Long-term monitoring and analysis for lateral crawling of curved box-girder bridge
Taking a curved box-girder bridge with span of 3×20m as an engineering object,a cloud-based bridge monitoring platform was developed,and a long-term monitoring system of lateral crawling of the curved box-girder bridge was established.By analyzing the monitoring data in a temperature period,it indicates that the transversal,longitudinal and vertical displacements all have good recoverability.The maximum values of transversal and longitudinal displacements are 1.80mm and 12.98mm,respectively.Meanwhile,all monitored displacements have strong correlation with temperature,and the correlation coefficients are basically above 0.9.However,the transversal and longitudinal displacements show obvious hysteresis with respect to temperature,and the hysteresis time is about 5~7h.
curved box-girder bridge lateral crawling long-term monitoring analysis correlation
Cheng Kun Tang Guo-bin Yu Pin-de Li Huad
Bridge Engineering,Henan Transportation Research Institute CO.,LTD,Zhengzhou,China Bridge Engineering,Research and Development Center on Bridge Safety Detection & Reinforcement Technology,Ministry of Transport,PRC,Zhengzhou,China Bridge Engineering,Bridge Diagnosis and Reinforcement Engineering Technology Research Center of Hena
国际会议
The 7th World Conference on Structural Control and Monitoring(7WCSCM)(第七届结构控制与监测世界大会)
青岛
英文
2633-2640
2018-07-22（万方平台首次上网日期，不代表论文的发表时间）