溝形開断面梁のねじりと曲げが複合した座屈

抄録

The equation of the buckling load for the channel beam is derived when the torsional torque and the bending moment act simultaneously. The derived equation was compared with the computation results by the finite element method (FEM), and its validity was examined. The derived buckling equation for only the torsional torque were compared with the computation results by FEM for various dimensions of channel beams. As a result, the buckling torques derived in this report were consistent with the FEM results. However, the buckling torques were a much larger value than the torsional torques appeared in the actual structure.