摘要
连续刚构桥线型控制是连续梁施工的关键技术,主要通过施工监控及设置预拱度实现,是保证连续梁顺利合龙及线型条件达到设计要求的技术保障。针对龙溪嘉陵江特大桥200 m跨宽幅连续刚构,分析了大跨、宽幅连续刚构桥的控制要点,采用有限元仿真计算与现场实测数据进行对比分析,达到控制连续刚构桥整体线型的目的,为类似大跨宽幅连续刚构桥施工过程中线型控制积累了宝贵的经验。
The alignment control of continuous rigid frame bridge is the key content of continuous beam construction,which is realized by construction monitoring and pre-camber setting.It is the technical guarantee to ensure the smooth closure of continuous beam and the alignment condition to meet the design requirements.Aiming at stream jialing river extra-large bridge is 200 m across wide continuous rigid frame,analyzes the control of long-span continuous rigid frame bridge,wide cut points,compare to the actual measured data is obtained by using the finite element simulation analysis,achieve the goal of integrated linear control continuous rigid-frame bridge,for the similar long-span continuous rigid frame bridge construction process wide linear control has accumulated valuable experience.
作者
赵佳云
李清芾
ZHAO Jia-yun;LI Qing-fu(CCCC First Highway Eighth Engineering Co.,Ltd.,300170,Tianjin,China)
出处
《建筑技术》
2023年第19期2382-2384,共3页
Architecture Technology
关键词
大跨宽幅
连续刚构
施工控制
large span wide
continuous rigid frame
construction control
