摘要
为测量桥梁在服役过程中沉降、位移及倾斜度的变化,预测桥梁的变形趋势,正确研判桥梁的安全状态,需对现役桥梁设置桥面高程永久测点、墩台高程永久测点和墩台倾斜度观测点,采用独立坐标系统测量测点相对坐标的方法对桥梁进行位移沉降观测。结合龙青高速墨水河大桥位移沉降观测项目,介绍了在役公路桥梁位移沉降观测从控制网建立到观测点的布设及测量再到数据处理与分析的整个过程,可为类似项目提供参考。
In order to measure the changes of settlement,displacement and inclination of bridges during service,predict the deformation trend of bridges,and correctly judge the safety status of bridges,it is necessary to set up permanent measuring points for bridge deck elevation,permanent measuring points for pier elevation and pier abutments for active bridges.For the observation point of the inclination,the displacement and settlement of the bridge is observed by the method of measuring the relative coordinates of the measuring point with an independent coordinate system.Combined with the displacement and settlement observation project of Moshuihe Bridge of Longqing Expressway,the whole process of displacement and settlement observation of in-service highway bridges from the establishment of control network to the layout and measurement of observation points to data processing and analysis is introduced,which can provide reference for similar projects.
作者
梁茂景
赵鹍鹏
LIANG Mao-jing;ZHAO Kun-peng(Shandong Jiaotong University,Jinan,Shandong 250357,China)
出处
《黑龙江交通科技》
2022年第8期82-84,共3页
Communications Science and Technology Heilongjiang
基金
基于钢混组合结构叠合梁设计理念的钢混结合段受力性能分析及应用性研究(2017B99)山东省交通运输厅科技计划项目。
关键词
在役桥梁
沉降位移观测
相对坐标
桥梁稳定性
bridges in service
settlement and displacement observation
relative coordinates
bridge stability
