连续钢箱梁桥面铺装层结构应力分析  

Stress analysis of deck pavement of continuous steel box girder

作　　者：李国芬[1] 曹牧[1] 王宏畅[1] 朱华平[1] 

机构地区：[1]南京林业大学土木工程学院,南京210037

出　　处：《中国工程科学》2013年第8期79-83,共5页Strategic Study of CAE

基　　金：住房和城乡建设部科技项目(2012-K4-21)

摘　　要：正交异性钢桥面的构造复杂,用理论算法对铺装层进行力学计算,较难得到精确的计算结果。本文利用有限元通用软件对曲线钢箱梁桥浇筑式沥青铺装层进行受力分析,将正交异性钢桥面板、铺装层作为整体,建立有限元模型,研究铺装层受力变形特点。根据钢桥面铺装层常出现的病害,并结合超载及刹车产生的水平荷载对铺装层受力的影响,提出相应的桥面铺装层破坏的综合控制指标。The geometric structure of steel deck plates is complex. So it is difficult to get precise results in the mechanics calculation of deck pavement with traditional methods. This paper adopts the finite element meth- od for the mechanics analysis of the composite guss asphalt surfacing layer of curved steel box girder bridges. By taking the orthotropic steel deck and the pavement as a whole, a reasonable finite element model which estab- lished can be used to study the stress and deformation features of the surfacing layer. According to the common diseases in steel deck pavements and the effect of the overload and the horizontal load in braking to the pave- ment, this paper puts forward the comprehensive control indicators for pavement failures.

关 键 词：桥面铺装 曲线钢箱梁 铺装层开裂 粘结滑移 应力应变特性 

分 类 号：TU745.2[建筑科学—建筑技术科学]