THE BEHAVIOR OF THE WELDING CONNECTION MODELS BETWEEN REINFORCING STEEL AND STEEL PLATE

Abstract

The welding connection between reinforcing steel and steel plates are widely used as part of a
building structure system, including the precast concrete connection system. This experimental study aimed to
investigate the behavior of the tee joint welding between reinforcing steel and steel plates, using both the yield
(YS) and tensile (TS) strengths as indicators. It was also directed towards understanding the strain hardening
value (TS/YS), which is the ratio between these factors. The experiment was conducted by testing three types
of welding connections, WC-1, WC-2, and WC-3, under tensile loads. The WC-1 and WC-2 are common
models mostly used to join steel components in reinforced concrete structures, while WC-3 was the proposed
connection model. The results showed TS/YS ratios of WC-1, WC-2, and WC-3 specimens were 1.19, 1.23,
and 1.27, respectively. This means the value of the proposed specimen is higher than the required 1.25 by the
ASTM A706M and was also recorded to have the best tensile strength.