铁道标准设计Issue(5)：5-7,8,4.DOI:10.1e2e8/j.issn.1004-2954.2014.05.002
CRTSI型板式无砟轨道CA砂浆疲劳寿命分析
Analysis on Fatigue Life of CA Mortar Used in CRTS-I Slab Ballastless Track
摘要
Abstract
According to the structural and mechanical characteristics of CRTS-I slab ballastless track, the rail was assumed to be a beam discretely supported at points, the fastener and foundation's elasticity was assumed as springs, the track slab, CA mortar and base slab were respectively assumed as solid object. Then the finite element model of CRTS-I track slab was established. On the basis of Palmgren-Miner linear cumulative fatigue damage criterion, the life-cycle analysis method was utilized to analyze the fatigue lives of CA mortar under different train loads. Eventually, the CA mortar layer's fatigue life distribution and fatigue life values at dangerous points were acquired.关键词
CRTSI型板式无砟轨道/CA砂浆/疲劳Key words
CTRS-I slab ballastless track/CA mortar/fatigue分类
交通工程引用本文复制引用
刘观,胡佳,杜华杨,赵坪锐..CRTSI型板式无砟轨道CA砂浆疲劳寿命分析[J].铁道标准设计,2014,(5):5-7,8,4.基金项目
国家自然科学基金(51008258) （51008258）
