Currently, the most advanced software for engineering quantity calculation and pricing in China are Guanglian Da GBQ4.0 and Luban.
However, neither of these software solutions can directly import electronic drawings created by design institutes using AutoCAD technology into the engineering quantity calculation software. Nor can they import 3D models derived from 2D drawings directly. Instead, users must rebuild the calculation models for each component within the software based on the 2D drawings. After that, the total engineering quantities are calculated according to the defined rules. Following the quantity calculation, project costs can be determined through the bill of quantities pricing program, which relies on the engineering quantity statistics table.
Regarding BIM, except for the quantity of steel reinforcement in structural engineering—which cannot yet be automatically calculated from BIM models—all other components, equipment, and facilities can be quantified automatically through the models. However, the BIM software currently in widespread use is foreign and does not fully comply with domestic engineering quantity calculation standards in China.
Furthermore, the modeling rules, component segmentation, classification, and summary statistics in existing BIM software do not completely align with those used in domestic engineering quantity calculation software. Although models can be transferred through compatible formats, practical issues such as information loss and incomplete model recognition often arise.
The key challenge is how to effectively integrate BIM’s quantity calculation capabilities with domestic pricing software to create a “BIM cost model” that aligns with China’s current standards for engineering measurement and pricing. Achieving full synchronization between BIM quantity statistics and engineering pricing software would enable the powerful statistical analysis functions of BIM to fulfill the cost analysis requirements throughout all project stages—from planning and preliminary design to construction drawings and the construction process. This integration would allow real-time cost calculation, data compilation, and detailed breakdowns at each stage.
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