USE OF MECHANICAL SPLICES FOR REINFORCING STEEL

Lap splicing requires the overlapping of two parallel bars. The overlap load transfer mechanism takes advantage of the bond between the steel and the concrete to transfer the load. The load in one bar is transferred to the concrete,and then from the concrete to the ongoing bar. The bond is largely influenced by deformations (ribs) on the surface of the reinforcing bar. Lap splices,then,can be considered structurally less reliable and design - constrictive,with many �hidden� costs. As a result,usage o f mechanical splices previously considered cost - prohibitive is on the rise. Also mechanical splice (Couplers) offer added benefits. The coupler splices are more reliable than lap splices because they do not depend on concrete for load transfer. Superior cyclic performance and greater structural integrity during man made,seismic or other natural events are other advantages of mechanical butt splices. Mechanical splicing does away with the tedious calculations needed to determine proper lap lengths,and their potential errors. Because mechanical splices do not overlap,less rebar is used,reducing materials costs. This paper verifies the strength of different couplers and also an economic viability study. Different types of samples were tested under UTM and the reports are studied to calculate the economic cost comparison of the same https://www.ijiert.org/paper-details?paper_id=14076