铁道科学与工程学报2011，Vol.8Issue(4)：7-13,7.
重载既有线路桥过渡段动力响应特性分析
Study on the dynamic responses and exchange-filling strengthening measures in embankment-bridge transition sections of existing heavy railway
摘要
Abstract
Combined with the practice of Shuo - Huang Railway roadbed - bridge transition section, vehicle -railway analysis model was established on the basis of finite element theory and infinite element theory, and this model was verified by measured data. On the basis of measured track irregularities, dynamic responses law of C80 freight car passing roadbed -bridge transition section were analyzed. The calculated results show that; track irregularities induced by the operation of roadbed - bridge transition section have great effect on vehicle vibration acceleration and wheel -rail force. The wheel -rail force was close to 221 kN, approaching the permissible limits. The dynamic stress and dynamic deformation of A, B group filler trend to coincide with that of C group filler under the depth of 3m of roadbed, so the A, B group filler can be considered to be used above 3m in the roadbed of transition sections which using C group filler.关键词
重载铁路/路桥过渡段/有限元/无限元/动力特性Key words
heavy haul railway/embankment -bridge transition section/finite element/infinite element/dynamic character分类
交通工程引用本文复制引用
彭修乾,时瑾..重载既有线路桥过渡段动力响应特性分析[J].铁道科学与工程学报,2011,8(4):7-13,7.基金项目
神华集团科技创新项目((SHGF-06-16) （(SHGF-06-16）
国家自然科学基金资助项目(51008018) （51008018）
