Guangzhou Municipal Engineering Testing Co., Ltd.

Guangzhou Institute of Building Science Group Co., Ltd.

Sijia Zhu

Xiaoli Sun

Zhiguo Zhou

Jun Yang

Linbin Wang

Feng Li

Disclosed herein is a bolt axial force measurement method, device, apparatus, and readable storage medium, the method comprises steps of: capturing an image of a bridge bolt; identifying an outer edge of a nut, a centroid of the nut, and a circular position of a laser spot in a captured image of the bridge bolt; projecting a calibration laser spot onto a bolt plate and obtaining a current frame as a bolt-detection image; performing dimensional calibration on the bolt-detection image and determining a displacement of each of the pre-calibrated feature points; calculating a bolt axial force value based on the displacement. The solution captures images of the bridge bolts and analyzes positions of each of the pre-calibrated feature points in the images; thus, the bolt axial force can be measured non-destructively, and non-rotational loosening of bolts can be identified.

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Guangzhou, China

Sijia Zhu