements, lateral displacement and column failure temperature, namely: the axially restraint stiffness level, the initially applied column load level and the in-filled concrete strength. The finite element method with a nonlinear analysis is used to model the column using the software package SAFIR. The results show that the presence of the in-filled concrete in the column enhances the fire resistance of the column. On the other hand, the results exhibit that axial restraint can significantly reduce the fire resistance of a column based on the stiffness of this restraint. Based on the results obtained, interaction curves between the applied axial load and the corresponding failure temperatures are presented to be a convenient tool for engineers to quickly assess the column fire resistance.
Copyright © 2018 Praise Worthy Prize - All rights reserved.
Ayoub M. T., El-Hifnawy L. M., El-Heweity M. M., El-Deeb D. S., Fire resistance of axially restrained box steel columns incorporating post-buckling behavior, 5th International Conference on Civil & Architecture Engineering, 23-25 Nov. 2004, Cairo, Egypt.
Lie T. T., Chabot M., A method to predict the fire resistance of circular steel columns filled hollow steel columns, Journal of Fire Protection Engineering, Vol. 2, No. 4, 1990, pp. 111-126.
Lie T. T., Kodur V. K. R., “Fire resistance of circular steel columns filled with bar reinforced concrete, ASCE `Journal of Structural Engineering, Vol. 122, No.1, 1996, pp. 30-36.
Kodur V. K. R., Lie T. T., Fire resistance of circular steel columns filled with fiber reinforced concrete, ASCE Journal of Structural Engineering, Vol. 122, No. 7, 1996, pp. 776-782.
Wang Y. C., Davies J. M., An experimental study of the fire performance of non-sway loaded concrete-filled steel tubular column assemblies with extended end plate connections”, Journal of Constructional Steel Research, Vol. 59, 2003, pp. 819-838.
Han L. H., Yang Y. F., Xu L., An experimental study and calculation on the fire resistance of concrete-filled SHS and RHS columns, Journal of Constructional Steel Research, Vol. 59, 2003, pp. 427-452.
Huang Z., Tan K., Phng G., Axial restraint effects on the fire resistance of composite columns encasing I-section steel, Journal of Constructional Steel Research, Vol. 63, 2007, pp. 437-447.
Hunaiti Y. M., Bond strength in battened composite columns, ASCE Journal of Structural Engineering, Vol. 117, No. 3, 1991, pp. 699-714.
Chiang C. H., Tsai C. L., Time-temperature analysis of bond strength of a rebar after fire exposure, Cement and Concrete Research, Vol. 33, No.10, 2003,pp. 1651-1654.
Taoa Z., Hanc L. H., Uy B., Chenb X., Post-fire bond between the steel tube and concrete in concrete-filled steel tubular columns”, Journal of Constructional Steel Research, Vol. 67, 2011, pp. 484-496.
Franssen J. M., Kodur V. K. R., Mason J., User’s manual for SAFIR 2001- a computer program for analysis of structures submitted to the Fire, Belgium, University of Liege, 2000.
ISO (International Standards Organization). ISO 834, Fire resistance tests, elements of building construction, Switzerland: International Standards Organization, 1980.
ECP-LRFD: Load and resistance factor design. 205-MD No. 359-2007. Permanent Committee for the Code of Practice for Steel Construction and bridges, 2009.
EC3-Eurocode3: Design of steel structures. Part1–2: General rules-structural fire design, Brussels, Belgium, 2005.
EC2-Eurocode2: Design of concrete structures. Part1-2: General rules-structural fire design, Brussels, Belgium, 2004.
- There are currently no refbacks.
Please send any question about this web site to firstname.lastname@example.org
Copyright © 2005-2020 Praise Worthy Prize