摘要:由于项目工程算量信息在建筑工程项目中的重要性以及传统BIM软件对计算机硬件条件的依赖，导致BIM技术在工程项目成本管理中难以应用。本文通过Dynamo对混凝土构件柱、梁及板之间的扣减关系进行了修正，并利用Revit二次开发对修正后的模型进行了轻量化处理，导出了glTF轻量化格式、控制构件聚合关系的结构树文件以及导出符合我国计价规范的清单工程量。最后基于Three.js图形引擎，通过HTML、CSS及JavaScript搭建了BIM轻量化平台，实现了BIM模型Web端的快速加载，并利用构件UniqueID实现了模型构件与清单工程量信息的匹配，实现Web平台算量信息在线统计。最后导入BIM模型案例对本研究进行验证，实际效果满足要求。

Abstract: It is difficult to implement BIM technology in project cost management due to the importance of project engineering calculation information in construction projects and the dependence of computer hardware in traditional BIM software. In this paper, the deduction relationship among concrete member column, beam, and slab is revised by Dynamo. The revised model is lightened by using Revit secondary development, then exporting glTF light format, structural tree file controlling the aggregation relationship of members, and the list quantity of work in accordance with China's pricing specification. Finally, based on Three.js graphics engine, the BIM lightweight platform is built by HTML, CSS and JavaScript to achieve the fast loading of BIM models on the website. By using component UniqueID, the paper succeeds in the matching model components with list quantity information and achieves online statistics of quantity information on the web platform. Finally, the BIM model case is imported to verify that the actual effect of this study meets the requirements.