大跨径桩板式道路上下部合理结构选型研究  

Research on Reasonable Selection of Upper and Lower Structure for Large-span Pile-plate Road

作　　者：王传宝 WANG Chuanbao(Anhui Transportation Holding Group Co.,Ltd.,Hefei 230000,Anhui,China)

机构地区：[1]安徽省交通控股集团有限公司,安徽合肥230000

出　　处：《工程技术研究》2024年第11期186-188,共3页Engineering and Technological Research

摘　　要：文章对比分析双T梁截面,T梁截面及组合型截面三种上部结构形式,从受力性能、经济性以及施工便利性方面综合考虑,得出上部最优结构形式,并提出4根φ600 mm墩柱、3根φ800 mm墩柱与3根φ600 mm墩柱三种下部结构方案,分析其变形大小和受力性能。结果表明,三种上部结构均满足规范要求,双T梁与T梁在经济性与施工便利性方面优于组合型截面,双T梁较T梁截面受力更优;下部三种结构形式均满足承载力要求,但φ800 mm墩柱结构受外力变形最小,承载力更大。This paper compares and analyzes three kinds of upper structure forms of double T-beam section,T-beam section and combined section.From the aspects of mechanical performance,economy and construction convenience,the optimal upper structure form is obtained.Three lower structure schemes are proposed,namely fourφ600 mm pier columns,threeφ800 mm pier columns,and threeφ600 mm pier columns,and their deformation size and mechanical performance are analyzed.The results show that three types of upper structures meet the requirements of the specifications.The double T-beam section and the T-beam section are superior to the combined section in terms of economy and construction convenience,and the double T-beam section has better mechanical performance than T beam section.Three structural forms of the lower part all meet the requirements of bearing capacity,but theφ800 mm pier column structure has the smallest deformation under external force and the larger bearing capacity.

关 键 词：桩板式道路 上下部结构 结构选型 

分 类 号：U412.3[交通运输工程—道路与铁道工程]