摘要
以合肥市北二环高架桥梁为例,介绍了城市快速路中桥梁方案的比选设计。从高架桥结构体系、标准跨径、联长、主梁外形等方面,阐述了高架桥常规段上部结构的选择。对于保通要求高的跨交口桥梁方案,从受力性能、施工方案、工程造价等方面,对变高度混凝土连续梁、钢-混凝土组合梁、钢箱连续梁进行了方案比选。从用地、景观协调、施工难度等角度对花瓶形门式框架墩、双柱形门式框架墩、简洁柱式墩进行了比选。
Taking the North 2nd Ring Viaduct in Hefei as an example,the selective design of bridge schemes in urban expressway is introduced.Selection of upper structure of conventional section of viaduct is elaborated from aspects of structure system,standard span,length,shape of main girder,etc..For the bridge schemes with high traffic requirements,the schemes of variable height concrete continuous beam,steel-concrete composite beam and steel box continuous beam are compared from the aspects of force performance,construction scheme and project cost.The vase-shaped portal frame pier,double-column portal frame pier and simple column pier are compared from the aspects of land use,landscape coordination and construction difficulty.
作者
孙蕾
Sun Lei(Hefei Urban Planning&Design Institute,Hefei 230001,China)
出处
《山西建筑》
2023年第11期157-160,共4页
Shanxi Architecture
