钢结构人行天桥内拉式连续顶推施工关键技术  

Key Construction Technology of Inner Pulling Continuous Jacking for Steel Structure Pedestrian Overbridge

作　　者：尹威 刘宇 YIN Wei;LIU Yu(Guangzhou Central District Traffic Project Management Center,Guangzhou,Guangdong 510000,China)

机构地区：[1]广州市中心区交通项目管理中心,广东广州510000

出　　处：《施工技术（中英文）》2024年第14期63-67,共5页Construction Technology

摘　　要：为解决广州市奥体中心站钢结构人行天桥施工过程中存在的设计与施工问题,经过理论计算、现场确认、方案研究,提出内拉式连续顶推施工技术,成功解决了桥下净空受限和施工用地紧张的施工难题,节约了施工用地,减少了管线迁改工作量。对传统导梁系统、滑道系统、同步顶推系统等进行改进创新,增强了顶推系统稳定性,降低了施工难度,提高了工作效率。实践表明,采用内拉式连续顶推施工技术缩短了顶推施工要点时间,降低了施工对通行车辆交通的影响,保证了铁路和公路的行车和既有设备安全。In order to solve the design and construction problems existing in the construction process of the steel structure pedestrian overbridge for Guangzhou Olympic Sports Center Station,through theoretical calculation,on-site confirmation and scheme research,the inner pulling continuous jacking construction technology is put forward,which successfully solves the construction problems of limited clearance under the bridge and tight construction land,saves construction land and reduces the workload of pipeline relocation.At the same time,the traditional guide beam system,slideway system and synchronous jacking system are improved and innovated,which enhances the stability of the jacking system,reduces the construction difficulty and improves the work efficiency.Practice shows that the use of inner pulling continuous jacking construction technology shortens the time of jacking construction points,reduces the impact of construction on the traffic of passing vehicles,and ensures the safety of railway and highway traffic and existing equipment.

关 键 词：钢结构 人行天桥 顶推 监测 施工技术 

分 类 号：TU758[建筑科学—建筑技术科学]