摘要
福平铁路平潭海峡公铁两用大桥位于东南沿海季风气候区,容易出现大风天气。接触网是牵引供电系统的薄弱环节,接触线在风载作用下可能发生横向偏移,严重时将影响弓网系统安全稳定运行。基于平潭海峡公铁两用大桥在不同风速下的接触网实测数据,采用数据对比及数据拟合的方式,对接触网的抗风性能进行分析,结合线路参数研究定位点处、跨中位置接触线横向偏移值的最大值,对比风偏理论值与实测值的差异;根据接触网实测数据,分析接触线跨中及定位点在不同风速下的横向偏移量及其差值,明确接触网容易受到风载作用影响的位置,为运营维护提供有效指导。
Pingtan Straits Rail-cum-Road Bridge is located in the southeast coastal monsoon climate area,which is susceptible to strong wind.OCS is a weak link of the traction power supply system,and the contact wire may cause lateral deviation under wind load,which will affect the safe and stable operation of the pantograph-catenary system in severe cases.Based on the measured data of OCS of Pingtan Straits Rail-cum-Road Bridge at different wind speeds,this paper analyzes the wind-resistant performance of OCS by means of data comparison and data fitting,and in combination with line parameters,it studies the maximum lateral deviation value of contact wire at the positioning point and midspan position,and compares the difference between the theoretical value of wind deviation and the measured value;according to the measured data of OCS,it analyzes the lateral deviation and difference of the midspan and positioning points of contact wire at different wind speeds,identifies the locations where the OCS is susceptible to wind load,and provides effective guidance for operation and maintenance.
作者
敖晓峰
AO Xiaofeng(Power Supply Department,China Railway Nanchang Group Co Ltd,Nanchang Jiangxi 330001,China)
出处
《中国铁路》
2021年第12期87-91,共5页
China Railway
关键词
平潭海峡公铁两用大桥
接触网
拉出值
风偏
抗风性能
Pingtan Straits Rail-cum-Road Bridge
OCS
stagger
wind deflection
wind-resistant performance
