单塔空间索面自锚式悬索桥缆索系统安装的施工监控.pdfVIP

, 57 : 1003- 4722( 2008) 05- 0057- 03 1 2 曾广武 , 吴东粤 ( 1. 中国铁道科学研究院铁道建筑研究所, 北京100081; 2. 天津市海河建设发展投资有限公司, 天津300141) : 悬索桥结构施工过程中难度最大技术含量最高最难以控制的是缆索 统的安装, 对于空间索面的缆索 统而言, 不同的吊索安装程序张拉顺序及张拉力值均将对主缆的空间位置 产生重大的影响, 并直接影响到施工工期和成桥时的状态通过单塔空间索面自锚式悬索桥 天津富民桥缆索 统安装与体 转换的实际施工控制过程, 验证了所采用的施工控制方法与控制 计算结果的科学性合理性, 对缆索 统的安装施工起到了很好的指导作用 : 自锚式悬索桥; 缆索; 施工监控 : U44 8. 25; U443. 38 : A Construction Monitoring and Control of Cable System Installation of a Single Tower and Spatial Cable Plane SelfAnchored Suspension Bridge 1 2 ZEN G Guangwu , WU Dongy ue ( 1. Railw ay Engineering Research nstitut e, China A cademy of Ra ilw ay Sciences, Beij ing 10008 1, China; 2. H aihe Co nstr uction, Development and nv est ment Co., L td., T ianjin City , T ianjin 300141, China) Abstract: n t he co nstruct io n pro cess of suspension bridg e structur e, t he part of t he w ork that has t he g reat est difficulty, richest t echnical content and t hat is the most diff icult t o co ntro l is the inst allat io n of cable sy st em. For a suspension br idge w ith t he spat ial cable plane cable sys t em, t he different inst allat io n procedures, t ensioning st eps and t ensile for ce values of the hang ers of t he bridg e w ill have sig nif icant inf luence on t he spat ial po sit io ns of t he m ain cables and w ill di r ectly aff ect t he w or king t ime schedule and even t he st at e of t he completed br idge. n t his paper, the construct ion contro l m et hods applied to and the scient ificity and rat io nality of t he calculat ion results of Fum i