广清高速公路桥梁空心板拼宽方案受力分析  

Force Analysis of Bridge Width-splicing of Guangzhou-Qingyuan Freeway

作　　者：许应礼 

机构地区：[1]武汉市江夏区公路运输管理局,武汉430200

出　　处：《交通科技》2016年第2期68-71,共4页Transportation Science & Technology

摘　　要：广(州)清(远)高速公路实施改扩建,其桥梁段相应也要拓宽。文中阐述了空心板桥梁拼宽原则,提出了桥梁拼宽方案及计算参数。以新华高架桥连续3跨16m预应力混凝土空心板为例,对不同拼宽方案建立有限元模型,并进行结构内力计算和性能对比分析,最后推荐桥梁拼宽采用独柱墩+盖梁刚接+桩顶设系梁方案。Based on reconstruction and expansion of Guangzhou-Qingyuan freeway,the principle of bridge width-splicing of GuangQing highway is expounded,and the scheme and the calculation parameters are discussed.Taking the Xinhua Viaduct,a hollow slab bridge of 16 mprestressed concrete with3 spans as an example,a finite element model is set up to calculate the force of structure and discuss the properties.The result shows that the scheme of single column pier,rigid connection of coping,and setting tie beam on the top of the pile is feasibility.

关 键 词：广清高速 桥梁 拼宽 独柱墩 

分 类 号：U416.217[交通运输工程—道路与铁道工程]