全球定位系统2016，Vol.41Issue(1)：91-95,5.DOI:10.13442/j.gnss.1008-9268.2016.01.019
数字近景摄影测量在桥梁变形观测中的应用
The Application of Digital Close-Range Photogrammetry in the Deformation Observation of Bridge
摘要
Abstract
In the light of the shortcomings of traditional monitoring methods of the de‐formation observation ,this paper adopts digital close‐range photogrammetry for the deform‐ation observation of the bridge in the dynamic real‐time moments :at the first ,laying the ref‐erence points and the deformation points with the artificial marks ,then ,using the digital cameras verified with the direct linear transformation method to capture the dynamic bridge at the moment and obtain the pictures w hich bears deformation information ,at last ,accord‐ing to the space time baseline parallax method ,processing the collected data ,and showing out the results graphically .Data shows that :using digital close‐range photogrammetry to observe the deformation of the dynamic bridge structure is easy to operate and can also obtain the deformation information of a number of observation points in the blink of an eye ,the ac‐curacy of the results reached 3/1000 . T he study has important reference value for the de‐formation observation of the bridge .关键词
数字近景/摄影测量/桥梁变形/监测动态Key words
Digital close-range/photogrammetry/bridge deformation/observation dy-namic分类
建筑与水利引用本文复制引用
张国建,于承新..数字近景摄影测量在桥梁变形观测中的应用[J].全球定位系统,2016,41(1):91-95,5.基金项目
山东省科技计划项目 （）
