Reinforcing steel bar corrosion monitoring device in reinforced concrete member

• Main Authors: WANG ZONGZE, FU XINGHU, ZHANG YANJUN, YANG LIUZHEN, WANG HUAJIE
• Format: Patent
• Language: Chinese; English
• Published: 21.01.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a reinforcing steel bar corrosion monitoring device in a reinforced concrete member, which relates to the technical field of fiber bragg gratings, and comprises a cover plate type base, a sensing contact, two fiber Bragg gratings with the same other parameters except the central wavelength, an elastic sheet, a wedge-shaped fixing nut, an elastic sheet fixing pressing plate and a concrete casting. Meanwhile, temperature mutual compensation is carried out between the two gratings, the device converts the thickness change transmitted by the concrete casting and the reinforcing steel bar into the change of the central wavelength of the sensing grating through the cooperation of a sensor contact and an elastic piece, and corrosion monitoring is carried out by analyzing the relationship between the change of the thickness of the casting and the reinforcing steel bar and the change of the central wavelength of the sensing grating. The device not only can monitor the cracking degree of the con