Many modern commercial buildings involve complex shaped façades, resulting in increasing complexity as well as challenges in façade manufacturing and assembly processes. Currently, the keys to manufacture façade panels are fabrication drawings. However, generating fabrication drawings for façade panels using conventional approaches is time-consuming and error-prone, especially when the number of façade panels gets large. Computer-aided automation can significantly improve the efficiency and accuracy of the manufacturing and assembly process, while conventional drawing automation processes are not able to integrate information from various data sources and optimize drawing layouts. In this paper, a BIM-based framework is proposed to facilitate the automatic generation of fabrication drawings for façade panels. The framework integrates both graphical and non-graphical information from BIM models and other external data sources. Specific algorithms are applied to obtain proper drawing views and optimize drawing layouts based on the BIM geometric models. Complete fabrication drawings as well as a tabulated file with essential graphical information on similar components are generated automatically. The framework is demonstrated using an illustrative example and it shows that time and human effort can be significantly reduced. As a result, all the fabrication drawings of similar façade panels follow a consistent drawing format with explicit layout, leading to higher readability.

许多现代商业建筑都涉及形状复杂的立面，导致立面的制造和组装过程越来越复杂，同时也带来了挑战。当前，制造外墙面板的关键是制造图纸。但是，使用常规方法生成外墙面板的制造图纸既费时又容易出错，尤其是当外墙面板的数量变多时。计算机辅助自动化可以显着提高制造和装配过程的效率和准确性，而常规的图纸自动化过程则不能集成来自各种数据源的信息并优化图纸布局。在本文中，提出了一种基于BIM的框架，以促进外墙面板制造图的自动生成。该框架集成了来自BIM模型和其他外部数据源的图形和非图形信息。基于BIM几何模型，应用了特定算法来获取适当的工程图视图并优化工程图布局。会自动生成完整的制造图纸以及带有类似组件基本图形信息的表格文件。使用说明性示例演示了该框架，该框架表明可以显着减少时间和人力。结果，相似立面面板的所有制造图纸都遵循一致的图纸格式和明确的布局，从而提高了可读性。基于BIM几何模型，应用了特定算法来获取适当的工程图视图并优化工程图布局。会自动生成完整的制造图纸以及带有类似组件基本图形信息的表格文件。使用说明性示例演示了该框架，该框架表明可以显着减少时间和人力。结果，相似立面面板的所有制造图纸都遵循一致的图纸格式和明确的布局，从而提高了可读性。基于BIM几何模型，应用了特定算法来获取适当的工程图视图并优化工程图布局。会自动生成完整的制造图纸以及带有类似组件基本图形信息的表格文件。使用说明性示例演示了该框架，该框架表明可以显着减少时间和人力。结果，相似立面面板的所有制造图纸都遵循一致的图纸格式和明确的布局，从而提高了可读性。