斜拉桥悬浇连续梁线形控制施工技术  

Linear Control Construction Technology for Cantilever Continuous Beam of Stayed-cable Bridge

作　　者：王春兵 WANG Chunbing(General Contracting Branch of CRCC Harbour&Channel Engineering Bureau Group Co.,Ltd.,Zhuhai,Guangdong Province,519000 China)

机构地区：[1]中国铁建港航局总承包分公司,广东珠海519000

出　　处：《科技资讯》2023年第3期93-96,共4页Science & Technology Information

摘　　要：随着我国经济的飞速发展,桥梁建设事业也飞跃发展,大跨度预应力悬浇连续梁得到了广泛应用,在桥梁建设中起到极其重要的作用。大跨度钢筋混凝土预应力悬浇连续梁由于施工工艺复杂,施工技术要求高,受各种施工条件和工况影响大,桥梁线形难以控制,桥梁成型后容易出现线形与设计不符的情况,桥梁的受力、设计无法达到设计需求。所以,对于桥梁线形控制的工作极为重要,线形控制贯穿施工的全过程。该文以双湖路跨鸡啼门特大桥为例,探讨大跨度矮塔斜拉预应力连续梁线形控制施工技术和施工存在的问题,为以后的类似工程提供必要的参考和建议。With the rapid development of China’s economy, bridge construction has a rapid development, the large-span prestressed cantilever continuous beams have been widely used, and they also play an extremely important role in bridge construction. Due to the complex construction process and high construction technical requirements of long-span reinforced concrete prestressed cantilever continuous beam, it is difficult to control the linearity of the bridge due to various construction conditions and working conditions. After the bridge is formed, the linearity is easy to be inconsistent with the design, resulting in the appearance and stress of the bridge failing to meet the design requirements. Therefore, it is very important to strengthen the linear control of the bridge, which runs through the whole process of construction. Taking Shuanghu Road Jitimen Bridge as an example, this paper discusses the linear control construction technology and construction problems of long-span low tower stayed-cable prestressed continuous beam, so as to provide necessary references and suggestions for similar projects in the future.

关 键 词：矮塔斜拉 悬浇连续梁 线形控制 标高控制 预拱度 

分 类 号：TU73[建筑科学—建筑技术科学]