一种基于视觉测量的桥台变形监测方法、设备及介质

By constructing a height slope distribution and extracting the slope variation, and combining the total height of the abutment measurement to calculate the top and bottom rotation angles, the overall translation of the abutment is separated, solving the problem of difficulty in separating the vertical deformation gradient and the overall rotation angle in abutment deformation monitoring, and achieving more accurate abutment deformation monitoring.

CN122115404BActive Publication Date: 2026-07-17JILIN JIANZHU UNIVERSITY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JILIN JIANZHU UNIVERSITY
Filing Date
2026-03-13
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing bridge abutment deformation monitoring methods are difficult to effectively separate and quantify the vertical deformation gradient, overall rotation angle, overall translation and nonlinear deviation of the bridge abutment. Traditional methods are also difficult to complete the quantification and differentiation of the degree of overall rotation angle, overall translation and deviation in the same data chain.

Method used

By acquiring images of the bridge abutment facade, performing sub-pixel geometric center fusion processing, constructing a height slope distribution and extracting slope variation, and combining the total measured height of the bridge abutment to calculate the top and bottom rotation angle, the overall translation of the bridge abutment is separated to form the bridge abutment deformation monitoring quantity.

Benefits of technology

It realizes the distributed characterization of the vertical deformation gradient of the bridge abutment, and separates the overall translational amount, overall rotation amount and consistency residual amount of the bridge abutment, thereby improving the accuracy and consistency of bridge abutment deformation monitoring.

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Abstract

本发明公开了一种基于视觉测量的桥台变形监测方法、设备及介质,涉及光学测量技术领域,包括:通过真实水平位移序列和真实高度间距序列,构建高度斜率分布并提取斜率变差量,结合桥台测量总高度计算顶底转角量,根据斜率变差量对顶底转角量进行一致性校正,形成桥台整体转角量;根据桥台整体转角量对真实水平位移序列进行线性重建,得到线性重建真实水平位移序列,利用线性重建真实水平位移序列与真实水平位移序列的差异提取一致性残差量,并从真实水平位移序列中分离桥台整体平移量,形成桥台变形监测量。本发明通过根据桥台整体转角量进行线性重建并计算一致性残差量,实现了桥台整体平移量、桥台整体转角量与一致性残差量的分离表征。
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