Analysis of Applicability of Upset Welded Ribbed Steel Bars for Concrete Reinforcement

Abstract

Different establishments distinguished by function, structure, material usage or mobility are used in military industry. Constructions reinforced by steel bars are examined in this paper which are installed in the structure of bridges, halls or buildings. Because the length of the reinforcement steel is limited by the production technology – especially at the bigger diameters – and for economic reasons, extension of the bars is necessary in many cases which is regulated by European standards. Transversal tensile tests of reinforcement steel bars joint by upset welding were carried out in order to determine the accurate attributions of this joint type. The resistance against uniaxial tension of the welded bars were approximately 80% of the raw material and the load capacity of a bended structure is affected in a similar manner. Results of traditional metallurgical tests meet the requirements of the relevant standards, so this technology is applicable with prudent consideration of the risk factors.