A Numerical Study addressing the Stress Distribution in Circular Steel Tube Confined Concrete Columns considering Various Concrete Strengths
Received: 19 December 2022 | Revised: 30 January 2023 | Accepted: 1 February 2023 | Online: 26 February 2023
Corresponding author: Hoang An Le
Abstract
The axially compressive behavior of Steel Tube Confined Concrete (STCC) columns has been experimentally investigated by many researchers throughout the world. However, it is extremely complicated to measure the stresses of steel tubes and concrete core in real tests. Therefore, to investigate the fundamental behavior of STCC columns under axial compression, this paper presents a numerical study that explores the stress distribution in steel tubes and concrete core. The circular STCC columns with the use of Normal Strength Concrete (NSC), High Strength Concrete (HSC), and Ultra-High Strength Concrete (UHSC) were simulated in a Finite Element Model (FEM) in ABAQUS. The material model for confined concrete incorporating a wide range of concrete strength values was developed in the simulation. The obtained from FEM curves of load versus strain of circular STCC columns were compared with those measured in real tests to verify the accurateness of the FEM. Deriving from the results of FEM, the stress states and their distribution in outer steel tubes and concrete core along the column height were described. Also, the longitudinal stresses on the cross-section of the concrete core were calculated corresponding with the load stage to quantify the strength enhancement of the concrete core due to the confinement effect from the steel tube. Furthermore, the confining pressure provided by the outer steel tube and impacting on the concrete core was plotted. Based on the findings in this paper, the effect of various concrete strengths on the stress distribution in circular STCC columns was investigated.
Keywords:
NSC, HSC, UHSC, ABAQUS, FEM, steel tube confined concreteDownloads
References
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, Aug. 2002. DOI: https://doi.org/10.1061/(ASCE)0733-9445(2002)128:8(1073)
L.-H. Han, G.-H. Yao, Z.-B. Chen, and Q. Yu, "Experimental behaviours of steel tube confined concrete (STCC) columns," Steel and Composite Structures, An International Journal, vol. 5, no. 6, pp. 459–484, 2005. DOI: https://doi.org/10.12989/scs.2005.5.6.459
A. A. Fam, F. S. Qie, and S. Rizkalla, "Concrete-Filled Steel Tubes Subjected to Axial Compression and Lateral Cyclic Loads," Journal of Structural Engineering, vol. 130, no. 4, pp. 631–640, Apr. 2004. DOI: https://doi.org/10.1061/(ASCE)0733-9445(2004)130:4(631)
M. D. O’Shea and R. Q. Bridge, "Design of Circular Thin-Walled Concrete Filled Steel Tubes," Journal of Structural Engineering, vol. 126, no. 11, pp. 1295–1303, Nov. 2000. DOI: https://doi.org/10.1061/(ASCE)0733-9445(2000)126:11(1295)
M.-X. Xiong, D.-X. Xiong, and J. Y. R. Liew, "Axial performance of short concrete filled steel tubes with high- and ultra-high- strength materials," Engineering Structures, vol. 136, pp. 494–510, Apr. 2017. DOI: https://doi.org/10.1016/j.engstruct.2017.01.037
P. C. Nguyen, D. D. Pham, T. T. Tran, and T. Nghia-Nguyen, "Modified Numerical Modeling of Axially Loaded Concrete-Filled Steel Circular-Tube Columns," Engineering, Technology & Applied Science Research, vol. 11, no. 3, pp. 7094–7099, Jun. 2021. DOI: https://doi.org/10.48084/etasr.4157
A. N. Hassooni and S. R. A. Zaidee, "Behavior and Strength of Composite Columns under the Impact of Uniaxial Compression Loading," Engineering, Technology & Applied Science Research, vol. 12, no. 4, pp. 8843–8849, Aug. 2022. DOI: https://doi.org/10.48084/etasr.4753
Z. H. Abdulghafoor and H. A. Al-Baghdadi, "Static and Dynamic Behavior of Circularized Reinforced Concrete Columns Strengthened with Hybrid CFRP," Engineering, Technology & Applied Science Research, vol. 12, no. 5, pp. 9336–9341, Oct. 2022. DOI: https://doi.org/10.48084/etasr.5162
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, Jan. 2010. DOI: https://doi.org/10.1016/j.jcsr.2009.08.003
A. L. Hoang, E. Fehling, B. Lai, D.-K. Thai, and N. V. Chau, "Experimental study on structural performance of UHPC and UHPFRC columns confined with steel tube," Engineering Structures, vol. 187, pp. 457–477, May 2019. DOI: https://doi.org/10.1016/j.engstruct.2019.02.063
