中南大学学报（自然科学版）2017，Vol.48Issue(6)：1674-1681,8.DOI:10.11817/j.issn.1672-7207.2017.06.035
简支梁桥线形变化对轻轨列车单双线运行性的影响及差异
Effect of girder deformation of simply supported beam bridges on running properties of single and double track light-rail train and the difference
摘要
Abstract
Based on dynamic analysis theory on train-track-bridges system,for one city light-rail project,a 3-D nonlinear dynamic analysis finite element model of light-rail train-track-bridges system with considering the girder deformation of simply supported beam bridge was established by using commercial software ANSYS and APDL language.The influence of pier settlement,the deflection/camber of girder on the run performance of single-track and double-track light rail train was studied.The results show that the model is efficient,stable,reliable,visible and the bridge mid-span vertical displacement response in the intersection area of the train is about two times that of a single-track.The offload factor has no significant changes as compared with single-track,while the vehicle maximum acceleration and Sperling index have a slight increase compared with the single-track.Running speed is the most important factors that affect the light-rail train running safety,followed by the girder deformation,while the minimum is the operating mode.The light-rail train running smoothly deteriorated with vehicle speed increases,and compared with the maximum acceleration of the vehicle body,there is better discrimination of the effect of Sperling index on single-track and double-track operation modes.关键词
桥墩沉降/梁体下挠/上拱/轻轨列车/运行安全性/运行平稳性/相互作用系统Key words
pier settlement/girder deflection/camber/light-rail train/running safety/ride comfort/interaction system分类
交通工程引用本文复制引用
王少杰,徐赵东,李舒,李红伟,Shirley J.Dyke..简支梁桥线形变化对轻轨列车单双线运行性的影响及差异[J].中南大学学报（自然科学版）,2017,48(6):1674-1681,8.基金项目
国家中青年科技创新领军人才支持计划项目(2016) （2016）
江苏省自然科学基金资助项目(BK20151092) （BK20151092）
江苏省普通高校研究生科研创新计划项目(CXLX13_102) （CXLX13_102）
中央高校基本科研业务费专项资金资助项目(3205004907)(Project(2016) supported by the National Youth Science and Technology Innovation Talents Program,China （3205004907）
Project (BK20151092) supported by the National Natural Science Foundation of Jiangsu Province,China （BK20151092）
Project (CXLX13_102) supported by the Graduate Researcher and Innovation Plan Project for the Regular Institution of Higher Learning in Jiangsu Province （CXLX13_102）
Project (3205004907) supported by Fundamental Research Funds for the Central Universities,China) （3205004907）
