Graphic modeling of the enclosing structural units based on BIM technologies

Using hollow concrete stones is a perspective technology in modern construction. It has significant advantages in terms of weight, utilization of construction materials, module structure, rapid installation, and strong bearing capacity at the same time. However, opposite to foreign analogues, the Russian building rules require additional criteria for enclosing structures that is frost resistance, waterproof, specific physical and chemical composition of concrete mixture with various additives, and others. This leads to more expensive projects and longer time of construction. The paper considers the ways to increase the efficiency of graphic modeling and computer-aided design of enclosing structural units made from hollow concrete stones. For this purpose, we use modern technologies of Building Information Modeling (BIM) and worldwide known software products such as AutoDesk Revit and AutoCAD. The graphic modeling process has a module structure which allows increasing enterprise-class automation level, accelerated creation of new construction projects, quality improvement, and besides geometry, the definition of efficient composition of concrete mixture and other materials in each case of certain implementation. At the same time, the verifying calculation of accepted decisions in computer-aided system is of great importance. The paper presents an example of3D graphic model of outer wall and computer-aided design using Revit and AutoCAD. The results of the research would be useful for further evolution of BIM technologies and implementation at various companies of construction industry.