By applying BIM technology, drawings are optimized through pipeline integration, with the model adjusted simultaneously. This process allows BIM software to quickly export project quantities, providing essential data support for cost control at various project stages.
The automatic measurement capabilities of BIM software are highly advanced, delivering more accurate results than traditional drawing-based measurements. This automation greatly reduces human error, making calculations reliable and easing the workload of technical and economic personnel. It’s important to note that these automated tasks depend on the Level of Development (LOD) during the modeling process, which involves defining component properties in advance. For example, if steel bars are omitted from the building model, their quantities won’t be calculated automatically. Thus, the accuracy of BIM calculations directly reflects the overall model’s level of detail. Consequently, design team’s technical and economic staff must understand the scope and significance of the model information.
Data export from various BIM platforms is often handled using specialized quantity calculation software. This approach allows technical and economic personnel to focus on quantity takeoff tools without mastering all BIM software functions, reducing the need for extensive pre-training. Currently, engineering quantity software like Autodesk’s QuantityTakeoff offers several modeling advantages, including one-click BIM model imports, CAD recognition modeling, and manual modeling options. These features enable efficient BIM model creation for cost estimation and seamless transfer of information from architectural, structural, and MEP models at different design stages. Even if the model undergoes modifications, the accuracy of quantities and cost indicators remains intact. Any changes to the building model are automatically linked to the cost estimation software, ensuring updated and precise economic data based on the model’s quality and detail.
The system visually represents all objects imported from the BIM model, highlighting recent changes with color coding and marking objects yet to be cost-estimated. This transparency supports effective cost management throughout the project lifecycle.
Compared to traditional 2D design methods, BIM offers unparalleled advantages in the digital management of construction costs. It significantly enhances the informatization level of cost management, streamlines the cost control process, and improves overall efficiency in engineering cost management.
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