铁路客站BIM自动化生成技术研究

Automatic generation technology of BIM for railway passenger station

随着铁路工程建设的高质量发展,铁路建筑信息模型(BIM,Building Information Modeling)自主化建模对BIM自动化生成技术的需求日益增长。文章以铁路客站为例,根据其二维图纸自动转化生成BIM的工程需求特点,从数据采集、转换、构件匹配、模型优化等方面,提出了BIM自动化生成技术体系主要内容。基于数据交换格式(DXF,Data Exchange Format)的数据读取、矢量图形识别、图形巡径模糊识别技术,提出了二维图纸关键信息存储方式和提取方法;基于BIM构件间的逻辑关系,提出了标准构件模型的二维转三维、快速布置及优化技术。研究结果表明,在铁路工程建设项目中应用以上技术,可提高BIM建模效率,提升铁路工程管理质量与水平。

With the high quality development of railway engineering construction,the demand to Building Information Modeling(BIM)automatic generation technology for autonomous modeling of railway BIM is increasing day by day.Taking railway passenger station as an example,according to the engineering demand characteristics of automatic transformation of two-dimensional drawings to generate BIM,this paper put forward the main contents of BIM automatic generation technology system from the aspects of data acquisition,transformation,component matching and model optimization.Based on the data reading,vector graphics recognition and graphics patrol fuzzy recognition technology of Data Exchange Format(DXF),the paper proposed the storage mode and extraction method of key information of two-dimensional drawing.Based on the logical relationship between BIM components,the paper proposed the two-dimensional to three-dimensional,rapid layout and optimization technology of standard component model.The results show that the application of the above technologies in railway engineering construction projects can improve the efficiency of BIM modeling and improve the quality and level of railway engineering management.