ウェブの変形を伴うI型断面材の弾性曲げねじれ座屈

概要

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An approximate analysis is presented of the effect of web distortion on the elastic flexural-torsional buckling of structural members with I-sections. By setting up the appropriate kinematic fields which account for large displacement of I-section members with flexible webs, due to flexure and torsion, a system of differential equations governing the problem is derived. The effects of web distortion on the elastic lateral buckling of simply supported beams with doubly symmetric I-section in uniform bending about their major axis, are numerically demonstrated in comparison with the classical buckling moments obtained for beams with rigid cross sections. In the calculation, the effect of initial residual stresses is included.
山梨大学の論文