Prediction of Local Buckling and Rotation Capacity at Maximum Moment

摘要

An approach which allows for the prediction of the initiation of local buckling in the design of W-shaped beams under steep moment gradient, is presented in this paper. The method described represents a refined moment-rotation model that includes the effects of strain hardening. This same approach helps define more accurately the slenderness limits of the plate elements in relation to the required rotation capacity, at maximum moment.