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http://dx.doi.org/10.12989/scs.2022.45.6.895

Investigation on structural behaviour of composite cold-formed steel and reinforced concrete flooring systems  

Omar A., Shamayleh (School of Civil and Environmental Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney (UTS))
Harry, Far (School of Civil and Environmental Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney (UTS))
Publication Information
Steel and Composite Structures / v.45, no.6, 2022 , pp. 895-905 More about this Journal
Abstract
Composite flooring systems consisting of cold-formed steel joists and reinforced concrete slabs offer an efficient, lightweight solution. However, utilisation of composite action to achieve enhanced strength and economical design has been limited. In this study, finite element modelling was utilised to create a three-dimensional model which was then validated against experimental results for a composite flooring system consisting of cold-formed steel joists, reinforced concrete slab and steel bolt shear connectors. This validated numerical model was then utilised to perform parametric studies on the performance of the structural system. The results from the parametric study demonstrate that increased thickness of the concrete slab and increased thickness of the cold formed steel beam resulted in higher moment capacity and stiffness of the composite flooring system. In addition, reducing the spacing of bolts and spacing of the cold formed steel beams both resulted in enhanced load capacity of the composite system. Increasing the concrete grade was also found to increase the moment capacity of the composite flooring system. Overall, the results show that an efficient, lightweight composite flooring system can be achieved and optimised by selecting suitable concrete slab thickness, cold formed beam thickness, bolt spacing, cold formed beam spacing and concrete grade.
Keywords
cold-formed steel beams; composite action; flexural behaviour; composite cold-formed steel and reinforced concrete; flooring systems; composite floors; finite element method;
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1 Bamaga, S.O., Tahir, M.M., Tan, C.S., Shek, P.N. and Aghlara, R. (2019), "Push-out tests on three innovative shear connectors for composite cold-formed steel concrete beams", Construct. Build. Mater., 223, 288-298.   DOI
2 Bamaga, S.O., Tahir, M.M., Tan, T.C., Mohammad, S., Yahya, N., Saleh, A.L. and Rahman, A.B.A. (2013), "Feasibility of developing composite action between concrete and cold-formed steel beam", J. Central South Univ., 20(12), 3689-3696.   DOI
3 BSI (2005), BS EN 1994-1-1:2004 Eurocode 4. Design of Composite Steel and Concrete Structures. General Rules and Rules for Buildings, British Standards Institute,, London.
4 Far, H. (2020), "Flexural behavior of cold-formed steel-timber composite flooring systems", J. Struct. Eng., 146(5).
5 Framecad (2018), US NAVY EXPLORES COLD FORMED STEEL FRAMIN, 05/11/2018, viewed 22/10/2020, .
6 Grand View Research (2021), Light Gauge Steel Framing Market Size, Share & Trends Analysis Report by Type (Long Span, Wall Bearing, Skeleton), by End-use (Commercial, Residential), by Region (APAC, North America), and Segment Forecasts, 2021-2028, Grand View Research;, San Francisco, USA.
7 Hanaor, A. (2000), "Tests of composite beams with cold-formed sections", J. Construct. Steel Research - J. Const. Steel Res., 54, 245-264.   DOI
8 Hosseinpour, M., Zeynalian, M., Ataei, A. and Daei, M. (2021), "Push-out tests on bolted shear connectors in composite cold-formed steel beams", Thin-Wall. Struct., 164, 107831.   DOI
9 Irwan, J.M., Hanizah, A.H., Azmi, I. and Koh, H.B. (2011), "Large-scale test of symmetric cold-formed steel (CFS)-concrete composite beams with BTTST enhancement", J. Construct. Steel Res., 67(4), 720-726.   DOI
10 Abdel-Sayed, G. (1982), "Composite Cold-formed Steel-concrete Structural System", 6th International Specialty Conference on Cold-Formed Steel Structures.
