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本文应用熟知的能量法导出了变截面杆件在自重作用下的临界荷载公式。这一结果在塔桅结构的设计中可以找到应用。由此我们亦可将等截面杆件的临界荷载作为变截面杆件的临界荷载的特殊情况加以考虑。
In this paper, a well-known energy method is used to derive the critical load formula for the variable cross-section members under their own weight. This result can be found in the design of the tower structure. Therefore, we can also consider the critical load of the iso-section member as a special case of the critical load of the variable-section member.