客货共线铁路列车荷载图式探讨  

Discussion on Train Load Diagrams of Mixed Passenger and Freight Railway in China

作　　者：罗锦章 LUO Jinzhang(Railway Track and Electrical Detection Office,China Railway Zhengzhou Bureau Group Co.Ltd.,Zhengzhou 450052,China)

机构地区：[1]中国铁路郑州局集团有限公司工电检测所,郑州450052

出　　处：《铁道建筑》2021年第1期12-14,共3页Railway Engineering

摘　　要：TB/T 3466—2016《铁路列车荷载图式》中客货共线荷载比中-活载在中、大跨度桥梁上的荷载效应有一定的提升,对小跨度桥涵及桥梁中局部杆件的荷载效应并没有明显的改善。将客货共线铁路特种荷载图式中的集中荷载调整为280 kN,间距调整为1.6 m,就能解决小跨度桥涵荷载储备不足的问题,也使得特种荷载图式中的集中荷载间距与高速铁路、城际铁路保持一致,从而可以将高速、城际、客货共线、重载铁路荷载统一为新"中"荷载。In TB/T 3466—2016 Code for Railway Train Load Diagrams,the load effect of mixed passenger and freight load on medium and large span bridges is improved to a certain extent compared with that of China-live load,but the load effect of small span bridges and culverts and local members in bridges is not improved obviously.By adjusting the concentrated load to 280 kN and the spacing to 1.6 m in the special load diagram of mixed passenger and freight railway,the problem of insufficient load reserve of small span bridges and culverts can be solved,and the concentrated load spacing in the special load diagram is consistent with that of high speed railway and intercity railway,so that the loads of high speed railway,intercity railway,mixed passenger and freight railway and heavy haul railway can be unified into a new"China"load.

关 键 词：铁路桥梁 高速铁路 城际铁路 客货共线铁路 重载铁路 标准 列车荷载图式 

分 类 号：U441.2[建筑科学—桥梁与隧道工程]