Recently, study on the application of sustainable materials to building and civil structure fields has been increased. Especially, the usage of aluminum alloys can improve durability of structures due to it’s high corrosion resistance. In this study, to investigate the ultimate behaviors such as ultimate strength and fracture mode of single shear bolted connections with aluminum alloys (7075-T6), experiments were conducted. Main variables are bolt arrangement and end distance parallel to the direction of load. As a result, the specimens failed by shear out fracture and block shear fracture and also the specimens with long end distance were accompanied by curling (out of plane deformation). The curling led to reduction of ultimate strength or rigidity. Futhermore, pattern of strain distribution was investigated according to curling occurrence.

• 조용현(한밭대 일반대학원 석사과정) | Cho, Yong-Hyun
• 김태수(한밭대 건축공학과 부교수, 공학박사) | Kim, Tae-Soo Corresponding Author