| 温度梯度作用下板式无砟道岔岔区板力学特性分析 |
| |
| 引用本文： | 唐进锋,尹华拓,曾志平,唐长根.温度梯度作用下板式无砟道岔岔区板力学特性分析[J].铁道科学与工程学报,2011,8(1):24-28. |
| |
| 作者姓名： | 唐进锋 尹华拓 曾志平 唐长根 |
| |
| 作者单位： | 中南大学土木建筑学院,湖南,长沙,410075 |
| |
| 基金项目： | 国家自然科学基金资助项目(50908236); 湖南省自然科学基金资助项目(09JJ4022); 高等学校博士学科点专项科研基金资助课题(20090162120038); 中国博士后科学基金特别资助项目(201003521) |
| |
| 摘 要： | 采用有限单元方法,建立了道岔区板式无砟轨道温度力的计算模型,结合热分析及结构分析,对道岔板进行温度梯度荷载作用下的翘曲分析,并对底座板弹性模量、底座板厚度、道岔板厚度、道岔板宽度的变化对道岔板纵向应力和位移的影响规律进行了分析.研究表明:道岔区板式无砟轨道的温度力和位移受底座板弹性模量变化的影响较大,道岔板厚度对结构受...
|
| 关 键 词： | 高速铁路 板式无砟轨道 道岔 有限单元法 |
Mechanical characteristic of slab track on switch area under temperature gradient |
| |
| TANG Jin-feng
,
YIN Hua-tuo
,
ZENG Zhi-ping
,
TANG Chang-gen.Mechanical characteristic of slab track on switch area under temperature gradient[J].Journal of Railway Science and Engineering,2011,8(1):24-28. |
| |
| Authors: | TANG Jin-feng YIN Hua-tuo ZENG Zhi-ping TANG Chang-gen |
| |
| Affiliation: | TANG Jin-feng,YIN Hua-tuo,ZENG Zhi-ping,TANG Chang-gen(College of Civil and Architectural Engineering,Central South University,Changsha 410075,China) |
| |
| Abstract: | With the help of Finite Element Method,the model of slab track on switch area under temperature stress was established.Integrating thermal analysis with structural analysis,this paper described the switch board warping under temperature gradient.The law of main material parameters affecting on mechannic characteristic of slab track on switch area were also analyzed,such as the elastic modulus of base plate,the thickness of the base plate,the thickness and width of turnout slab.Results show that the temperat... |
| |
| Keywords: | high-speed railway slab track turnout finite element method |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
