COMPARISON OF PROJECT COST ESTIMATION WITH CONVENTIONAL METHOD AND DYNAMIC AND SMART MODEL BASED ON BIM BASED ON LIST PRICE

Since the construction industry is one of the industries that consumes lot of resources, reducing the time and cost in this industry is very noticeable. In recent years, several methods have been proposed to control the time and cost of projects, which has led to the emergence of new technologies in this field. Building information modeling (BIM) is one of these new technologies in the construction industry. Important features of BIM technology are the elimination of conflicts in information related to structures, architectures and facilities, which provides good bases for accurate project cost estimation that are not possible in the traditional estimation. In this paper, using the BIM technology capacity through programming and linking the List Price to it, a dynamic and intelligent model is presented to estimate the project cost (Autodesk Revit software used for modeling and using Autodesk Dynamo software for programming and obtaining project cost estimation, which ultimately enters the outputs in Microsoft Excel software.). To validate it by modeling a building and measuring the results, the superiority of the proposed model Compared to the usual methods of project cost estimates are approved. According to results, the developed model has some capabilities such as increasing the speed and precision of estimation, reducing the deviation from the initial estimation at the end of the project, estimating online with regard to changes (volumes And price).