摘要
研究目的:针对大跨度弯曲连续梁或连续刚构桥悬臂挂篮施工挠度、应力和几何形位的变化,解决施工过程中挠度控制、应力监测和几何形位的控制问题。研究结果:解决了大跨度曲线连续梁桥悬臂挂篮施工的挠度控制、应力监测和几何形位的控制方法问题,桥梁成桥后的测量检验结果表明,控制与监测效果良好,其挠度和几何形位完全符合设计和桥梁施工规范的要求。
Research purposes： Considering the variations of flexibility, stress and geometrical configuration of large span curved continuous beam or continuous rigid frame bridge in the course of construction, the study is done on the issues of flexibility and geometrical configuration control and stress measurement.
Research results： The specific analytical and controlling method for flexibility and configuration control and stress measurement in beam with cantilever wall basket constructing method has been presented. The results show that the flexibility and configuration of the bridge adequately confirm with requirements of design and bridge construction codes.
出处
《铁道工程学报》
EI
北大核心
2008年第3期38-41,49,共5页
Journal of Railway Engineering Society
关键词
大跨度连续箱型梁桥
曲线桥梁
预应力混凝土结构
悬臂挂蓝施工
挠度与线形控制
应力监测
large span continuous box beam
curved bridge
prestressed concrete structure
cantilever wall basket method
flexibility and configuration control
stress measurement
