ABSTRACT
ABSTRACT: A method for calculating stress in longitudinal weld of rectangular box columns under buckling limit state is proposed. Shear stress of longitudinal weld at overall buckling state is given based on the column buckling theory and extra fiber yield criterion. Normal stress at local buckling state is calculated by assuming panels which consisting the cross-section are clamped at edges. A method to check combined stresses of the weld is put forward. The Calculation method is conservative for design.
