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本文研究了X型双肋拱系在径向荷载作用下的弹性屈曲问题,利用最小势能原理推导了具有不同支承条件的拱系侧倾屈曲临界荷载的解析表达式,理论分析和计算表明:本文提出的临界荷载表达式具有足够的精度,使用简捷方便。
In this paper, the elastic buckling of X-type double rib arch system under radial load is studied. The analytical expression of the critical load of arch buckling with different supporting conditions is deduced by using the principle of minimum potential energy. Theoretical analysis and calculation show that: The proposed critical load expression has enough accuracy, easy to use.