The ultimate flexural behavior of composite shell structure stiffened by steel pipe is investigated experimentally in this paper. Total 4 kinds of experimental specimens are constructed according to the size of steel pipe and diameter of GFRP septic tank. The load-displacement curves of the test are provided. xial and hoop stress of GFRP septic tank and flexural stress of steel pipe are obtained. The experiment results are useful for the verification of three-dimensional numerical analysis.

• 김인규(학생회원,충북대학교 토목공학부, 석사과정) | Kim, In gyu
• 임승현(충북대학교 토목공학과, 석사과정) | Lim, Seung Hyun
• 김성보(정회원, 충북대학교 토목공학과, 정교수,공학박사) | Kim, Sung Bo