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《剖析》一文论证了《起重机设计规范》GB 3811—83和《钢结构设计规范》TJ17—74修订本征求意见稿中对单向压弯构件平面内稳定的验算公式.指出两个公式同出一源,但因推导方法不同得出了不同的结果.因而该文作者认为:起重机设计规范公式较为正确,钢结构设计规范修订稿推荐的验算公式,由于经过一些运算,只符合临界状态的等式条件;据此,建议对单向压弯构件的稳定计算公式宜采用《起重机设计规范》的公式.
The article “Anatomy” demonstrates the formula for the calculation of the in-plane stability of a one-way bending and bending member in the draft of the “Design Code for Cranes” GB 3811-83 and the “Design Specification for Steel Structures” TJ 17-74. One source, but because of different methods of derivation obtained different results. Therefore, the author of this paper believes that: Crane design specification formula is more correct, steel structure design specification revision draft recommended formula, due to some calculations, only in line with the critical state, etc. According to the above conditions, it is recommended that the formula for the “crane design specification” should be adopted for the stability calculation formula of the one-way bending and bending member.