ON STABILITY OF I-SECTION STEEL BEAM CANTILEVERS
工字型截面悬臂钢梁的稳定性研究

A given length thin-wall member,under axial or lateral loads below its material limit strength, may under go elastic flexural and torsional buckling.An analysis is carried out for the I-section cantilever steel beam in this paper.Equilibrium method and energy method are used to obtain the differential equation of the elastic flexural and torsional buckling under the axial pressures and transverse loads,and Ritz method is used to solve the derived differential equation and obtain critical values and the limit characteristics of the fixed beam section.