Today, we will discuss what to consider when establishing BIM facility management data. A BIM model consists of numerous virtual components that represent physical building elements, known as BIM components. To create a complete BIM model, each component must include both appearance and attribute information. For instance, a pump equipment component in a BIM model may contain details such as its dimensions, water supply capacity, brand, and other relevant attributes.
As a building progresses through its lifecycle stages within the BIM environment, each component gradually accumulates new data, reflecting the building’s final state upon completion. Consequently, the information content and modeling approach for each component vary slightly at different stages. To ensure BIM models fulfill future operational management requirements and incorporate necessary information for the operational phase, it is essential to develop modeling standards before building the BIM models. These standards should clearly define the content of component information, the accuracy of component appearance, and the methods used for model creation.
The most widely adopted standards originate from the American Institute of Architects (AIA) workflow. The Level of Development (LOD) framework is used to define the appearance accuracy of components within a BIM model. This framework allows the level of detail to evolve progressively from a conceptual approximation (LOD 100) to a precise as-built condition (LOD 500) as the project advances. The five defined levels (based on AIA BIM Protocol, E202 of 2008/G203 of 2012) are:
LOD 100: Conceptual
LOD 200: Approximate Geometry
LOD 300: Precise Geometry
LOD 400: Fabrication and Assembly
LOD 500: As-Built, Completed
The higher the LOD level, the more detailed and information-rich the component becomes. For general facility operation and maintenance, LOD 500 is required because it most accurately represents the real building. However, different building functions have unique operational management needs and processes. The initial step is to analyze the objectives of operation and management, thoroughly understand these needs, and establish the interrelationships between various operational procedures and the building itself.
It is also important to classify relevant information such as personnel and equipment. This process ensures the BIM model can fulfill its intended functions, enabling efficient management and cost savings over time. Based on these requirements, the necessary data for current or future operational management should be integrated into the BIM model’s component information. This includes details like equipment specifications, model numbers, responsible units, purchase dates, and more. Relevant professional engineers should input this information according to their responsibilities to guarantee that the BIM model contains sufficient data for ongoing maintenance, management, and use.
From the development of BIM, experience shows that applying BIM in facility management is the final and crucial piece of the puzzle. BIM supports full lifecycle application and holds great potential to become a core element of facility management. However, ensuring the completeness of management data is just the first step. The real value of BIM lies in effectively leveraging this data in combination with facility management operations.
Building a comprehensive management system requires significant time and investment, and it cannot be accomplished by the construction industry alone. It demands collaboration across the entire industry chain and active participation from owners to deepen BIM’s application in facility management.
That wraps up our discussion on what to consider when establishing BIM facility management data. I hope this article has been helpful to everyone!
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