Method for maintaining and reinforcing metallic tubular structure

The invention discloses a method for maintaining and reinforcing a metallic tubular structure and mainly relates to a method for reinforcing the metallic tubular structure. In the activities of petroleum exploitation and transportation and the like, tubular metal tubes are widely adopted; the structure and members are always in the severe working environment; and once the structure is used and is commonly expected to work uninterruptedly in the service life period, or the service time limit is expected to be effectively prolonged. Therefore, the structure is generally repaired and reinforced by means of welding, plate shell reinforcement, clamping and the like, which can easily cause the damage to the original structure; and the repairing and reinforcing means have high requirement on auxiliary installation tools. In the method, the metal tubular structure and members are reinforced by using carbon fiber cloth; and the carbon fiber cloth is adhered to a weld joint, a fatigue region, an external damage region