Bridge structure vibration detection method based on computer image recognition

• Main Authors: CUI ZHONGWEI, SANG HAIWEI, YUAN MEIMEI, YU XIONG, WANG QIAO, RAN SIBIN, ZUO YU
• Format: Patent
• Language: Chinese; English
• Published: 02.12.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES; MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention provides a bridge structure vibration detection method based on computer image recognition, and the method comprises the steps: collecting the pneumatic state information of an external environment where a bridge is located and the structural stress state information of a preset position point, so as to judge whether the bridge is in a wind-induced vibration state or not at present; when the bridge is in a wind-induced vibration state, collecting and analyzing a dynamic image of a preset position point of the bridge to obtain actual vibration state information of the bridge so as to identify a suspected structural fatigue position point existing in the bridge; and finally, vibration excitation is applied to the suspected structural fatigue position points, structural damage state information of the suspected structural fatigue position points is detected, corresponding bridge structural safety structure indication information is generated, image shooting and analysis are conducted on the bridge,