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为了研究板件中间加劲的复杂卷边槽钢轴压构件畸变屈曲临界应力的简便计算方法,应用有限条分析软件CUFSM对冷弯薄壁板件中间加劲的复杂卷边槽钢以及腹板中间V型加劲的复杂卷边槽钢共90个轴压构件进行数值模拟,分析各参数对构件弹性畸变屈曲临界应力的影响。经拟合分析,得出针对板件中间加劲的复杂卷边槽钢、腹板中间V型加劲的复杂卷边槽钢轴压构件的弹性畸变屈曲临界应力的简化计算公式,并验证该公式的有效性。
In order to study the simple calculation method of the critical buckling stress of the buckling channel in the middle of stiffened plate, the finite element analysis software CUFSM is used to simulate the complicated curled channel in the middle of cold-formed thin- A total of 90 axial compression members with stiffened complex curling channel were numerically simulated to analyze the influence of various parameters on the critical stress of elastic deformation buckling of members. Through the fitting analysis, the simplified formula of the critical stress of elastic distortion buckling of the complex curled channel steel axial compression member with the complicated curled channel steel and the web V-stiffener in the middle of the plate is obtained. Effectiveness.