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设置了支撑架的框架结构,当支撑刚度还不足以使框架柱可按无侧移框架确定计算长度时,如何确定框架柱的计算长度问题,本文对此进行了研究,提出了计算公式.本文还提出了使框架柱可按无侧移计算稳定性的支撑门槛刚度.适当考虑结构初始缺陷和侧向荷载的影响后,此刚度可作为确定框架柱计算长度时区分有侧移和无侧移框架的合理标准.
The frame structure of the support frame is set up, when the support stiffness is not enough to make the frame column can be calculated by the no-sway frame, how to determine the calculation length of the frame column is studied in this paper, and the calculation formula is proposed. The rigidity of the support sill for which the frame column can be calculated for stability without lateral displacement has also been proposed. With proper consideration of the effect of the initial structure defect and lateral loads, this stiffness can be used to determine the calculated length of the frame column to distinguish between lateral and non-swaying displacements. The reasonable standard of the framework.