This paper presents test results of bending and weld joint of the HSA800. HSA800 for the high performance steel has a minimum 800MPa tensile strength. HSA800 can effectively reduce the size and thickness of structural member for high-rise building. Bending test and weld joint test of HSA800 are conducted to verify fabrication and performance of steel pile. Test results show that HSA800 is appropriate to make a heavy wall steel pipe. The fracture is occurred at the base metal of weld joint which can exhibit strength higher than its base metal.

• 김진원((재)포항산업과학연구원 초고층빌딩연구팀, 공학박사) | Kim, Jin Won Corresponding Author
• 유홍식((재)포항산업과학연구원 건축건자재연구본부, 공학박사) | Ryu, Hong Sik
• 이승은((재)포항산업과학연구원 초고층빌딩연구팀, 공학박사) | Lee, Seung Eun
• 김진호((재)포항산업과학연구원 건축건자재연구본부, 공학박사) | Kim, Jin Ho