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不规则柱网铰接排架可分为二类:第一类是若干柱列柱距普遍增加一倍;第二类是个别柱距增加一倍。它们都可用弹性支承梁的原理,考虑房屋的空间作用进行分析。本文导出其计算公式,并绘成贡线以供设计时参考或采用。 文中也探讨了它们的简化计算方法。对第一类排架,C.M.杜宾曾建议采用单元分析法,但未详予分析研讨,本文对各种单元分析法与弹性支承梁的方法进行了比较。对第二类排架,本文对H.C.斯特列律斯基教授推荐的方法进行了商榷,并对几种方法作了对比。通过分析比较,对这二类排架,根据荷载情况以及屋面与排架风度情况,建议了几种不同的简化计算方法。
Irregular column net articulated arranging can be divided into two categories: the first type is that the column spacing of several columns is generally doubled; the second type is that the individual column spacing is doubled. All of them can use the principle of elastic support beams, considering the spatial role of the house for analysis. This article derives its calculation formula and draws a line for reference or adoption at design time. The paper also discusses their simplified calculation methods. For the first type of girder, C.M. Dubin had proposed to use the element analysis method, but did not elaborate on the analysis and discussion. This paper compared various element analysis methods with the method of elastic support beams. For the second type of racking, this article discusses the method proposed by Prof. H.C. Strellsky and compares several methods. Through analysis and comparison, several different simplified calculation methods are proposed for these two kinds of bent frames, depending on the load conditions and the roof and frame style.