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INVESTIGATION OF FIRE PERFORMANCE OF CONCRETE FILLED STEEL TUBE COLUMNS
Abstract
In concrete filled steel tube (CFST) columns, while steel confines the concrete and increases the compressive strength, concrete delays the local buckling of the steel. With this study, it is aimed to compile the latest developments related to the factors affecting fire resistance of CFST columns and bring them to the literature. According to infill types, high fire resistance is obtained from steel bar reinforced, steel fiber reinforced and plain CFST columns, respectively, and circular, elliptical, square and rectangular columns according to section type. The fire resistance increases with the increase of the column cross-sectional area. While the increase in the strength of the steel tube leads to a decrease in the fire resistance, it is understood that the thickness of the steel tube does not have a significant effect. In some studies, it is reported that the fire resistance increases with the increase of concrete strength, while in others it decreases. In addition, it is among the findings obtained that the CFST columns produced with concrete containing carbonated aggregate provide higher fire resistance than those with silica. The fire resistance of CFST columns is highly affected by the applied load level and eccentricity and is inversely proportional to both.
Keywords
References
- Alhatmey, I. A. H. (2020). Residual Strength Capacity of Fire-Exposed Concrete Filled Steel Tube Columns. Doctoral Thesis. Gaziantep University, Institute of Natural and Applied Science, Gaziantep.
- Aribert, J.M., Renaud, C., & Zhao, B. (2008). Simplified Fire Design for Composite Hollow-Section Columns. In Proceedings of the Institution of Civil Engineers - Structures and Buildings. (161(6), pp. 325-336).
- CEN (2005). BS EN 1994-1-2, Eurocode 4 Design of Composite Steel and Concrete Structures Part 1-2: General Rules-Structural Fire Design. Brussels, Belgium.
- Chung, K., Park, S., & Choi, S. (2008). Material Effect for Predicting the Fire Resistance of Concrete-Filled Square Steel Tube Column Under Constant Axial Load. Journal of Constructional Steel Research, 64 (12), 1505–1515. https://doi.org/10.1016/j.jcsr.2008.01.002
- Dai, X. H., & Lam, D. (2012). Shape Effect on the Behaviour of Axially Loaded Concrete Filled Steel Tubular Stub Columns at Elevated Temperature. Journal of Constructional Steel Research, 73, 117-127. https://doi.org/10.1016/j.jcsr.2012.02.002
- Ekmekyapar, T., & Alhatmey, I. A. H. (2019). Post-Fire Resistance of Internally Ring Stiffened High Performance Concrete Filled Steel Tube Columns. Engineering Structures, 183, 375-388. https://doi.org/10.1016/j.engstruct.2019.01.024
- Espinos, A., Romero, M. L., Serra, E., Hospitaler, A. (2015). Circular and Square Slender Concrete-Filled Tubular Columns Under Large Eccentricities and Fire. Journal of Constructional Steel Research, 110, 90-100. https://doi.org/10.1016/j.jcsr.2015.03.011
- Espinos, A., Romero, M. L., & Hospitaler, A. (2012). Simple Calculation Model for Evaluating the Fire Resistance of Unreinforced Concrete Filled Tubular Columns. Engineering Structures, 42, 231-244. https://doi.org/10.1016/j.engstruct.2012.04.022
Details
Primary Language
Turkish
Subjects
Civil Engineering
Journal Section
Review
Publication Date
March 15, 2023
Submission Date
October 3, 2022
Acceptance Date
January 23, 2023
Published in Issue
Year 1970 Volume: 26 Number: 1
APA
Özelmacı Durmaz, Ö. Ç., İpek, S., Nassani, D. E., & Güneyisi, E. M. (2023). Beton dolgulu çelik tüp kolonların yangın performansının araştırılması. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi, 26(1), 289-294. https://doi.org/10.17780/ksujes.1183702