寿宁坪坑拱桥缆索吊装系统方案研究  

Research on Schemes of Shouning Pingkeng Arch Bridge's Cable Hoisting System

作　　者：陈泳鹏[1] 吴能森[1] 龚灿宁[1] 周成军[1] 丁巧丽[1] 

机构地区：[1]福建农林大学交通与土木工程学院,福建福州350002

出　　处：《西华大学学报（自然科学版）》2016年第1期108-112,共5页Journal of Xihua University:Natural Science Edition

基　　金：福建省高校产学合作科技重大项目(2010H6003);福建农林大学创新(培育)团队建设项目(Pytd12006)

摘　　要：根据坪坑大桥桥址地形地貌、工程地质条件,设计了2套缆索吊装施工方案,并对其进行比选。综合分析得出方案采用主扣塔一体化设计能够保证拱箱吊装净空高度,塔架底部设计为铰接横移方式,满足施工要求,且提高了安全可靠度;上部采用新型贝雷桁架拼装,既节约成本又缩短工期。对拟实施方案吊装系统各绳索进行参数初选、不利工况验算,得出系统满足规范要求,并经主拱圈的实际拼装施工,顺利完成架设任务。According to Pingkeng Bridge＇ s site topography, engineering geological conditions, designing two sets of cable hoisting construction schemes （ Ⅰ ＆ Ⅱ ）, simultaneously comparison and selection between them is made. Based on comprehensive analysis, scheme that adopts the main tower integration design can ensure the required clearance height of lifting arch box, the bottom design of the tower, which utilizes hinged-joint-sliding structures, can be satisfied with the requirements of construction and improve the security and reliability. The new kinds of bailey trusses are applied to assembling the upper of the tower, not only cutting the cost, but also shortening the construction period. Primary selection parameters of all kinds of hoisting ropes are conducted for the scheme, which is intended to be performed. By unfavorable condition checking, it concludes that the cable-hoisting system meets the requirements of the standards. And the erection task has been successfully completed through the actual erection construction of main arch.

关 键 词：山区 拱桥 施工 缆索吊装系统 方案研究 

分 类 号：U445.464[建筑科学—桥梁与隧道工程]