基于BIM参数化建模的接触网吊弦计算在京张高速铁路的应用研究  

Application of Catenary Dropper Calculation Based on BIM Parametric Modeling in Beijing-Zhangjiakou High Speed Railway

作　　者：王震宇 武鹏 马露露 边原 WANG Zhenyu;WU Peng;MA Lulu;BIAN Yuan(Designing and Research Institute,China Railway Electrification Bureau Group Co.,Ltd.,Beijing 100166,China)

机构地区：[1]中铁电气化局集团有限公司设计研究院,北京100166

出　　处：《铁道运输与经济》2024年第1期67-73,共7页Railway Transport and Economy

基　　金：国家科研院所研究开发专项资金项目(2020YFF0304100)。

摘　　要：随着我国电气化铁路建设的快速增长以及信息化、智能化要求的不断提高,工程设计人员对接触网悬挂的安装要求越来越高,其中吊弦长度计算是接触网悬挂的重中之重。针对基于BIM参数化建模的高速铁路接触网弹性链型悬挂吊弦长度的计算影响因素进行分析,从跨距、第一吊弦距离、结构高度、线材参数、曲线要素等影响吊弦长度计算的关键因素进行数据分析,找出影响吊弦长度的关键因素及变化规律,明确统一的现场测量标准,并通过BIM轻量化平台进行参数化应用,将测量、计算和BIM参数化3部分形成闭环控制,为现场测量和计算提供依据,有效提高吊弦计算的精度,实现施工安装模拟由二维到三维的转变,各环节间数据互联互通,最终为形成高品质的弓网关系提供坚实的基础。As China’s electrified railway construction rapidly grows and the information and intelligence requirements continuously improve,engineering designers have grown requirements for the installation of catenary suspension,in which the calculation of dropper length is the top priority of catenary suspension.The factors affecting the calculation of dropper length of elastic chain type catenary of high speed railway based on BIM parametric modeling were analyzed.The data were analyzed from the key factors affecting the calculation of dropper length,such as span,the first suspension string distance,structural height,wire parameters,and curve elements to find out the key factors and change rules affecting the dropper length,clearing field measurement standards.In addition,the parametric application was carried out through a BIM lightweight platform.The three parts of measurement,calculation,and BIM parameterization form a closed-loop control,which provides a basis for on-site measurement and calculation and effectively improves the accuracy of dropper calculation.The construction and installation simulation transforms from two-dimensional to three-dimensional.Data interconnection is realized and finally provides a solid foundation for forming a high-quality OCS relationship.

关 键 词：BIM参数化建模 吊弦长度 跨距 第一吊弦距离 承力索弛度 结构高度 曲线要素 轻量化展示 

分 类 号：U225.1[交通运输工程—道路与铁道工程]