混凝土连续刚构桥梁施工监控技术  

Construction monitoring technology of concrete continuous rigid frame bridge

作　　者：顾小路 Xiaolu Gu(Hubei Communications Investment Hanshi Expressway Operations Management CO.,LTD,Wuhan 430000,China)

机构地区：[1]湖北交投汉十高速公路运营管理有限公司,武汉430000

出　　处：《青海交通科技》2021年第3期122-127,144,共7页Qinghai Transportation Science and Technology

摘　　要：混凝土连续刚构桥梁在施工中,受温度、荷载等影响导致桥梁结构线形与设计出现偏差。开展桥梁施工监控工作,进行结构有限元计算与分析,提供施工预拱度控制数据,可以保证正常施工和箱梁的顺利合拢。在各种工况下监测各箱梁节段的变形和挠度,并定期复核主梁高程控制基准点,可以使桥面线形处于受控状态。各工况下监测箱梁控制截面的应力应变,进行应力分析、结构应力控制,保证桥梁安全。In the construction of concrete continuous rigid frame bridge,the influence of temperature and load leads to the deviation of bridge structure alignment and design.By the structural finite element analysis,the construction camber control data can ensure normal construction and smooth closure of box girder.Monitoring the deformation and deflection of each box girder section under various working conditions and regularly reviewing the elevation control datum point of the main girder can make the bridge deck alignment under control.Monitoring the strain of girder concrete under various working conditions,and carrying out stress analysis and structural stress control can ensure the safety of bridge structure.

关 键 词：施工监测 控制参数 应力测试分析 结构安全 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]