贵阳环城高速公路花溪大桥设计  

Design for Huaxi Bridge in Highway around Guiyang City

作　　者：金令[1] 

机构地区：[1]中铁工程设计咨询集团有限公司,北京100055

出　　处：《铁道标准设计》2012年第7期82-86,107,共6页Railway Standard Design

摘　　要：花溪大桥为贵阳环城高速公路南环线跨越花溪水库的一座特大型桥梁,主桥为192 m的中承式钢管混凝土拱桥,大桥全宽29.3 m(双向四车道+人行道),设计速度100 km/h,是全线重点桥梁和控制性工程。介绍该桥的总体设计情况,包括桥式选择、设计参数、构造细节、施工方法。根据桥址处的条件大桥在贵州地区首次采用了三角形空间桁架拱、挖井基础、自密实钢管混凝土等技术,对多山岩溶地区同类型桥梁建设具有参考意义。Huaxi Bridge is a super large bridge across above Huaxi reservoir in the south line of Guiyang City Highway.The main bridge,which is a 192m half-through concrete-filled steel tube arch bridge with 29.3m in full width(bi-direction four lanes plus sidewalks) and 100km/h design speed,is the key bridge and controlling project of the whole line.The author illustrates the general design situation of the bridge,including bridge-type selection,design parameters,structure details and construction methods.According to the situations at the bridge site,Huaxi Bridge is the first bridge using the technologies such as triangular space truss arch,cutting caisson foundation,self-compacting concrete-filled steel tube in Guizhou region,which can give some references for the same type of bridge constructions in mountainous karst area.

关 键 词：公路桥 拱桥 三角形空间桁架 挖井基础 自密实钢管混凝土 结合梁 设计 

分 类 号：U44[建筑科学—桥梁与隧道工程]