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大跨度拱曲线放样,在我国工程设计施工中曾有许多良好的方法,这些方法大强分为两类:几何作图法和分析计算法。几何作图法依靠手工作图,一缩一放,结果很难保证数据的准确性:而解析法精度虽高,但手算麻烦,耗时较多。为了避免上述缺陷,并将两种方法的优点结合起来,本文所介绍的计算机辅助设计与绘图,既确保了计算数据的准确性,又实现了数据输出图形化,一张设计图纸随时可得,其优点是十分明显的。
Large-span arch curve lofting, engineering design and construction in our country there have been many good methods, these methods can be divided into two categories: geometric mapping method and analytical method. Geometry mapping rely on manual mapping, shrinking, the result is difficult to ensure the accuracy of the data: The analytical accuracy is high, but the time is too much trouble, time-consuming. In order to avoid the above defects and combine the advantages of the two methods, the computer-aided design and drawing introduced in this paper can not only ensure the accuracy of the calculation data but also realize the data output graphing. A design drawing can be readily available, The advantage is obvious.