A concrete-filled arch rib causes to increase effectively sectional strength and resistance against buckling, and minimize stiffeners. Since a reduced beam theory includes the effect of variable section properties, it is suitable to structural analysis of new composite girder such as SB-Arch girder. Analysis results are verified by experimental method, and arch behaviors and/or arching effects are shown to be increased for SB-arch girder with 20m span.

• 임성순(서울시립대학교 토목공학과) | Yhim, Sung Soon
• 김우진(서울시립대학교 토목공학과) | Kim, Woo Jin
• 원용석(혜동브릿지(주)) | Won, Yong Suk
• 손석호(수성엔지니어링 구조부) | Sohn, Suk Ho
• 이창욱(서울시립대학교 토목공학과) | Lee, Chang Wook