摘要
电气化铁路桥墩布置形式直接影响接触网系统设置方案,特别在多线T梁错墩桥梁区段,接触网设置方案复杂多变,直接影响系统的安全性、可靠性和工程经济性。本文结合西部地区某实际工程,针对多线T梁错墩桥梁区段接触网设置方案展开研究,分析其优缺点,并最终提出适用于本线的接触网设置方案。研究结论:在多线T梁错墩桥梁区段,应优先采用斜交硬横跨形式;如采用双线路腕臂柱,建议选用正定位方式以减小横梁长度。本文研究成果可为后续类似桥梁类型接触网设计提供有效借鉴。
The pier layout of electrified railway directly affects the setting principle of catenary system.Especially in the section of multi-line T-beam split-pier bridge,the setting scheme of catenary is complex and changeable,which directly affects the safety,reliability and engineering economy of the system.Combined with a practical project in western China,this paper studied the catenary setting scheme for multi-line T-beam split-pier bridge section,analyzed its advantages and disadvantages,and finally put forward the optimal setting scheme for the bridge catenary.The conclusions of the study show that in the section of multi-line T-beam staggered pier bridge,the inclined stiff-span is preferred.If double-line arm column is used,positive positioning is recommended to reduce the length of the beam.The research results of this paper will provide effective reference for the subsequent design of similar catenary bridges.
作者
王鑫
WANG Xin(China Railway 21st Bureau Group Electrochemical Engineering Co.Ltd.,Lanzhou Gansu 730000,China)
出处
《铁道建筑技术》
2023年第8期118-121,共4页
Railway Construction Technology
基金
中铁二十一局集团有限公司科研开发项目(18A-2)。
关键词
T梁桥
错墩区段
接触网
设置方案
T-beam bridge
staggered pier section
catenary
setting principle
作者简介
王鑫(1980-),男,甘肃庆阳人,高级工程师,主要从事铁路施工方面的工作,E-mail:418806378@qq.com。
