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小半径圆弧形平面房屋的现场施工放线,常采用拉线法施工,而大半径圆弧形平面房屋的现场施工放线,多采用坐标计算法。它的主要优点是通过简单的数学计算,能获得较高的精确度,施工放线速度也快。我们对某工程的施工放线, 曾采用两种坐标计算法,现介绍如下。工程平面形状见图1,房屋共22间,前圆弧半径86500毫米,每间轴线弦长4000毫米,房屋进深11800
The on-site construction of small-radius circular-arc flat houses is often carried out by pull-wire construction. On-site construction of large-radius circular-arc-shaped flat houses uses coordinate calculation methods. Its main advantage is that with simple mathematical calculations, higher accuracy can be achieved, and construction can be performed faster. We have used two kinds of coordinate calculation methods for the construction of a certain project, which are described below. The plane shape of the project is shown in Figure 1. There are 22 houses, the radius of the front arc is 86500mm, the length of each axis is 4000mm, and the depth of housing is 11800.