温度作用对CRTSⅡ型无砟轨道结构体系的影响及损伤分析

Analysis of Effects and Damage of CRTSⅡ Ballastless Track Structure System Induced by Temperature

研究了CRTSⅡ型板式无砟轨道结构体系温度作用影响并进行损伤分析。采用ABAQUS有限元软件建立了路基上的CRTSⅡ型板式无砟轨道结构有限元分析模型,对温度作用下CRTSⅡ型无砟轨道结构的力学响应、影响因素及可能发生的损伤进行了分析,并提出相应的技术措施以改善温度作用对结构造成的不利影响。

The damages of CRTSⅡ type slab ballastless tracks under temperature effect and its influence factors were researched.By means of finite element analytic software ABAQUS,the finite element analytical model of the CRTSⅡ slab ballastless track structure on soil subgrade was established.The mechanical behavior of CRTSⅡ type slab ballastless track under the effect of temperature was analyzed and its influencing factors were discussed.According to the analysis results,corresponding suggestions and measurements are proposed to improve the adverse effect caused by temperature load on the structure of CRTSⅡ slab ballastless track.