地震工程学报2017，Vol.39Issue(5)：820-828,852,10.DOI:10.3969/j.issn.1000-0844.2017.05.0820
铁路大跨度简支钢桁梁桥车-桥耦合振动研究
Train-bridge Coupled Vibration Analysis of a Large-span Simply-supported Steel-truss Railway Bridge
摘要
Abstract
Over recent years,high-speed and heavy-load railways have developed in China.For a railway line,bridges are very important hubs along the line.Studies on the interaction between trains and bridges are very important for safe railway operations,especially for problems regarding the train-bridge coupled vibration of simply-supported steel-truss railway bridges,which have been widely used in recent years.In this paper,a 156-m-long simply-supported steel-truss bridge of the Huang Han-hou New Yellow River railway was studied.Numerical simulation using ANSYS and UM software is used together to study the train-bridge coupled vibration problems when a single locomotive,marshaling passenger coach,and freight coach pass the bridge.The results show that the lateral stiffness of the large-span steel truss bridge is relatively small.The dynamic response parameters of the train and bridge all fell within the allowable limits when the different marshaling passenger coaches pass the bridge with the design speed.Compared with conditions of a single locomotive and marshaling passenger coach,the lateral and vertical accelerations of the bridge are obviously greater when the marshaling freight coaches pass.关键词
大跨度钢桁梁桥/车-桥耦合/振动分析/数值模拟Key words
the long span steel truss bridge/train-bridge coupled vibration/dynamic response/numerical simulation分类
交通工程引用本文复制引用
陈敦,王根会,穆彦虎,彭惠..铁路大跨度简支钢桁梁桥车-桥耦合振动研究[J].地震工程学报,2017,39(5):820-828,852,10.基金项目
国家自然科学基金(41401077,41630636) （41401077,41630636）
中国科学院西部之光“西部博士”项目(51Y351211) （51Y351211）
