铁道科学与工程学报2016，Vol.13Issue(11)：2107-2114,8.
基于极限状态法的宽轨距C RTSⅢ型板式无砟轨道配筋研究
The reinforce ment design of CRTS Ⅲ slab ballastless track with track gauge widening which was based on li mi-state method
摘要
Abstract
For the study on the adaptability of CRTS Ⅲslab ballastless track,the shell model was established to simulate CRTS Ⅲslab ballastless track with track gauge widening in this paper.When the track slab and the self-compacting concrete have strong bond,it was equivalent to the single-layer composite slab.Otherwise,it was equivalent to a double composited slab.The limit state method was adopted to the reinforcement design of the track under different loads (Vertical load of train,lateral load,temperature gradient and uneven settlement of foundation)for the first time on the roadbed and bridge.According to the basic combination and accidental com-bination of load,the most unfavorable internal force of the track slab was calculated.The stress of reinforced con-crete,the ratio of reinforcement,the depth of compressive zone,crack width and carrying capacity were checked.Besides,the temporary strength calculation of slab was carried out in transportation,hoisting,construc-tion and maintenance.The results of calculation meet the requirements of design.It provides technical support for the adaptability of CRTS Ⅲ slab ballastless track.关键词
CRTSⅢ型板式无砟轨道/复合板/极限状态法/宽轨距/强度检算Key words
CRTS Ⅲ slab ballastless track/composite plate/limit state method/track gauge widening/strength calculation分类
交通工程引用本文复制引用
苏乾坤,杨荣山,南雄,栗行..基于极限状态法的宽轨距C RTSⅢ型板式无砟轨道配筋研究[J].铁道科学与工程学报,2016,13(11):2107-2114,8.基金项目
国家自然科学基金资助项目 （）
