Abstract
Recently, studies have been actively conducted for increasing the length of bridges by connecting steel composite and concrete girders. This study proposes a prestressed steel composite concrete girder and analyzes the composite behavior of the proposed steel composite concrete girder joint. The full-size specimen 3000 × 1000 × 1200 mm was fabricated. In the construction stage experiment, the strains of the top flange, vertical steel plate, and web were measured by applying prestressing; moreover, the allowable stress of the connection between the concrete and steel composite girder was analyzed via the finite element analysis. The stress in the connection between the steel girder and concrete girder was found to be within allowable stress at all construction stages. Finite element analysis revealed that the joint of the proposed girder exhibited appropriate structural behavior.
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