呼和浩特铁路局桥梁对客货混运重载运输的适应性分析  

Analysis on Adaptability of Bridges Belong to Hohhot Bureau to Heavy Haul Transport on Railway of Mixed Passenger and Freight

作　　者：孟小平 MENG Xiaoping(Chinese Railway Corporation, Beijing 100844, China)

机构地区：[1]中国铁路总公司,北京100844

出　　处：《铁道建筑》2016年第9期19-22,30,共5页Railway Engineering

摘　　要：呼和浩特铁路局管辖范围内的桥梁修建年代较早,建设时间跨度大,设计和建设标准不统一。经过长期使用,特别是随着近年来万吨重载列车的开行和客运列车的提速,列车对桥梁的动力作用明显增大,桥梁结构出现了梁体横向振幅超限等问题。通过对大包、包兰线不同类型典型桥梁的动态测试,并结合日常静态检查结果,对桥梁的长期适应性进行了综合分析,并提出强化处理对策和建议。The bridges of Hohhot Railway Bureau were constructed early and had experienced a long time,which resulted that the design and construction standard were not consistent.Because of long time operation especially the running of heavy haul freight with 10 000 t load and the increase of train speed,the dynamic effect of train on bridges was obviously increased,which resulted problems such as the gird transverse amplitude exceeding limited values and so on.By dynamic tests of typical bridges on Datong-Baotou railway and Baotou-Lanzhou railway,combing the results of daily static checks,the adaptability of bridges to heavy haul transport was comprehensively analyzed,and bridge strengthening measurements and suggestions were put forward.

关 键 词：桥梁 重载运输 适应性分析 

分 类 号：U441.2[建筑科学—桥梁与隧道工程]