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结合陕西省中医研究所8层综合楼升板建筑工程,对具有不规则柱网平面和纵横两向偏心位置竖井,在施工提升阶段最不利状态下的群柱体系失稳临界荷载,进行了模型试验,同时,初步提出引用多层多跨平面铰接排架形式,分析这种空间结构在垂直荷载作用下稳定临界力的近似计算方法,并将应用电子计算机的源程序给出。这项模型试验和理论分析都很不成熟,需要进一步讨论研究,本文仅供有关方面参考。在水平力干扰下这种结构的临界荷载,将另文阐述。
In combination with the 8th floor rise construction project of the Shaanxi Provincial Institute of Traditional Chinese Medicine, the critical load of the group column system under the most unfavorable conditions during the construction improvement stage was modeled for the shafts with irregular column-grid plane and vertical and horizontal biaxial eccentric positions. At the same time, a preliminary multi-span multi-planar articulated and trussed form is cited, and an approximate calculation method for the critical force of this spatial structure under vertical loads is analyzed and given by the source computer program. This model test and theoretical analysis are very immature and need further discussion and research. This article is for reference only. The critical load of this structure under horizontal force disturbance will be described in another article.