Steel bar corrosion information acquisition device and steel bar corrosion detection method for concrete structures
A technology of concrete structure, steel bar corrosion, applied in the direction of measuring devices, instruments, magnetic variables of materials, etc.
Active Publication Date: 2019-06-14
CHONGQING JIAOTONG UNIVERSITY
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Problems solved by technology
However, in reinforced concrete structures, the steel bars are covered by the concrete structure, and the existing metal magnetic memory detection method is not suitable for corrosion detection of steel bars in concrete structures.
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[0045] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0046] Such as Figure 1 to Figure 4 As shown, the present invention discloses a steel bar corrosion information collection device for concrete structures, which includes a magnetic sensor assembly and a displacement assembly. Magnetic sensor, when using the steel bar corrosion information collection device to detect the reinforced concrete structure, the first magnetic sensor and the second magnetic sensor face the surface of the reinforced concrete structure, and the central axes of the first magnetic sensor and the second magnetic sensor coincide and are vertical On the surface of the reinforced concrete structure, the distance between the first magnetic sensor and the surface of the reinforced concrete structure is greater than the distance between the second magnetic sensor and the surface of the reinforced concrete structure; the displacement component ...
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The invention discloses a steel bar corrosion information acquisition device for concrete structures. The steel bar corrosion information acquisition device for concrete structures comprises a magnetic sensor assembly and a displacement assembly, wherein the magnetic sensor assembly comprises a magnetic sensor bracket; a first magnetic sensor and a second magnetic sensor which is parallel to and dead against the first magnetic sensor are mounted on the sensor bracket; the displacement assembly comprises a displacement assembly bracket; a moving device and a displacement monitoring device are mounted on the displacement assembly bracket; the steel bar corrosion information acquisition device for concrete structures furthermore comprises a memory; and the memory is electrically connected with each of the first magnetic sensor, the second magnetic sensor and the displacement monitoring device. The device is simple to operate, convenient to carry and strong in environment adaptability. Theinvention furthermore discloses a steel bar corrosion detection method for concrete structures. By adoption of the device and the method, corrosion detection can be carried out on steel bars of concrete structures, so that the device and the method are suitable for corrosion detection of different steel bars and are capable of carrying out classification judging on the corrosion degrees; and twomagnetic sensors are utilized for carrying out detection, so that the detection effect and precision are improved.
Description
technical field [0001] The invention relates to the field of concrete steel bar damage detection, in particular to a steel bar corrosion information collection device for concrete structures and a steel bar corrosion detection method. Background technique [0002] Reinforced concrete is one of the most widely used structural forms in the field of engineering. It gives full play to the compressive strength of concrete and the tensile strength of steel bars, and has good cohesion between concrete and steel bars. Concrete can also protect the steel bars from corrosion, effectively combining these two materials. The corrosion of steel bars has become the main factor affecting its mechanical properties and durability. If the corrosion of steel bars can be detected in time and corresponding preventive measures can be taken, huge economic losses can be greatly reduced or even avoided, and everyone's travel safety can be guaranteed. [0003] "Metal Magnetic Memory" (MMM) provides i...
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Login to View More IPC IPC(8): G01N27/85G01B21/02
Inventor 张洪夏润川周建庭马虎周应新廖棱杨俊辛景舟黎小刚
Owner CHONGQING JIAOTONG UNIVERSITY