Prestressed reinforcement corrosion and loss identification method and system based on acoustic emission

• Main Authors: GUO YAWEI, LI MANFEI, ZHU YAOYU, LIU JIANPING, GAO LIANG, FENG LIANGPING, XIA GAOXU, GAN JIANFENG, WEI FASHENG, QIN KAIQIANG, RAO FAQIANG, ZHONG YUNPING, YANG YE, FU BAIYONG
• Format: Patent
• Language: Chinese; English
• Published: 25.04.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a prestressed reinforcement corrosion and loss identification method and system based on acoustic emission. The method comprises the steps that acoustic emission signals in the prestressed reinforcement corrosion and loss process are collected; distinguishing the acquired acoustic emission signals; and based on the distinguished acoustic emission signals, identifying whether the high-strength tendon in the concrete bridge fails or not. Corrosion and loss signals of the prestressed reinforcement are collected and analyzed through the acoustic emission technology, the loss state in the corrosion and loss process of the prestressed reinforcement can be recognized, and the acoustic emission signals are obtained and used for detecting and evaluating whether the high-strength reinforcement in the prestressed concrete bridge fails or not. The estimation error of acoustic emission signal acquisition and detection is effectively reduced, the detection sensitivity is improved, and the state reco