摘要
由于悬索桥跨度大 ,台风、地震、车载和温度变化对桥梁变形影响很大 ,对大桥实时监测 ,获取桥梁在上述环境下的工作状况 ,验证结构的抗风、抗震分析的特征参数 ,成为大桥安全性研究的重要课题。本文比较了几种常用的位移监测方法 ,给出 GPS(RTK)技术对位移进行实时监测的特点 ,并对虎门大桥的 GPS监测数据进行了分析。
Typhoon,earthquake,traffic loads and temperature have a great impact on suspension bridges of long span.To obtain the true work status and to validate the anti wind as well as aseismatic fundament parameters by on line monitoring have become one of the important tasks.In this paper,the real time displacement characters monitored by GPS are got through comparing several ordinary methods,and the test data of Humen suspension bridge is analyzed.
出处
《工程勘察》
CSCD
北大核心
2001年第1期47-48,共2页
Geotechnical Investigation & Surveying
基金
国家自然科学基金资助项目! (4 98710 6 5
