Assessment of welded splices in beam, column and slab

Abstract

In this study, the performance of welded splices in RCC member is judged with respect to lapped splices having straight bars. The objective of this experiment is to find out a safe weld length for welded splices which can be used in beam, column and slab. For that, 12 mm, 16 mm and 20 mm (fy = 500 MPa and weldable) rebars were used, having an electrode of E60Ksi. Selected bars were welded together with different welding lengths ranging between 25 to 150 mm and conducted tension and bending tests on them. It was found that 100 mm welding was adequate for all bars. So, this length was considered the safe weld length for welded splices. Specimens of beam, column and slab were prepared and tested with welded splices and straight bars. The effects of load on beam, column and slab for both types of bars were observed and found almost same when 100mm welded splices are used.