The BIM model can be seen as a comprehensive document containing all the data related to a building project—much like a medical examination form that clearly shows where issues lie and what needs to be modified. The purpose of a BIM model varies at each stage of a project. Today, I will discuss the uses of BIM models during different phases of a project.
I have previously written many articles introducing BIM models. You can find those under 【What is a BIM model? What is its function?】. In summary, BIM models store data from various project stages, allowing for integration, analysis, processing, sourcing, and implementation. This helps all stakeholders gain a deeper and more comprehensive understanding of the project.
(1) Planning Stage: At this stage, data collection includes geological drilling and land surveys. In China, BIM technology supports quantitative design and sunlight analysis to optimize early planning decisions.
(2) Design Phase: During this phase, data includes design drawings, structural calculations, and design review documentation. BIM technology helps develop detailed volumetric models continuously. It supports detailed design, design reviews, and regulatory compliance by integrating models from multiple disciplines. This process reduces errors and ensures consistency across design drawings.
(3) Construction Phase: Here, data primarily consists of inspection records gathered during construction, such as self-inspection forms, material certification documents, and construction photos—all linked to the BIM model. BIM technology aids in refining design models, monitoring the construction process through the model, and creating detailed construction plans.
(4) Completion and Acceptance Stage: Data at this stage includes public safety inspection reports and equipment information. BIM technology enhances traditional paper-based reports by providing 3D visual models that allow users to query construction progress and inspection details. The BIM model is then handed over to the community management committee. In the future, if there are questions about the construction process or building materials used, stakeholders can click on components within the BIM model to retrieve relevant information based on the actual location on site.
From the above overview, it is clear that BIM models serve different purposes at each project stage. This brings up a common question: should BIM models be created with maximum detail from the very beginning? The answer is no. Overloading the model early on wastes time and money, and frequent changes later on become difficult to manage. In China’s construction industry, where project changes are common, BIM models only need to meet the detail requirements appropriate for each stage. As long as the model contains the necessary attributes for that phase, it is sufficient.
That concludes our discussion on the uses of BIM models in various stages of a project. I hope this article has been helpful to you!
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