铁道标准设计Issue(1)：27-33,7.DOI:10.13238/j.issn.1004-2954.2016.01.006
地震作用下高速铁路FPS隔震桥梁无砟轨道力学特性参数研究
Parametric Study of Mechanical Performances of Ballastless Track on High-speed Railway Bridge Isolated with FPS during Earthquake
摘要
Abstract
To analyze accurately longitudinal dynamics performances of the ballastless track on high-speed railway bridge isolated with FPS during earthquake, an integrated model for CRTSⅡ slab ballastless track is established based on a typical simply supported girder bridge ( SSGB ); The model is used to analyze the longitudinal mechanical performances of ballastless track and investigate the influence of parameters with nonlinear time-history analysis method. The results show that the longitudinal forces of the track at the end of beam is greater than the track at the middle of the beam during earthquake; the design of sliding layer and shear alveolar may reduce the longitudinal interaction between beam and track, longitudinal connected track may disperse the longitudinal forces from the beam to reduce the longitudinal forces of CA mortar and fastenings;Such factors as frictional coefficient and radius of FPS, frictional coefficient of sliding layer, stiffness of shear alveolar impose great effect on longitudinal forces of track. In order to prevent damage of track, the effect of parameters should be comprehensively considered to minimize longitudinal forces of track while normal operation of high-speed railway is guaranteed.关键词
高速铁路/地震反应/CRTS Ⅱ型板式无砟轨道/FPS/力学特性Key words
High-speed railway/Seismic response/CRTSⅡ slab ballastless track/FPS/Mechanical characteristics分类
交通工程引用本文复制引用
黄宇辰,王军文,王少君..地震作用下高速铁路FPS隔震桥梁无砟轨道力学特性参数研究[J].铁道标准设计,2016,(1):27-33,7.基金项目
河北省自然科学基金项目(E2015210038) （E2015210038）
