Engineering data serves as the cornerstone of effective construction management. To fully harness this data, BIM information must be carefully extracted, processed, and analyzed. Consequently, both the timing of BIM model delivery and the quality of the model itself are critical factors that determine the success or failure of BIM implementation during the construction phase. In this article, we delve into expert insights on the role of BIM and its essential requirements in construction management.
1. BIM Model Requirements During Construction
The quality of BIM models throughout the construction process greatly influences their practical usability. How components are segmented and organized within a BIM model directly affects the ease and accuracy of extracting engineering data. Typically, components are divided according to building subdivisions and the construction organization design, often aligned with the Work Breakdown Structure (WBS). This method enables the creation of various data types tailored to specific needs, ensuring that BIM information effectively supports construction management.
2. Sources of BIM Models for Construction Companies
Construction companies generally acquire BIM models through two primary methods:
One approach involves receiving BIM models from external sources. Increasingly, third-party specialists—such as design teams or project owners—develop BIM models on behalf of construction firms. The construction companies then modify or reconstruct specific components or groups. For example, they might segment floor construction using a “skip warehouse” approach, dividing floors according to the construction plan. This customization provides data tailored to construction management needs. Due to the specialized nature of these adjustments, construction companies often perform this work in-house to meet their specific BIM management requirements.
Alternatively, construction companies may choose to create their own BIM models. By assembling internal teams to build models based on design drawings, firms gain a deeper understanding of project details. This approach ensures the BIM models closely align with the unique demands of construction management.
3. Scheduling Requirements for BIM Model Development
Drawing on previous BIM modeling experience, it is advisable to complete BIM modeling by the end of the excavation phase. The BIM model should be substantially finalized before foundation work begins. This schedule ensures continuous support for construction management and allows modeling personnel to work efficiently. For projects around 150,000 square meters, the BIM modeling process should ideally be completed within approximately 40 days.
4. Information Granularity in BIM Models
Keeping BIM model information accurate and up-to-date is essential. Beyond promptly reflecting design changes, all related data must be comprehensive and precise. Higher granularity facilitates easier extraction, combination, and processing of information, leading to more detailed presentations.
However, increased granularity also results in a greater number of components and a heavier maintenance workload—especially concerning supplier information and other detailed specifications. The amount of data entry per component rises significantly, which can overwhelm construction personnel responsible for maintaining BIM data during later stages. Therefore, it is crucial to balance the level of detail to provide sufficient granularity for construction management while avoiding excessive maintenance demands.
We hope these expert insights into BIM requirements for construction management help clarify your questions and support your BIM implementation efforts.
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