What exactly does BIM-based deepening design entail? Many people immediately think of collision detection, often equating it with BIM deepening design. However, there is much more involved. Today, we will explore other aspects of BIM-based deepening design beyond just collision checks.
1. Collaborative Optimization of Drawings
First, relevant information and data from all project participants are collected to create a detailed BIM model. This model is then analyzed for collisions, design flaws, errors, unmet design requirements, and insufficient ceiling clearances across different disciplines. Identified issues, along with BIM-based modification suggestions, are communicated to all stakeholders. Each participant updates their respective professional drawings accordingly, and BIM synchronizes the updated information to verify and coordinate the designs collaboratively on a unified platform. This comprehensive data sharing enhances communication throughout all project stages, ensuring high-quality drawings and effectively addressing early-stage coordination challenges.
2. Construction Guidance
In areas with dense pipeline installations and computer rooms, BIM leverages three-dimensional electromechanical models in combination with floor plans and sectional views to help construction teams intuitively and visually understand the spatial layout. This visualization makes pipeline installation straightforward and efficient. When on-site issues such as collisions arise, the BIM model can be updated to reflect actual conditions, enabling collaboration among various engineering disciplines to develop practical solutions. This approach helps resolve discrepancies between architectural and structural drawings and the realities of the construction site, which often hinder mechanical and electrical installations.
3. Construction Coordination
Coordinating with owners during construction can be challenging, especially with the increasing specialization of labor. Multiple contractors may be involved, such as those handling curtain walls, elevators, and electrical systems. Coordination across dozens of construction teams on a single site requires a clear standard. While everyone may claim to have accurate design drawings, collisions often arise during implementation. By using a standardized BIM model, drawings from each company can be validated for accuracy beforehand. When conflicts occur, stakeholders refer to the shared model for comparison, enabling simpler coordination and streamlined scheduling. This transparency improves the final installation results and reduces issues related to labor division, rework, and staggered construction phases. This is the core problem BIM deepening design addresses during construction.
4. Construction Budgeting
Traditionally, budgets were derived by manually measuring drawings, often leading to protracted negotiations with consulting firms that resulted in compromised figures without a definitive standard. Today, BIM models include detailed configurations of pipes, bends, accessories, and other components. For budgeting purposes, it is essential that the modeling process separates systems, pipes, and materials clearly. This allows the generation of accurate and comprehensive construction budgets directly from the model, which then supports precise construction cost settlements.
5. Hydraulic Calculations
Previously, hydraulic calculations were performed using floor plans, which often underestimated components such as bends. In reality, many additional bends may be present that are not reflected in the plans, potentially causing future issues. For example, in many private buildings in Shanghai, balance valves at the end of piping systems fail to open properly, and flow rates cannot reach 60%, preventing automatic control. This typically results from focusing too narrowly on fine decoration without sufficient technical consideration. With a complete BIM model, calculations can be integrated early in the design process, yielding more accurate results and identifying potential problems well in advance. This integration of tools and on-site operations demonstrates the true value of BIM deepening design, making the entire process smoother and more reliable.
In summary, BIM-based deepening design encompasses much more than collision detection. It includes collaborative drawing optimization, construction guidance, coordination, budgeting, and hydraulic calculations, all contributing to a more efficient and accurate construction process. We hope this overview has provided you with a clearer understanding and proves helpful in your projects.
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