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Elastic Shear Buckling of Curved Web Panels  

김재석 (동부엔지니어링 구조부)
김종헌 (고려대학교 공학기술연구)
강영종 (고려대학교 사회환경시스템공학)
한택희 (고려대학교 사회환경시스템공학과)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.17, no.2, 2004 , pp. 95-104 More about this Journal
Abstract
The horizontally curved bridges have been used to connect bridges and roads. Until 1960s, they had been constructed with straight girders, called 'kinked girder bridges', which requires much cost and time-consuming construction of substructure. In case of using curved girders, practiced later, they would have many advantages such as reduction in the total construction cost and time, and ability to make aesthetic bridges. In designing plate girder bridges, it is necessary to determine the spacings between vertical stiffeners and the allowable shear stresses based on shear buckling capacity because it plays a key role in preventing the premature local shear buckling. Compared with the straight web, the critical shear buckling stresses of curved web panels vary with both aspect ratio and curvature coefficient. For designing curved web panels, a simplified formula and shear buckling coefficients were proposed by parametric models with F.E.M in this study.
Keywords
curved plate; shear buckling; buckling strength; web;
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