A. Le Hoang, E. Fehling, D.-K. Thai, and C. Van Nguyen, "Evaluation of axial strength in circular STCC columns using UHPC and UHPFRC," Journal of Constructional Steel Research, vol. 153, pp. 533–549, Feb. 2019. DOI: https://doi.org/10.1016/j.jcsr.2018.11.001
A. Le Hoang and E. Fehling, "Numerical study of circular steel tube confined concrete (STCC) stub columns," Journal of Constructional Steel Research, vol. 136, pp. 238–255, Sep. 2017. DOI: https://doi.org/10.1016/j.jcsr.2017.05.020
A. Haghinejada and M. Nematzadeh, "Three-Dimensional Finite Element Analysis of Compressive Behavior of Circular Steel Tube-Confined Concrete Stub Columns by New Confinement Relationships," Latin American Journal of Solids and Structures, vol. 13, pp. 916–944, May 2016. DOI: https://doi.org/10.1590/1679-78252631
P. K. Gupta and H. Singh, "Numerical study of confinement in short concrete filled steel tube columns," Latin American Journal of Solids and Structures, vol. 11, pp. 1445–1462, Dec. 2014. DOI: https://doi.org/10.1590/S1679-78252014000800010
J. Liu, X. Zhou, and D. Gan, "Effect of friction on axially loaded stub circular tubed columns," Advances in Structural Engineering, vol. 19, no. 3, pp. 546–559, Mar. 2016. DOI: https://doi.org/10.1177/1369433216630125
W. L. A. de Oliveira, S. De Nardin, A. L. H. de C. El Debs, and M. K. El Debs, "Evaluation of passive confinement in CFT columns," Journal of Constructional Steel Research, vol. 66, no. 4, pp. 487–495, Apr. 2010. DOI: https://doi.org/10.1016/j.jcsr.2009.11.004
H. Schneider, "Zum tragverhalten kurzer, umschnürter, kreisförmiger, druckglieder aus ungefasertem UHFB," Ph.D. dissertation, University of Leipzig, Leipzig, Germany, 2006.
L.-H. Han, G.-H. Yao, and Z. Tao, "Performance of concrete-filled thin-walled steel tubes under pure torsion," Thin-Walled Structures, vol. 45, no. 1, pp. 24–36, Jan. 2007. DOI: https://doi.org/10.1016/j.tws.2007.01.008
J. Wei, Z. Xie, W. Zhang, X. Luo, Y. Yang, and B. Chen, "Experimental study on circular steel tube-confined reinforced UHPC columns under axial loading," Engineering Structures, vol. 230, Mar. 2021, Art. no. 111599. DOI: https://doi.org/10.1016/j.engstruct.2020.111599
T. Yu, J. G. Teng, Y. L. Wong, and S. L. Dong, "Finite element modeling of confined concrete-I: Drucker–Prager type plasticity model," Engineering Structures, vol. 32, no. 3, pp. 665–679, Mar. 2010. DOI: https://doi.org/10.1016/j.engstruct.2009.11.014
V. K. Papanikolaou and A. J. Kappos, "Confinement-sensitive plasticity constitutive model for concrete in triaxial compression," International Journal of Solids and Structures, vol. 44, no. 21, pp. 7021–7048, Oct. 2007. DOI: https://doi.org/10.1016/j.ijsolstr.2007.03.022
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, Oct. 2013. DOI: https://doi.org/10.1016/j.jcsr.2013.07.001
A. K. Samani and M. M. Attard, "A stress–strain model for uniaxial and confined concrete under compression," Engineering Structures, vol. 41, pp. 335–349, Aug. 2012. DOI: https://doi.org/10.1016/j.engstruct.2012.03.027
M. A. Tasdemir, C. Tasdemir, S. Akyuz, A. D. Jefferson, F. D. Lydon, and B. I. G. Barr, "Evaluation of strains at peak stresses in concrete: A three-phase composite model approach," Cement and Concrete Composites, vol. 20, no. 4, pp. 301–318, Jan. 1998. DOI: https://doi.org/10.1016/S0958-9465(98)00012-2
Q. G. Xiao, J. G. Teng, and T. Yu, "Behavior and Modeling of Confined High-Strength Concrete," Journal of Composites for Construction, vol. 14, no. 3, pp. 249–259, Jun. 2010. DOI: https://doi.org/10.1061/(ASCE)CC.1943-5614.0000070
D.-D. Pham and P.-C. Nguyen, "Finite Element Modelling for Axially Loaded Concrete-Filled Steel Circular Tubes," in 5th International Conference on Geotechnics, Civil Engineering Works and Structures, Singapore, Singapore, 2020, pp. 75–80. DOI: https://doi.org/10.1007/978-981-15-0802-8_8
B. Binici, "An analytical model for stress–strain behavior of confined concrete," Engineering Structures, vol. 27, no. 7, pp. 1040–1051, Jun. 2005. DOI: https://doi.org/10.1016/j.engstruct.2005.03.002
Abaqus/Cae Users Manual. USA: Hibbitt, Karlsson & Sorensen Inc, 2000.
Downloads
How to Cite
License
Copyright (c) 2023 Hoang An Le
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain the copyright and grant the journal the right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) after its publication in ETASR with an acknowledgement of its initial publication in this journal.
