Instability of Horizontally Curved Members. Flange Buckling Studies

摘要

An analytical study of the buckling behavior of the flanges of horizontally curved plate girders is presented. Buckling in both the elastic and inelastic range is considered. The influence of residual stresses resulting from the fabrication process are included. The mathematical model is developed using orthotropic plate theory and solved by means of first order finite differences. The influence of the various parameters which affect the buckling stress is illustrated. Design recommendations for the flange dimensions (width to thickness ratio) required to prevent local buckling are also given. (Author)