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本文叙述具有空腹式拱上桔构的拱的計算方法,此方法是形变法与力矩分配法的混合。两种方法的这种混合使比较简单地計算象整体结构这种系統成为可能。許多文献提供了这种结构的計算。—些文献的目录引于本文末尾。下面以实例来說明这种計算方法。計算简图的基本尺寸及其几何特征示于图1与表1。二次抛物綫形的拱軸在节間范围内被改直。計算按影响綫进行。为此,依次加P=1的集中力于拱上結构的节点。計算时运用荷載对称布置与反对称布置的方法。
This article describes the calculation method of an arch with a fast-on-board arch structure. This method is a mixture of deformation method and moment distribution method. This mixing of the two methods makes it relatively simple to calculate such a system as an integral structure. Many documents provide the calculation of this structure. - The contents of these documents are cited at the end of this article. The following examples to illustrate this method of calculation. The basic dimensions and geometric features of the calculated schematic are shown in Figure 1 and Table 1. The quadratic parabolic arch axis is straightened within the internode. Calculated according to the impact line. To this end, plus P = 1 in turn focus on the structure of the arch node. Calculation method using load symmetrical arrangement and anti-symmetrical arrangement.