桥上弹性支承块式无砟轨道垂向刚度研究  

Research on the vertical stiffness of low vibration track on bridge

作　　者：范志材[1] 唐进锋[1] 耿文杰[1] 

机构地区：[1]中南大学土木建筑学院

出　　处：《山西建筑》2011年第23期136-138,共3页Shanxi Architecture

摘　　要：利用通用有限元软件ANSYS的APDL参数化建模技术,建立桥上弹性支承块无砟轨道模型。利用ANSYS的模态分析功能,分别计算块下刚度不变而轨下刚度变化和轨下刚度不变而块下刚度变化两种情况下模型频率,并分析频率的变化规律,得出一定的结论。The low vibration track on bridge model is established through the APDL parametric modeling technology of ANSYS finite element software.Utilizing the model analysis function,calculated the model frequency respectively both when the stiffness under the concrete block unchanged but the stiffness under the rail changed and when the stiffness under the concrete block changed but the stiffness under the rail unchanged.Analysising and comparing the variations of frequency and draw some conclusions.

关 键 词：桥梁 弹性支承块 刚度 频率 

分 类 号：U213.244[交通运输工程—道路与铁道工程]