Abstract
The finite strip analysis was performed for flange local buckling of curved I-girders with warping stress as well as bending stress, using the total flange model supported simply along the flange-web connection.
It was shown that the correct buckling load cannot be obtained from the half flange model separated along flange-web connection, because of curvature and warping normal stress. The formulae were obtained for width-thickness ratio of curved girder flange, by a slight change of the current specification for straight girders of highway bridge. introducing the parameters considered the effect of warping normal stress.
