摘要
为了解和掌握上海南浦大桥主跨结构昼夜变形特征,在南浦大桥主跨两端、主跨中央部位安装了4个GPS监测点,并实施了4次24h全天候连续观测。介绍了测量组织与数据处理的方法,从数据分析了桥梁主跨昼夜及季节性变化规律。测试表明南浦大桥主跨在垂直方向的变化、桥身长度变化与气温有较强的相关性。
In order to learn about the deformation rules of Nanpu Bridge of Shanghai, continuous observations have been carried out for four times all the day, four GPS Forced Centering Observation Stands have been distributed on the bridge, two on the end of bridge, and the others on the central. The methods to survey organizations and manage data are introduced. The results shows that the variations of height and bridge-length were greatly correlative with temperature according to the data, that is, when the temperature rises to the peak, bridge height decreases to the bottom, and bridge length rises to the maximum, the daily variations and seasonal variations show the same deformation cha- racters.
出处
《中国市政工程》
2007年第1期20-21,共2页
China Municipal Engineering
关键词
GPS
桥梁变形监测
相关系数
观测台
GPS
Structural Health Monitoring (SHM)
correlation coefficient
Forced Centering Observation Stand
作者简介
熊福文（1972-），男，高级工程师，在读硕士，主要从事GPS数据处理和地面沉降研究。
