Curved girders show very complex behavior compare to straight girders because the torsional moments always act on the structure even if there are no additional loads except self-weight. For this reason, engineers need to consider torsional behavior when design or analyse structure. However, most of curved bridges are designed as a series of straight girders because design specification does not reflect the curved beam theory. In this paper, curved girders are analysed by FEA program and the results are compared with the results of straight girders. Selecting the radius of curvature as a parameter, suitable analysis method for design of horizontally curved girder was suggested.

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• 강영종(고려대학교 건축사회환경공학부 교수, 공학박사) | Kang, Youngjong 교신저자