基于BIM技术的地下空间曲线钢管分段排布算法

A BIM technology-based algorithm for steel pipe segmentation arrangement of underground space curves

针对长距离输水工程中钢管分段效率低、精度差及模型数据检查困难等问题,引入可视化程度高、信息集成能力强的建筑信息模型(BIM)技术,以BIM设计平台Autodesk的Revit软件及其二次开发插件Dynamo作为开发平台和可视化编程工具,开发了一套基于Revit软件的钢管自动分段、自动排布模拟、自动集成设计施工信息的分段排布算法,实现了对复杂输水路线的良好拟合。该分段排布算法能快速调整地下复杂空间曲线的钢管分段排布方案,直观地检查钢管分段的合理性和准确性,快速查询钢管编号、里程、偏差以及坡口等参数信息,实现参数微调与图元变化联动以及BIM模型与设计数据的交互,已成功应用于杭州市第二水源工程、嘉兴市域外配水工程等工程。

Aiming at the problems of steel pipe segmentation in long-distance water transfer projects,such as low efficiency,poor accuracy,and difficulty in checking model data,building information modeling(BIM)technology was introduced due to the high degree of visualization and strong information integration capabilities.Based on Revit of the design platform Autodesk and its secondary development plug-in Dynamo as development platform and visual programming tool,a set of programs based on Revit for automatic segmentation,automatic layout simulation,and automatic integration of design and construction information of steel pipes were developed,which realized a good fitting of complex water transfer routes.The proposed segmentation arrangement algorithm can adjust steel pipe segmentation plans for complex underground space curves quickly,check the rationality and accuracy of the steel pipe segmentation intuitively and query parameter information such as pipe number,mileage,deviation and groove rapidly.The linkage of parameter fine-tuning and graphic element change can be realized,together with the interaction between BIM model and design data,which has been usefully applied in the Hangzhou Second Water Source Project and the Water Resources Allocation Project Outside Jiaxing.