弯曲引桥作为钢管拱吊装扣锚平衡系统的可行性研究  

Feasibility Study of Using Curved Approach Bridge as Fastening and Anchorage Balance System for Steel Tubular Arch Hoisting

作　　者：袁海庆[1] 喻立举[1] 范剑锋[2] 李海峰[1] 张明中[1] 

机构地区：[1]武汉理工大学土木工程与建筑学院,湖北武汉430070 [2]武汉理工大学道路桥梁与结构工程湖北省重点实验室,湖北武汉430070

出　　处：《桥梁建设》2009年第1期81-84,共4页Bridge Construction

基　　金：湖北省交通厅科技项目(鄂交科教[2003]570)

摘　　要：针对弯曲引桥情况下钢管拱肋吊装中以交界墩代替扣索塔的施工方法,结合景阳河大桥的施工实践,分析与讨论了钢管拱吊装过程中扣索与锚索的不平衡水平力对弯曲引桥的影响,比较分析了不同支座情况下弯曲引桥桥面与桥墩的受力和变形,讨论了利用弯曲引桥结构作为扣锚拱肋吊装时平衡系统的可行性。In the light of the construction method of replacing a fastening cable tower with a juncture pier of the curved approach bridge in the hoisting and installation of steel tubular arch ribs and in view of the construction practice of Jingyang River Bridge, this paper analyzes and discusses the influences of the unbalanced horizontal load caused by the fastening and anchorage cables on the curved approach bridge in the hoisting and installation of the arch ribs, compares and analyzes the stress and deformation of the deck and pier of the bridge equipped with different bearings and also discusses the feasibility of using the bridge structure as the fastening and anchorage balance system in the hoisting and installation.

关 键 词：钢管混凝土拱桥 缆索吊装 不平衡纵向力 弯曲引桥 

分 类 号：U445.464[建筑科学—桥梁与隧道工程]