近年来,国内很多设计科研院所、高等院校都开展了CAD在土木建筑方面的应用研究,但由于所具备的硬件环境不同,研究方法、手段与目的也就不尽相同。大多数单位都是在中小型机或高档微机上进行,内容多为建筑方案设计,主要致力于研究CAD系统的交互功能和CAD系统的三维旋转、透视功能。这样做当然是非常必要的,尤其是对于大型公共建筑设计项目的方案设计来说,一个实用有效的CAD系统所能起的作用,决不是人可以代替的。因此,人们不惜花费较多的人力、物力去研制这样的系统。但是不能忘记,土木建筑中还有一批面广量大的设计项目,如住宅楼的设计。尽管国内各个设计单位均有住宅楼的定型设计图纸,然而根据我们十几年来的实践证明,是很难直接利用现成的定 In recent years, many domestic design institutes and colleges and universities have carried out research on the application of CAD in civil engineering. However, due to the different hardware environment, the research methods, methods and purposes are not the same. Most of the units are carried out on small and medium-sized machines or high-end microcomputers. The content is mostly architectural design. It is mainly devoted to the study of the interactive functions of CAD systems and the three-dimensional rotation and perspective functions of CAD systems. Of course, this is very necessary, especially for the design of large-scale public building design projects, the role that a practical and effective CAD system can play is by no means a substitute for people. Therefore, people do not hesitate to spend more manpower and material resources to develop such a system. However, we must not forget that there are also a large number of large-scale design projects in civil construction, such as the design of residential buildings. Although all design units in China have finalized design drawings for residential buildings, according to our more than ten years of practice, it is difficult to directly use ready-made designs.