How can cost engineers effectively perform cost estimation using BIM technology? This question has long been a concern for many professionals. BIM Architecture Training Network will explore this topic in detail.
Currently, in China, BIM models are primarily developed during the design phase. However, when designers create these BIM models, they often do not consider the specific requirements for cost estimation. They neither tailor the model to include only the information necessary for cost preparation nor ensure that cost-related data is properly integrated. This highlights the need to establish a cost implementation system based on BIM technology.
In practice, there are two main approaches:
First, building a BIM model that inherently contains cost information. This approach demands significant time and effort, both in terms of software development and adapting personnel workflows.
Second, using specialized software to extract quantity data from existing BIM models for cost calculation. This method connects project information within the BIM model to cost databases or systems. Its main advantage lies in easier implementation at both the software and operational levels. However, it also requires manual intervention to manage changes—whether design changes affect costs or cost adjustments lead to design revisions. Effective communication between design and cost teams is essential here.
From this analysis, it is clear that achieving accurate cost estimation with BIM technology is not an overnight process. It requires time, practical experience, and ongoing refinement. Therefore, cost engineers should maintain confidence in both their skills and BIM technology.
Currently, the most relevant cost-related application within BIM is software for calculating engineering quantities. Integrating this with pricing software is key to fulfilling BIM-based cost estimation needs. Such integration not only improves the efficiency of cost estimation but also enhances the accuracy, consistency, and standardization of data. Furthermore, it lays the groundwork for building a comprehensive database of cost indices, structured according to standardized classifications of building elements and project components.
Must log in before commenting!
Sign Up