Email this article Composite concrete beam with multi-web cold-formed steel section
DOI: https://doi.org/10.20528/cjcrl.2019.02.001
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Lately, structural engineers use cold-formed steel sections (CFS) in buildings due to its light-weight and easy shaping. Encasing the cold-formed steel sections by concrete avoiding the structure elements some of its disadvantages especially buckling. This paper reports an experimental test program for beams with a multi-web cold-formed steel section encased by reinforced concrete. Eleven (full-scale) specimens have tested under mid-span concentrated load, the experimental test program designed to cover many cold-formed steel section variables such as (web number, web height, and the steel section length). Comparison between the experimental results for specimens with encased steel cold-formed section and that for reference beam have presented. The experimental results show that the cold-formed steel webs number has a noticeable influence on the structural behaviour of the beam, such as increasing the beam load capacity. The beam load capacity, failure mode and the beam ductility have analysed, and some preparatory criteria for a sufficient outline have presented.
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Ammar A, Saad N, Wael S (2012). Strength and ductility of concrete encased composite beams. Engineering and Technology Journal, 30, 2701-2714.
Bedair O (2015). Design expression for web shear buckling of box sections by accounting for flange restraints. Journal of Constructional Steel Research, 110, 163–169.
CEN, Eurocode 3 (2005). Design of Steel Structures, Part1-3: General Rules — Supplementary Rules for Cold-formed Steel Members and Sheeting. European Committee for Standardization, Brussels.
Gilbert BP, Savoyat TJM, Teh LH (2012b). Self-shape optimisation application: optimisation of cold-formed steel columns. Thin-Walled Structures, 60, 173–184.
Gilbert BP, Teh LH, Guan H (2012a). Self-shape optimization principles: optimization of section capacity for thin-walled profiles. Thin-Walled Structures, 60, 194–204.
Hancock GJ (2007). Design of Cold-formed Steel Structures, 4th Edition. Australian Steel Institute, North Sydney, Australia.
Lanc D, Vo TP, Turkalj G, Lee J (2015). Buckling analysis of thin-walled functionally graded sandwich box beams. Thin-Walled Structures, 86, 148-156.
Leng J, Guest JK, Schafer BW (2011). Shape optimization of cold-formed steel columns. Thin-Walled Structures, 49, 1492–1503.
Liu H, Igusa T, Schafer B (2004). Knowledge-based global optimisation of cold-formed steel columns. Thin-Walled Structures, 42, 785–801.
Ma W, Becque J, Hajirasouliha I, Ye J (2015). Cross-sectional optimization of cold-formed steel channels to Eurocode 3. Engineering Structures, 101, 641 - 651. ISSN 0141-0296
Madeira JFA, Dias J, Silvestre N (2015). Multi-objective optimisation of cold-formed steel columns. Thin-Walled Structures, 96, 29–38.
Moharrami M, Louhghalam A, Tootkaboni M (2014). Optimal folding of cold-formed steel cross sections under compression. Thin-Walled Structures, 76, 145–156.
Pham SH, Pham CH, Hancock GJ (2014). Direct strength method of design for shear including sections with longitudinal web stiffeners. Thin-Walled Structures, 81, 19-28.
SFIA (2012), Technical Guide for Cold-Formed Steel Framing Products. Steel Framing Industry Association, United States of America.
Wang B, Bosco GL, Gilbert BP, Guan H, Teh LH (2016). Unconstrained shape optimisation of singly-symmetric and open cold-formed steel beams and beam columns. Thin-Walled Structures, 104 54–61.
Ye J, Hajirasouliha I, Becque J, Pilakoutas K, (2016). Development of more efficient cold-formed steel channel sections in bending. Thin-Walled Structures, 101, 1-13.
Yu WW (2010). Cold-Formed Steel Design, 4th Edition. Wiley, Hoboken, United States of America, NJ.
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