Preflex (PF) composite girder is one that the prestressed force are readily applied to the steel beam and concrete is then cast to the steel beam, so that the elastic force of steel girder introduces prestressing effect to the steel-concrete composite girder. The major advantage of PF composite girders is to reduce the height of section. This study proposes a new Represtressed Preflex Composite Girder(RPF) composite girder that minimizes the amount of steel beam utilizing a temporary steel beam. The proposed RPF girder introduces the preflex effect to the full composite action between main steel beam and temporary beam. As a part of this study, finite element model has been developed and parametric studies are conducted to further investigate the characteristics of the proposed girder.

• 정원석(경희대학교 사회기반시스템공학과 교수) | Chung, Won Seok Corresponding Author
• 이우성(경희대학교 사회기반시스템공학과 석사과정) | Lee, Woo Sung
• 최권영(경희대학교 사회기반시스템공학과 석사과정) | Choi, Kwon Young
• 이희영(경희대학교 사회기반시스템공학과 석사과정) | Lee, Hee Young