轨道交通工程基于REVIT模型的风管优化碰撞-BIM智能拆模施工技术

Optimization of Collision Algorithm in Rail Transit Engineering Based on REVIT Model,the Intelligent Formwork Removal Construction Technology

本文依托广州市轨道交通工程三号线,为优化BIM模型对现场施工的指导作用和准确性,提出以高精度三维激光扫描技术获得站内三维点云坐标信息,辅以精准建模重构出毫米级误差的REVIT文件,运用轨道交通工程基于REVIT模型的风管优化碰撞-BIM智能拆模施工技术,其核心复式权重框架性奖励机制处理后形成可直接送至工厂加工和指导现场施工的分段模型及其属性参数的BIM模型,通过实测数据分析BIM智能拆模施工技术对于施工工期质量效率的影响。研究结果表明:1)采用BIM智能拆模施工技术替代传统工法可将原本两星期的拆模作业工期缩短至两天;2)形成的模型可直接导出数据和参数用于工厂加工装配式建筑;3)对于现场具有先一步谋划优化碰撞和美观设计的作用;4)利用可视化的优势,经验证可大幅度提高合格率和缩短工期。

Relies on the Guangzhou Metro Line 3 project,this article optimize the guidance and accuracy of BIM models for on-site construction.It proposes to use high-precision 3D laser scanning technology to obtain three-dimensional cloud point coordinate information inside the station,supplemented by precise modeling to reconstruct a millimeter level error in the REVIT file.Using the REVIT model-based air duct optimization collision BIMintelligent demolding construction technologyin railtransit engineering,The core re examination weight framework reward mechanism is processed to form a segmented model and its attribute parameters BIM model that can be directly sent to the factory for processing and guiding on-site construction.The impact of BIM intelligent demolding construction technology on the quality and efficiency of the construction period is analyzed through measured data.The research results indicate that 1)using BIM intelligent demoulding construction technology to replace traditional construction methods can shorten the original two-week demoulding operation period to two days;2)The formed model can directly export data and parameters for factory processing of prefabricated buildings;3)For on-site planning,it plays a role in optimizing collision and aesthetic design in the first step;4)By utilizing the advantages of visualization,it has been proven that it can significantly improve the qualification rate and shorten the construction period.