基于AutoCAD的无控制点建筑物放样方法

Lofting method of building without control points based on AutoCAD

在工程施工放样阶段,一般根据现场附近的已知控制点,将建筑物的位置在实地标定出来。然而,由于施工过程的损坏或其他原因导致已知控制点往往找不到。本文提出了基于AutoCAD的图形处理技术,充分利用已有建筑物解析计算出假定控制点的坐标,然后根据假定控制点与设计建筑物的关系进行放样的方法。并且探讨了此方法的放样精度及适用场合。

In engineering construction lofting stage, building position is generally located by the known control points near construetion site. However, the known control points can＇t usually be found due to construction damage or other causes. This paper proposed one lofting method based on AutoCAD graphical processing teehnology. The assumed control point coordinate was calculated by analyzing existing buildings. Then buildings were lofted by the relationshi Pbetween assumed control points and design constructions. And the authors discussed the precision and applicable occasions of the lofting method.