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采用能量原理推导了设置竖向加劲肋钢板墙的弹性屈曲应力的简化计算公式,并根据理论公式进行了参数分析,研究了钢板高宽比、加劲肋数量、加劲肋与钢板刚度比以及加劲肋与钢板面积比等参数对钢板墙竖向屈曲荷载的影响。简化公式计算结果与有限元计算结果吻合良好。研究表明,在钢板墙高宽比确定的情况下,加劲肋与钢板的刚度比是影响加劲板竖向屈曲荷载的主要因素,加劲肋与钢板的面积比对加劲板屈曲荷载的影响较小,加劲肋端部与周边框架不连接的钢板墙优于加劲肋端部与周边框架连接的钢板墙。
Based on the energy principle, the simplified formula for calculating the elastic buckling stress of the vertical stiffened steel wall is deduced and the parameters are analyzed according to the theoretical formula. The effects of the aspect ratio, the number of stiffeners, the stiffness ratio between the stiffener and the stiffener, And steel plate area ratio parameters on the vertical buckling load of steel wall. The simplified formula is in good agreement with the finite element method. The results show that the stiffness ratio between the stiffener and the steel plate is the main factor affecting the vertical buckling load of stiffened plate when the aspect ratio of the steel wall is determined. The effect of stiffener-plate area ratio on the buckling load of stiffened plate is small, Steel walls with stiffener ends that are not attached to the perimeter frame are better than steel walls with stiffener ends attached to the perimeter frame.