Ultimate behaviors such as ultimate strength and fracture mechanism of fillet-welded connections with TIG(tungsten inert gas) welding have been investigated through test results. Main variables of specimens are weld length and welding direction against loading and ultimate strengths were compared according to the variables. Ultimate strengths were compared with current design predictions and modified design equations were proposed to consider the strength difference according to welding direction.

• 이후창(한밭대 건축공학과 석사과정) | Lee, Hoo Chang
• 황보경(한밭대 건축공학과 석사과정) | Hwang, Bo Kyung
• 김태수(한밭대 건축공학과 부교수, 공학박사) | Kim, Tae-Soo