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动态荷载下刚柔复合路面结构变形和应力分析
引用本文:毛菊良,侯芸,郭忠印.动态荷载下刚柔复合路面结构变形和应力分析[J].同济大学学报(自然科学版),2004,32(10):1403-1407.
作者姓名:毛菊良  侯芸  郭忠印
作者单位:同济大学,道路与交通工程教育部重点实验室,上海,200092
摘    要:采用温克勒地基上跨接缝复合路面结构的三维有限元模型 ,分析了动力荷载下复合路面系统的最大变形和应力特性 ,比较了路表面纵向和横向上路面系统变形盆的差异 .并通过对接缝区不同层位的应力的比较分析 ,认为表面上反复竖向拉应力 (动态剪切 )是造成接缝区破损的主要原因

关 键 词:刚柔复合路面  三维  有限元动力分析  动态弯沉差  动态剪切
文章编号:0253-374X(2004)10-1403-05

Three Dimensional Finite Element Dynamic Analysis of Stiff-flexible Bonding Pavement
MAO Ju-liang,HOU Yun,GUO Zhong-yin.Three Dimensional Finite Element Dynamic Analysis of Stiff-flexible Bonding Pavement[J].Journal of Tongji University(Natural Science),2004,32(10):1403-1407.
Authors:MAO Ju-liang  HOU Yun  GUO Zhong-yin
Abstract:A three dimensional finite element model of stiff-flexible bonding pavement with joint lying on wenkel subgrade is used to obtain dynamic properties and behaviour of pavement system.Max deflection and stress state of pavement system subjected to dynamic load is got and difference of deflection basin along transverse direction and longitudinal direction is compared.On the basis of analysis of stress state of different point,the conclusion that repeated dynamic shear is major reason resulted in surface damage of joint zone is drawn.
Keywords:stiff-flexible bonding pavement  three-dimensional (3D)  finite-element dynamic analysis  dynamic deflection difference  repeated dynamic shear  
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