摘要
大跨度桥梁承载力不均匀,局部的承压绕度形变程度极小,过小的形变导致在远程坐标转换过程中,常常发生坐标对应错误,导致形变部位基准坐标点不准。本文提出一种基于GPS补充技术的大跨度桥梁结构的承载力检测方法,依靠对大跨度桥梁形变部位的坐标值进行残差修正补偿,减小转化坐标误差对测量几个的影响,并提出了CFRP加固方法进行修复。实验结果表明,这种算法能够提高桥梁在高压力下的承载力检测准确性。
Large-span bridge bearing capacity uneven,local confined deflection deformation degree minimal,too small deformation resulting in remote coordinate conversion process,often happen coordinate corresponding error,lead to deformation position reference coordinate point is not allowed.This paper presents a supplement based on GPS technology of large span bridge structure bearing capacity test method,rely on the analysis of a long-span bridge deformation parts of the coordinate values for residual correction compensation,reduce conversion coordinates error for measuring several influence,and puts forward the CFRP strengthening methods for repair.The experimental results show that this algorithm can improve the Bridges in high pressure bearing capacity of the detection accuracy.
出处
《科技通报》
北大核心
2013年第7期204-207,共4页
Bulletin of Science and Technology
关键词
桥梁形变
GPS
残差补偿
bridge deformation
GPS
residual error compensation
