2011年5月上第40卷第340期
施工技术
CONSTRUCTION TECHNOLOGY
杭州九堡大桥多跨连续组合拱桥
步履式整体顶推技术
蒙
周光强，向剑，舒大勇申
（中交第二航务工程局有限公司湖北武汉430040）
[摘要］杭州九堡大桥主桥为3×210m连续组合梁-钢拱拱桥桥宽37.7m总重14000多1.施工中首次采用整体顶推施工技术210m主跨中间仅设置1座临时墩，具有顶推跨径大、悬臀长、重心高及质量大等特点施工中采用自主研发的步履式平移顶推装置及计算机同步控制系统，完全满足组合拱桥梁顶整体受力顶推的要求，重点对“步履式平移顶推"工艺关键技术进行了介绍对顶推控制方法进行说明同时对多跨组合拱桥大悬臀顶推中出现的问题进行总结分析，
【关键词】杭州九堡大桥：组合拱桥：整体顶推；步履式平移顶推装置；计算机同步控制系统
[中图分类号】U445
[文献标识码】A
[文章编号】1002-8498(2011) 09-0027-05
HydraulicWalkingIntegralPushingTechnologyofMulti-span ContinuousCompositeArchBridgeinHangzhouJiubaoBridge
Zhou Guangqiang ,Xiang Jian,Shu Dayong ,Shen Meng( CCCC Second Harbour Engineering Co. , Lad. , Wuhan , Habei430040 , China)
Abstract: The main bridge of Hangzhou Jiubao Bridge is 3 × 210m continuous girder-arch composite bridge , 37. 7 meters in width and about 14 000 tons in weight. During the bridge construction , integral eds e r pi as s ard erodanro o e padpe s rooan ed bridge construction has some characteristics of large pushing span distance , and long cantilever , high center of gravity and heavy weight. The self-research hydraulic walking translation and pushing equipment and computer synchronous control system are used during the bridge construction , which can satisfy the requirement on push force in composite girder-arch construction. The authors mainly introduce the key construction technologies of the hydraulic walking integral pushing technology , show the pushing control methods , and summarize and analyze the problems occurred in large cantilever member pushing of the bridge.
translation and pushing equipment; computer synchronous control system
随着桥梁建设事业的飞速发展顶推技术不断更新进步其具有占地少、不影响交通、质量稳定、施工安全和成本低廉等优点,在中等跨径架桥工艺中具有很强的竞争力。但是已经建成的顶推桥主要为中小跨径PC连续梁桥，虽然近年来在简支梁桥，拱桥和斜拉桥架桥工艺中也得到成功应用但是顶推工艺仍采用老的拖拉式顶推设备零散自动化程
[收稿日期］2010-09-27
[基金项目】浙江省科技计划项目（2009C11102）
[作者简介］周光强，中交第二航务工程局有限公司高级工程师，杭州市江干区九堡镇杨公村九堡大桥310019电话：（0571)2811369，
E-mail:zgq02126@126.com 万方数据
27
度极低计算机控制技术基本没得到应用。2004年底法国米约世界第1高桥采用楔进式顶推装置完成斜拉桥顶推施工，使顶推技术在其他桥型的应用和顶推设备得到进一步发展
杭州九堡大桥采用3跨组合拱桥带拱整体顶推
施工工艺打破了拱桥先顶推梁后安装拱肋的常规方法在顶推受力理念上得到很大提升在同类桥型施工过程中国内外尚属首例。主跨210m中间仅设置1座临时墩具有顶推跨径大、悬臂长、重心高及质量大等特点研发的步履式平移顶推装置及计算机同步控制系统完全满足组合拱桥顶整体受力顶推的要求，