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分别采用有限条数值解法和手算方法对16根轴压简支试件的弹性局部、畸变屈曲临界应力进行了计算,对比了数值解法与手算方法的计算结果,验证了手算方法求解弹性稳定临界应力的有效性。研究了V形加劲复杂卷边槽钢轴压构件的弹性稳定性能。研究表明:V形加劲肋的存在对轴压试件的弹性局部屈曲临界应力影响显著,但对弹性畸变屈曲临界应力影响较小,减小翼缘板件的宽厚比能明显提高截面的弹性畸变屈曲临界应力。
The elastic local and the critical buckling stress of 16 specimens under axial compression were calculated by using numerical solution of finite strip and hand calculation respectively. Comparing the calculation results of numerical solution and manual calculation, The effectiveness of stabilizing critical stress. The elastic stability of the V-shaped stiffened complex curled channel axial compression member was studied. The results show that the existence of V-shaped stiffeners has a significant influence on the critical stress of elastic buckling of axial compression specimens, but has little effect on the critical stress of elastic deformation buckling. Decreasing the aspect ratio of the flange plates can obviously increase the elastic deformation Buckling critical stress.