A carbon fiber reinforced steel structure and detection method

Abstract

The invention provides a carbon fiber reinforced steel structure. The carbon fiber reinforced steel structure comprises a reinforced structure body, the reinforced structure body comprises a steel plate layer, a carbon fiber layer and a conductive connecting layer; the conductive connecting layer is made from a conductive binder; the steel plate layer and the carbon fiber layer are connected integrally through the conductive connecting layer, and the conductive connecting layer is electrically connected with the steel plate layer and the carbon fiber layer. The invention further relates to a detection method of the carbon fiber reinforced steel structure. The carbon fiber reinforced steel structure and the detection method thereof have the advantages that the own conductive characteristicsof the conductive binder is utilized, detection and safety pre-warning are carried out on the deformation damage in a full-life cycle of the carbon fiber reinforced steel structure by detecting the resistance change caused by the deformation of a reinforced structure body, thereby achieving the purpose of self-inspection; the detection in the long-term full-life cycle is achieved, the cost is low, an additional detection technology does not need to be used, electrodes only need to be arranged on a carbon fiber and a steel material, the detection can be completed by measuring the resistance, the universality is good, and the process is simple and harmless.

Description

technical field [0001] The invention relates to a steel structure, in particular to a carbon fiber reinforced steel structure and a detection method. Background technique [0002] There are a large number of steel structures in various industrial and civil buildings, structures, bridges, culverts and tunnels. These steel structures occupied an important position in the economy of the Republic of China. In these steel structures, due to their different environments On the one hand, due to external loads or human factors, various damages and defects will inevitably occur. On the other hand, traditional reinforcement processes such as welding and bolting have limitations of many defects. However, carbon fiber material is a new type of reinforcement material. The elastic modulus of carbon fiber material is similar to that of steel, but its strength is five times that of steel bars. Advantages, and these advantages of carbon fiber materials can perfectly solve the defects of the...

AI Technical Summary

Problems solved by technology

There are mainly the following disadvantages: (1) It is suitable for inspecting thinner workpieces but not for thicker workpieces; (2) The detection cost is high; (3) The detection speed is slow; (4) The rays are harmful to the human body

The main disadvantages are as follows: (1) It is suitable for inspecting thicker structures, but not suitable for inspecting thinner structures; (2) The irregular shape and some structures of the workpiece will affect the detection; (3) Uneven or rough surfaces will affect the coupling and scanning, thus affecting the detection accuracy and reliability

The main disadvantages are as follows: (1) It can detect surface and near-surface defects, but cannot be used to inspect internal defects; (2) The shape and size of the workpiece sometimes affect the detection, and it cannot be detected because it is difficult to magnetize

The main disadvantages are as follows: (1) It can detect the defects of surface openings, but it cannot detect buried defects or closed surface defects; (2) There are many inspection procedures and the speed is slow; (3) The materials are more expensive and the cost is higher ; (4) Some materials are flammable and toxic

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