摘要:BIM模型可作为建筑施工阶段的各类业务信息载体，模型几何及信息的精确处理是施工模型高质量应用的关键。如何处理模型以实现与业务的高效融合是行业面临的瓶颈问题。由于施工现场的业务与管理粒度通常以施工段形式划分，基于施工段的BIM模型分割尝试解决这一问题。本文提出了按施工区段边界对模型构件进行切割，将几何与信息归集到相应的施工区段中，从而增强模型与业务的关联，实现项目数据按施工区段进行统计应用。因此，深入研究施工段划分过程中的模型分割技术及其应用场景具有重要意义。本文探讨了在轻量化模型分割流程中，各步骤应用HOOPS组件所需的技术研究思路与实现算法，并分享了某公寓项目的试点验证成果。

Abstract: BIM models serve as carriers for various business information in the construction stage, and accurate processing of geometry and information is key to high-quality applications. The challenge in the industry is how to effectively integrate the model with business needs. Since construction site operations and management are typically divided by construction sections, BIM model segmentation based on construction sections is an approach to address this issue. This paper proposes a method of cutting model components according to construction section boundaries, aggregating both geometry and information into corresponding sections, thus enhancing the correlation between the model and business processes and enabling statistical application of project data by construction section. Therefore, studying the technical implementation of model segmentation during section division and exploring its application scenarios is crucial. The paper discusses the research ideas and implementation algorithms for applying HOOPS components in each step of the lightweight model segmentation process, and shares the pilot results from an apartment project.