11 Ahmed, I.M. and Tsavdaridis, K.D. (2019), "The evolution of composite flooring systems: applications, testing, modelling and eurocode design approaches", J. Construct. Steel Research, 155, 286-300.   DOI
12 Alhajri, T.M., Tahir, M.M., Azimi, M., Mirza, J., Lawan, M.M., Alenezi, K.K. and Ragaee, M.B. (2016), "Behavior of pre-cast U-shaped composite beam integrating cold-formed steel with ferro-cement slab", Thin-Wall. Struct., 102, 18-29.   DOI
13 ANSYS Inc. (2021), ANSYS 2021 R2, ANSYS, Inc., Canonsburg, Pennsylvania.
14 Kyvelou, P., Gardner, L. and Nethercot, D.A. (2018), "Finite element modelling of composite cold-formed steel flooring systems", Eng. Struct., 158, 28-42.   DOI
15 Karki, D., Far, H. and Saleh, A. (2021), "Numerical studies into factors affecting structural behaviour of composite cold-formed steel and timber flooring systems", J. Build. Eng., 44, 102692.   DOI
16 Kyvelou, P. (2017), Structural Behaviour of Composite Cold-Formed Steel Systems, Imperial College London.
17 Kyvelou, P., Gardner, L. and Nethercot, D.A. (2017), "Testing and analysis of composite cold-formed steel and wood-based flooring systems", Amer. Soc. Civil Eng.,
18 Lakkavalli, B.S. and Liu, Y. (2006), "Experimental study of composite cold-formed steel C-section floor joists", J. Construct. Steel Res., 62(10), 995-1006.   DOI
19 Malite, M., Nimir, W.A., de Sales, J.J. and Goncalves, R.M. (1998), Cold-Formed Shear Connectors for Composite Constructions.
20 Mantha, A. (2014), Analytical Evaluation of Inorganic Polymer Material for Infrastructure Repair, The State University of New Jersey, New Brunswick, USA.
21 Nakamura, S.I. (2002), "Bending behavior of composite girders with cold formed steel U section", J. Struct. Eng., 128(9), 1169-1176.   DOI
22 Nath, P. and Sarker, P.K. (2015), "Use of OPC to improve setting and early strength properties of low calcium fly ash geopolymer concrete cured at room temperature", Cement Concrete Compos., 55, 205-214.   DOI
23 Nguyen, R.P. (1991), "Thin walled, cold formed steel composite beams", J. Struct. Eng., 117(10), 2936-2952.   DOI
24 Paton-Cole, V. and Gad, E. (2017), Understanding the Benefits of Constructing a Residential House with a Heart of Cold-Formed Steel.
25 Standards Australia (2018), AS 3600:2018 Concrete Structures.
26 Rasmussen, K.J., Khezri, M., Schafer, B.W. and Zhang, H. (2020), "The mechanics of built-up cold-formed steel members", Thin-Wall. Struct., 154, 106756.   DOI
27 Standards Australia (2017a), AS/NZS 2327:2017 Composite structures - Composite Steel-Concrete Construction in Buildings
28 Standards Australia (2017b), Composite Structures - Composite Steel-Concrete Construction in Buildings, Standards Australia, Sydney.
29 Wehbe, N., Wehbe, A., Dayton, L. and Sigl, A. (2011), "Development of concrete/cold formed steel composite flexural members", In Structures Congress 2011, 3099-3109.
30 Wills, R.J. (2015), "Cold-formed steel design standards", The Construction Specifier.
31 Wong, M.B. (2009), Chapter 2 - Plastic Behavior of Structures, Plastic Analysis and Design of Steel Structures, Butterworth-Heinemann, Boston, 55-80.
32 Yu, W.W., LaBoube, R.A. and Chen, H. (2019), Cold-Formed Steel Design. John Wiley & Sons.
33 Zhang, S. (2017), Vibration Serviceability of Cold-Formed Steel Floor Systems, University of Waterloo, Waterloo, Ontario, Canada.