摘要
作为一种新型的减振轨道,梯形轨枕轨道已在国内的城市轨道交通中有所应用。该文介绍了在北京地铁五号线高架桥梯形轨枕轨道试验段进行的一系列现场试验,以及为验证其减振特性进行的室内试验。通过对轨道不平顺进行测量,并测试了当列车分别运行在梯形轨枕轨道和普通无碴板式轨道上时钢轨、轨枕和桥面的振动响应,该文对测试数据在时域和频域进行了分析。实验结果表明:与普通无碴板式轨道相比,梯形轨枕轨道具有更好的减振性能。
Ladder track is a new type of vibration-reduction track system that has been applied to several urban railways in China.A series of experiments were carried out on the ladder track installed on the trial section of an elevated bridge on the Beijing Metro Line 5.The vibration transmission behaviours of the track were tested in the lab.The track irregularities were measured and the dynamic responses were measured of rails,sleepers and bridge deck when the train running on the ladder track and the common non-ballasted slab track.The data were analyzed in the time domain and the frequency domain.The experimental results show that： compared with common non-ballasted track,the ladder track has good vibration reduction characteristics.
出处
《工程力学》
EI
CSCD
北大核心
2011年第3期49-54,共6页
Engineering Mechanics
基金
国家自然科学基金重点项目(50538010)
北京市自然科学基金项目(8082021)
比利时-中国政府间合作项目(BIL07/07)
关键词
城市轨道交通
高架桥
梯形轨枕轨道
试验
轨道不平顺
减振
rail transit
elevated bridge
ladder track
experiment
track irregularity
vibration reduction
