BOND SPLITTING STRENGTH OF LAP SPLICE OF CONCRETE BEAMS USING REINFORCING BAR AND METAL GRID

Abstract

This report verified the bond splitting strength of lap splice of concrete beams using reinforcing bar and metal grid. Cyclic loading test was carried out on 5 specimens in which all reinforcement were spliced at the same section. The variables of specimens of metal grid were four kinds of different types of thickness and shapes, such as expanded metal grid and square metal grid. Measurements were the maximum crack width and ultimate cracking pattern and failure mode of splices. From this investigation, it became clear that the bond splitting strength of concrete beams using metal grid fell compared using reinforcing bar.