Compressive strength and behavior analysis of full-scale concrete filled steel tubular columns
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Author
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Hao Dinh PhanThe University of Danang - University of Science and Technology, VietnamVe Van ThiThe University of Danang - University of Science and Technology, VietnamTuan Cao LeThe University of Danang - University of Science and Technology, VietnamLuan Hung TranThe University of Danang - University of Science and Technology, Vietnam
Từ khóa:
Tóm tắt
This paper investigates the compressive behavior of full-scale concrete filled steel tubular (CFST) columns with varying heights, loading conditions, and constituent material strengths. A numerical study was conducted on eighteen CFST specimens with steel yield strengths (fy) ranging from 620 to 690 MPa and concrete compressive strengths (fc’) ranging from 80 to 100 MPa. Two concentric loading types were applied: over the entire cross-section (CFE) and on the concrete core only (CFC). Results indicate that both loading type and material strength significantly affect column performance. CFC-loaded columns achieved higher compressive strength but lower deformation capacity compared to those under CFE loading, due to variations in the confinement effect provided by the steel tube. Increasing fy and fc’ enhanced overall column’s compressive strength, while higher fc’ led to greater concrete core damage. The AS/NZS 2327: 2017 design standard provides conservative yet reliable strength predictions for CFST columns constructed with high strength materials.
Tài liệu tham khảo
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[1] K. Susantha, H. Ge, and T. Usami, “Uniaxial stress–strain relationship of concrete confined by various shaped steel tubes”, Engineering Structures, vol. 23, no. 10, pp. 1331-1347, 2001. https://doi.org/10.1016/S0141-0296(01)00020-7
[2] M. Johansson and K. Gylltoft, “Mechanical behavior of circular steel concrete composite stub columns”, Journal of Structural Engineering, vol. 128, no. 8, pp. 1073-1081, 2002. https://doi.org/10.1061/(ASCE)0733-9445(2002)128:8(1073)
[3] J. Liu and X. Zhou, “Behavior and strength of tubed RC stub columns under axial compression”, Journal of Constructional Steel Research, vol. 66, no. 1, pp. 28-36, 2010. https://doi.org/10.1016/j.jcsr.2009.08.006
[4] T. Fujimoto, A. Mukai, I. Nishiyama, and K. Sakino, “Behavior of eccentrically loaded concrete-filled steel tubular columns”, Journal of Structural Engineering, vol. 130, no. 2, pp. 203-212, 2004. https://doi.org/10.1061/(ASCE)0733-9445(2004)130:2(203)
[5] L.-H. Han, “Flexural behaviour of concrete-filled steel tubes”, Journal of Constructional Steel Research, vol. 60, no. 2, pp. 313-337, 2004. https://doi.org/10.1016/j.jcsr.2003.08.009
[6] Z.-W. Yu, F.-X. Ding, and C. Cai, “Experimental behavior of circular concrete-filled steel tube stub columns”, Journal of Constructional Steel Research, vol. 63, no. 2, pp. 165-174, 2007. https://doi.org/10.1016/j.jcsr.2006.03.009
[7] L.-H. Han, W. Liu, and Y.-F. Yang, “Behaviour of concrete-filled steel tubular stub columns subjected to axially local compression”, Journal of Constructional Steel Research, vol. 64, no. 4, pp. 377-387, 2008. https://doi.org/10.1016/j.jcsr.2007.10.002
[8] H. D. Phan and K.-C. Lin, “Seismic behavior of full-scale square concrete filled steel tubular columns under high and varied axial compressions”, Earthquakes and Structures, vol. 18, no. 6, pp. 677-689, 2020. https://doi.org/10.12989/eas.2020.18.6.677
[9] Q. Yu, Z. Tao, W. Liu, and Z.-B. Chen, “Analysis and calculations of steel tube confined concrete (STCC) stub columns”, Journal of Constructional Steel Research, vol. 66, no. 1, pp. 53-64, 2010. https://doi.org/10.1016/j.jcsr.2009.08.003
[10] Z. Tao, Z.-B. Wang, and Q. Yu, “Finite element modelling of concrete-filled steel stub columns under axial compression”, Journal of Constructional Steel Research, vol. 89, pp. 121-131, 2013. https://doi.org/10.1016/j.jcsr.2013.07.001
[11] H.-T. Thai, B. Uy, M. Khan, Z. Tao, and F. Mashiri, “Numerical modelling of concrete-filled steel box columns incorporating high strength materials”, Journal of Constructional Steel Research, vol. 102, pp. 256-265, 2014. https://doi.org/10.1016/j.jcsr.2014.07.014
[12] H. D. Phan and H. H. Trinh, “Analysis of mechanical behaviour of circular concrete filled steel tube columns using high strength concrete”, in Mechanics of Structures and Materials XXIV: CRC Press, 2019, pp. 260-265.
[13] H.-T. Hu, C.-S. Huang, M.-H. Wu, and Y.-M. Wu, “Nonlinear analysis of axially loaded concrete-filled tube columns with confinement effect”, Journal of Structural Engineering, vol. 129, no. 10, pp. 1322-1329, 2003. https://doi.org/10.1061/(ASCE)0733-9445(2003)129:10(1322)
[14] H. D. Phan, “Numerical analysis of seismic behavior of square concrete filled steel tubular columns”, Journal of Science and Technology in Civil Engineering (JSTCE)-HUCE, vol. 15, no. 2, pp. 127-140, 2021. https://doi.org/10.31814/stce.nuce2021-15(2)-11
[15] S. Thai, N. H. Cuong, and D. V. Thuat, “Finite element modelling of rectangular concrete-filled steel tube stube columns incorporating high strength and ultra-high strength materials under concentric axial compression”, Journal of Science and Technology in Civil Engineering - HUCE (NUCE), vol. 15, no. 4, pp. 74-87, 2021.
[16] H. D. Phan, K.-C. Lin, and H. T. Phan, “Numerical Simulation of Full-Scale Square Concrete Filled Steel Tubular (CFST) Columns Under Seismic Loading”, in Modern Mechanics and Applications: Select Proceedings of ICOMMA 2020: Springer, 2021, pp. 875-889. https://doi.org/10.1007/978-981-16-3239-6_68
[17] H. D. Phan and K.-C. Lin, “Seismic Performance of Concrete Filled Steel Tubular (CFST) Columns with Variously Axial Compressive Loads”, in Modern Mechanics and Applications: Select Proceedings of ICOMMA 2020: Springer, 2021, pp. 915-925. https://doi.org/10.1007/978-981-16-3239-6_71
[18] H. D. Phan and L. K. T. Dao, “Numerical analysis of compressive behavior of circular concrete filled steel tubular columns with high to ultra-high strength materials”, Journal of Science and Technology in Civil Engineering (JSTCE)-HUCE, vol. 17, no. 2, pp. 83-98, 2023. https://doi.org/10.31814/stce.huce2023-17(2)-08
[19] H. D. Phan and T. C. Le, “Mechanical behavior of concrete filled steel tubular columns with high strength materials subjected to various compression loading scenarios”, Journal of Science and Technology in Civil Engineering (JSTCE)-HUCE, vol. 19, no. 1, pp. 93-107, 2025. https://doi.org/10.31814/stce.huce2025-19(1)-08
[20] Composite structures – Composite steel-concrete construction in buildings. Standards Australia/Standards New Zealand, Sydney/Wellington, Australia/New Zealand, AS/NZS 2327: 2017.
[21] SIMULIA, “Abaqus Analysis User's and Abaqus/CAE User's Guides”, 2016.

