Local and distortional buckling of cold-formed lipped-channel column with V-stiffened web under axial compression force are investigated in this paper, the paper includes the fallowing main contents: (1)Elastic local buckling critical stress is predicted by eigenvalue buckling analysis of ANSYS, including interaction of the connected element.

As one of the strength-governing modes for cold-formed channel columns,distortional buckling is receiving more attentions.

Based on the experimental study on the cold-formed steel unlipped channels under concentrated bearing load, the feasibility about Perry formula applied in cold-formed steel structures is analyzed.

For flexural cold-formed thin-walled lipped channels,there are three fundamental buckling modes,which are plate local,section distortional and member flexural-torsional.

This paper presents a set of simple formulae for the elastic distortional buckling loads of cold-formed lipped channels subjected to eccentric compression or pure bending.

Based on this point, the direct strength method for calculating the ultimate load-carrying capacity about the minor axis of pin-ended lipped channels under eccentric compressive axial load acted in the plane of major axis is proposed.