CAD is currently the most widely used software in the domestic architectural design industry, enjoying high popularity throughout the design process.
Although BIM and CAD may seem fundamentally different, distinguishing them clearly can be challenging because CAD originally functions as 2D virtual drafting software. However, with advancements in CAD technology, 3D CAD programs like Tianzheng and Speedikon have emerged and gained application.
Therefore, it is inaccurate to classify CAD solely as 2D design software. But is 3D CAD equivalent to BIM? The answer is no. While 3D CAD enables three-dimensional representation, its core elements remain virtual vector lines rather than actual architectural components.
In contrast, BIM models consist of building elements that carry real, detailed information. For example, when modeling a wall in BIM, you must specify its length, width, height, position within the project, primary materials, and layering structure. These parameters provide a comprehensive and realistic description of the wall, going beyond simple virtual lines.
Currently, BIM and CAD coexist in China’s construction industry during a transitional phase. Due to industry regulations, CAD files remain the standard format for design deliverables. BIM technology, meanwhile, is still developing because of immature software solutions. However, moving forward, CAD is expected to become a subset of BIM and ultimately be replaced by it.
Must log in before commenting!
Sign Up