摘要:随着计算机处理能力与软件功能开发的逐步完善，建筑工程设计中基于BIM三维设计的相关应用已日渐得以扩展，在体量方案比选、报建及初步设计、各专业内完成自身的施工图设计、三维深化设计出图等均有较为实用的方法。但全过程多专业实现BIM的正向协同设计依然举步维艰，原因主要有BIM模型存储方式无法适应传统设计架构、模型成果无法有效拆分、过分依赖国外BIM软件无法充分扩展功能等。本文总结了目前设计单位工作架构，分析了从CAD设计延伸到BIM正向设计的需求与挑战，提出一种以关系型数据库+模型图纸文件管理器为核心的“数模分离”式BIM正向设计平台的架构，采用该架构对设计成果、校审批注、进度控制等非几何信息进行分离式存储管理，之间通过唯一ID值连接，使几何模型与非几何信息之间结合为有机整体，以实现一体化管理。

Abstract: With the continuous development of computer processing capability and software functions, applications related to the BIM-based 3D design of the AEC industry been gradually popularized.There have been many practical BIM-based methods in in volume scheme selection, construction submission and concept design, construction drawing design of each specialties, 3D deepening design, and etc.However, it is still difficult to realize the BIM-based forward collaborative design in full-process and multi-professional, and the main reasons are due to the inapplicability of present BIM model storage mode for the traditional design architecture, ineffective resolution results of the BIM models, and inadequately extensive software functions due to over-dependence on foreign BIM software.This paper summarizes the current working situation, analyzes the requirements and challenges from CAD design to BIM forward design, and proposes a "digital-analog separation" BIM forward with relational database+model drawing file manager as the core.The architecture of the design platform uses the architecture to perform separate storage management of non-geometric information such as design results, school approval notes, and progress control.The unique ID values are connected to make the geometric model and non-geometric information combined into an organic whole in order to achieve integrated management.