西安香槐六路瀟河桥钢桁梁结构型式比较研究

香槐六路漏河大桥是一座城市主干道双层特大桥,主桥采用六跨57.5 m+71 m+120 m+120 m+70 m+57.5 m变高连续钢桁梁结构,桥梁采用双层桥面,上层桥面为机动车道,宽度25 m,下层桥面为人行通道,宽度11 mo该桥具有大跨度、宽桁架、变高连续、双层桥面等特点,主要介绍桥梁设计方案的比选经过,最终确定采用双层变高连续钢桁连续梁结构,该方案结构可靠、功能适用、构造简洁,为今后类似桥梁的方案设计提供借鉴和参考。

Comparison and Study on Steel Truss Beam Structure of Bahe River Bridge in Xianghuai Road Ⅵ of Xian

Bahe River Bridge in Xianghuai Road VI is a large double-deck bridge in an urban main road.The main bridge adopts the six-span 57.5 m+71 m+120 m+120 m+70 m+57.5 m variable height continuous steel truss girder structure.The bridge adopts the double decks.The upper deck is a motor vehicle lane with a width of 25 m,and the lower deck of is a pedestrian path with a width of 11 m.This bridge has the characteristics of long span,wide truss,variable height continuous and double decks.This paper mainly introduces the comparison and selection of bridge design schemes and finally determines the application of double-deck variable height continuous steel truss girder structure.This scheme has the features of reliable structure,useful function and simple construction,which provide the references for the scheme design of the similar bridges.