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用加权残数中的配点法分析了焊接工字形截面偏压柱的弹塑性弯扭屈曲问题,计算中考虑了残余应力.在此基础上分析建立了所采用连接的面内弯矩-转角关系理论模式,对半刚性连接性能及面内转动约束对偏压柱弯扭屈曲承载力的影响,均作了实验验证.
The elastic-plastic bending-torsional buckling of welded I-section columns with eccentric columns was analyzed by the collocation method of weighted residuals. The residual stress was considered in the calculation. On this basis, the in-plane bending moment-rotation angle relationship of the connection was established. Theoretical model, experimental verification of the influence of semi-rigid connections and in-plane rotation constraints on the flexural-torsional buckling bearing capacity of a biased column was performed.