云南元磨高速公路箱形拱桥预制吊装施工简介  

Brief Introduction of Prefabrication and Lifting Process for Box Type Arch Bridge in Yuanmo Expressway,Yunnan

作　　者：潘伟宏 

机构地区：[1]广西壮族自治区公路桥梁工程总公司第二工程处,广西南宁530001

出　　处：《西部交通科技》2006年第3期35-37,共3页Western China Communications Science & Technology

摘　　要：K291+959箱形拱特大桥位于云南元磨高速公路中地形最复杂的地段,跨越一个V形山谷,桥面距谷底高差超过了80m,大桥两头地形陡峭,难以满足预制施工对场地的要求,如何解决利用有限场地的预制工艺及满足进度要求的吊装方案是该桥施工的关键所在,文章就该桥如何利用吊装施工作出了研究分析。The box type great arch bridge at K291+959 is located in the topographically complex section in Yuanmo Expressway,Yunnan.It crosses over a V shape mountain valley with over 80 m height difference between the bridge deck and the valley bottom.The two ends of bridge are located in steep terrain,which can not satisfy the space demaod of prefabrication.The article conducts a study to analyze the lifting method for the captioned bridge.

关 键 词：大桥 箱形拱 预制 拱箱吊装 

分 类 号：U448.223[建筑科学—桥梁与隧道工程]