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Commenced in January 2007 Frequency: Monthly Edition: International Publications Count: 30569


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10011079
Assessment of Using Wastage Steel as Welded Reinforcement
Abstract:
This work is carried out to evaluate the possibility of using to-be-wasted steel as reinforcement after welding together pieces of reinforcing steel bars, left over during construction activities. Tests were performed on a total of nine samples. These were made by welding pieces of reinforcing steel bars purchased from the local scrap steel market. The samples were tested in uniaxial tension using a universal testing machine (UTM). It was found that the failure of the welded bars is governed by the thickness of the weld. It is concluded that suitable design of the weld is essential for achieving the desired level of ductility/elongation of these bars, if they are to be used as conventional reinforcement in reinforced concrete members.

References:

[1] Achillopoulou, D., Pardalakis, T. and Karabinis, A. (2013), “Investigation of Force Transfer Mechanisms in Retrofitted RC Columns with RC Jackets Containing Welded Bars Subjected to Axial Compression”, 4th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Kos Island, Greece, 12–14 June 2013
[2] Serna, M., Puente, I., Clemos, I. and Lopez, A. (2002), “Failure of Steel-Concrete Connection” at the Kursaal Auditorium, Spain: Department of Structural Engineering, University of Navarra. ASCCS-Kursaal-EN.
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[6] Jacek D., Jacek K., Mateusz Z (2016), “Mechanical Characteristics of Used Bent Rebar’s as A Factor Limiting Their Reuse”, The 9th International Concrete Conference at Dundee University, UK, July 2016.
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[8] Nikolaou, G.D.; Papadimitriou, M (2004), “Mechanical properties of lap welded reinforcing steel bars used for repairing damaged reinforced concrete structures”, Mater. Struct. 37, 698–706
[9] Ali, M. S., Rao, C. S. & Rao, D. N (2014), “Study the effect of shielded metal arc welding process parameters, cryo-treatment and preheating on welding characteristics and modelling by an artificial neural network”, Australian Journal of Mechanical Engineering, 12, 10, DOI: 7158/M12-046.2014.12.2
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[11] Wolfgang Scholz & Bruce Roberts (2000), “Welding newly developed, high strength, seismic grade reinforcing bars”, 12th WCEE, 1173.
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