Torsional Resistance of High Strength Concrete Filled Steel Tube Beams Stiffened Internally with Steel Bars
Article Sidebar
Main Article Content
Abstract
The torsional behavior of twelve concrete-filled steel tube (CFST) specimens was experimentally investigated. CFST specimens were reinforced by internal cross-rods with different spacing (0, 50, 100, 150, 200, and 250) mm, different thicknesses of the steel tube (1.5 and 2) mm, and a compressive strength of 65 MPa (high strength concrete). Each sample was tested, and the results were examined. According to the results, the infill concrete prevented buckling failure in CFST specimens. The steel tube and concrete worked together since cutting steel tubes caused diagonal cracks in the infill concrete of CFST specimens. The results also showed that the CFST's torsional moment capacity increased due to the concrete infill, further aiding the steel tubes' performance. Internal stiffening in the steel tubes and concrete infill improved the failure mode, mechanical properties, and CFST specimens’ behavior under torsion.
Metrics
Article Details
This work is licensed under a Creative Commons Attribution 4.0 International License.
THIS IS AN OPEN ACCESS ARTICLE UNDER THE CC BY LICENSE http://creativecommons.org/licenses/by/4.0/
Plaudit
References
Russell HG, Anderson AR, Banning JO, Cantor IG, Carrasquillo RL, Cook JE, Frantz GC, Hester WT, Saucier KL, Aitcin PC. State-of-the-Art Report on high-Strength Concrete. ACI Committee 1997; 363: 92, (1-55).
Ali HA, Salman WD. Behavior of Hybrid CRRP-Concrete-Steel Double Skin Tubular Column under Axial Load. Diyala Journal of Engineering Sciences 2020; 13(1): 106–117. DOI: https://doi.org/10.24237/djes.2020.13112
Hussien TA, Salman WD. Experimental Investigation on RC Columns Confined by Jacket with Geopolymer Adhesive. Diyala Journal of Engineering Sciences 2022; 15(2): 103–113. DOI: https://doi.org/10.24237/djes.2022.15210
Naser AF. Evaluating The Connection Areas Between Bricks Walls and Concrete Columns in Confined Masonry Buildings in Iraq. Diyala Journal of Engineering Sciences 2017; 10(2): 12–26. DOI: https://doi.org/10.24237/djes.2017.10202
Salman WD, Salman SM. Fibrous Geopolymer Adhesive Jackets for Confining of Reinforced Concrete Columns. Diyala Journal of Engineering Sciences 2021; 14(3): 119–130. DOI: https://doi.org/10.24237/djes.2021.14310
Cai SH. Modern Steel Tube Confined Concrete Structures. Beijing: China Communications Press 2003; 12(3): 121-136.
Han LH. Concrete Filled Steel Tubular Structures-Theory and Practice. Journal of Fuzhou University 2016; 2001(6): 34.
Han LH, Yang YF. Modern Technology of Concrete-Filled Steel Tubular Structures. 2nd ed., Beijing: China Architecture & Building Press; 2007.
Han LH, Tao Z, Wang WD. Advanced Composite and Mixed Structures—Testing, Theory and Design Approach. Beijing, China: Science Press 2009.
Tao Z, Yu Q. New Types of Composite Columns—Experiments, Theory and Methodology. Beijing: Science Press; 2006.
Zhong ST. The Unified Theory of Concrete-Filled Steel Tubular Structures: Research and Application. Tsinghua University Press 2006.
50205-2001 GB. Code for Acceptance of Construction Quality of Steel Structures. 2001.
700-2006 G. Carbon Structural Steels. 2006.
GB/T 1591–2008. High Strength Low Alloy Structural Steels. Standard Press of China 2008.
GB 50017–2003. Code for Design of Steel Structures. Beijing. Standard Press of China 2003.
DBJ/T13-51-2010. Technical Specifications for Concrete-Filled Steel Tubular Structures (Revised Version). Fuzhou, China: The Housing and Urban–Rural Development Department of Fujian Province 2010.
Standard C. GB50010-2010 Code for Design of Concrete Structures. 2010.
Han L-H, Yao G-H, Zhao X-L. Tests and Calculations for Hollow Structural Steel (HSS) Stub Columns Filled with Self-Consolidating Concrete (SCC). Journal of Constructional Steel Research 2005; 61(9): 1241–1269. DOI: https://doi.org/10.1016/j.jcsr.2005.01.004
Han LH, Yao GH, Tao Z. Performance of Concrete-Filled Thin-Walled Steel Tubes under Pure Torsion. Thin-Walled Structures 2007; 45(1): 24–36. DOI: https://doi.org/10.1016/j.tws.2007.01.008
Perea T, Leon RT, Hajjar JF, Denavit MD. Full-Scale Tests of Slender Concrete-Filled Tubes: Axial Behavior. Journal of Structural Engineering 2013; 139(7): 1249–1262. DOI: https://doi.org/10.1061/(ASCE)ST.1943-541X.0000784
Han LH, He SH, Zheng LQ, Tao Z. Curved Concrete Filled Steel Tubular (CCFST) Built-Up Members under Axial Compression: Experiments. Journal of Constructional Steel Research 2012; 74: 63–75. DOI: https://doi.org/10.1016/j.jcsr.2012.02.008
Uy B. Static Long-Term Effects in Short Concrete-Filled Steel Box Columns under Sustained Loading. Structural Journal 2001; 98(1): 96–104. DOI: https://doi.org/10.14359/10151
Han LH, Tao Z, Liu W. Effects of Sustained Load on Concrete-Filled Hollow Structural Steel Columns. Journal of Structural Engineering 2004; 130(9): 1392–1404. DOI: https://doi.org/10.1061/(ASCE)0733-9445(2004)130:9(1392)
Han LH, Yang YF, Li YJ, Feng B. Hydration Heat and Shrinkage of HSS Columns Filled with Self-Consolidating Concrete. Fourth International Conference on Advances in Steel Structures 2005; Shanghai, China: p. 647–652. DOI: https://doi.org/10.1016/B978-008044637-0/50094-9
Ibraheem OF, Mukhlif OA. Behavior of Reinforced Concrete Plates under Pure Torsion. Tikrit Journal of Engineering Sciences 2021; 28(1): 84–97. DOI: https://doi.org/10.25130/tjes.28.1.09
Abdullah AI, Lateef AM. Novel Torsional Reinforcement of Concrete Beams Utilizing Cross-Rod Steel Reinforcement. Tikrit Journal of Engineering Sciences 2023; 30(3): 49–58. DOI: https://doi.org/10.25130/tjes.30.3.6
Abdulrahman MB, Jomaa’h MM, Alsubari B, Abdulaali HS, Alqawzai S. Torsional Behavior of RC Beams with Transverse Openings Strengthened by Near Surface Mounted-Steel Wire Rope Subjected to Repeated Loading: Torsional Behavior. Tikrit Journal of Engineering Sciences 2022; 29(4): 79–89. DOI: https://doi.org/10.25130/tjes.29.4.9