Currently, national standards for BIM technology modeling lack sufficient detail and completeness. This often leads to inconsistencies among models created by different modeling personnel. Additionally, the long-standing neglect of the model review process has resulted in varying levels of expertise among modelers.
Therefore, conducting a thorough model review is essential to ensure the accuracy and quality of the final BIM model. Typically, the general contractor should organize a model review meeting at regular intervals, bringing together technical leaders and engineers from various disciplines to collaboratively assess the model. The model review process generally covers the following key areas:
1. Consistency Check: Verify the alignment between graphics and models. Using walkthrough software, identify any missing or redundant components and confirm that the model aligns with the original design intent.
2. Clash Detection: Utilize collision detection software to identify conflicts among the various professional models and generate clash reports. Alternatively, the BIM-5D platform can be used for clash detection, although it does not produce reports. Usually, modeling personnel have already performed primary clash detection within their modeling software, so the focus should be on identifying gap collisions and verifying the relative positioning of components across different specialties.
3. Standard Compliance: Use standard inspection tools to ensure that fonts, annotations, line types, and other elements within the BIM models and files comply with relevant BIM standards.
4. Component Validation: Through walkthrough software, check for undefined components, incorrect geometric dimensions, or other erroneous information within the model.
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