摘要
介绍了检测斜拉索张力的振动方法,并结合现场测试工作讨论了索力测量系统的硬件和软件设计。针对环境随机激励下斜拉索的低阶自振频率不容易识别的问题,研究了瞬态激励的检测试验方案和检测技术。工程实际应用表明:振动法检测斜拉索张力简便实用,所需仪器设备极易携带,检测结果可靠、精度高,且能满足工程应用要求。
Based on the field measurement the hardware and software design of a measurement system of cable tension is discussed. Considering that low-order natural frequencies of the stayed cable are not easy to be identified when the random vibration method is applied to cable tension measurement and monitor in engineering, the testing program and the measuring technique based on transient excitation are investigated according to the vibration nature of the cable in cable stayed bridges. The method can be widely used for field measurement of cable tension during the construction and operation of cable structure. The practical application shows that the vibration method for measurement of cable tension is practical and can meet the high-precision requirements in practical engineering.
出处
《南京航空航天大学学报》
EI
CAS
CSCD
北大核心
2006年第5期609-612,共4页
Journal of Nanjing University of Aeronautics & Astronautics
关键词
斜拉索
索力
振动法
测量
stayed cable
cable tension
vibration method
measurement
