滨州黄河公路大桥桥面铺装设计与施工  

Binzhou Yellow River Highway Bridge Deck Pavement Design and Construction

作　　者：王立勇[1] 钟原[1] 李君[1] 

机构地区：[1]滨州市公路管理局,山东滨州256612

出　　处：《公路交通科技》2005年第8期74-77,94,共5页Journal of Highway and Transportation Research and Development

摘　　要：将桥面板、横隔板、直腹板和沥青混合料铺装层作为统一的力学分析模型,采用三维有限元法对桥面铺装的铺装层内部拉应力、层间剪应力以及其表面的最大竖向位移进行计算,分析滨州黄河公路大桥桥面铺装体系的力学特性和应力变化规律,模型分析结果表明:防水结合层对于桥面铺装最为重要,在沥青混合料中加入增强纤维能显著增加结构的疲劳寿命,并对疲劳寿命最长的组合提出了建议。This paper presented a mechanical analysis model for integrated structure of bridge deck, transverse rib, vertical web and bitumen mixture pavement, by use of three-dimensional finite element method, to calculate the internal tensile stress, interlayer shear stress, and the surface maximum vertical displacement, and to analyze the mechanical characteristics of the bridge deck pavement structure and the stress development pattern. The model analysis results show that the waterproof bond layer is the most important for the deck pavement, and that fiber reinforcement added in bittunen mixture may greatly enhance the fatigue life, and optimal combination of the deck pavement structure with longest fatigue life is recommended.

关 键 词：桥面铺装 力学机理 材料性能 设计 施工 

分 类 号：U443.33[建筑科学—桥梁与隧道工程]