The prestressed FRP system is refers to increase the reinforcement materials in the tension zone of strengthening component(or shear weak area).Because of prestressing to improve the stress state of the original beam, bearing capacity and crack strength.

Compared with the traditional reinforcement technology, the advantages of prestressed carbon fiber laminate are as follows: 

1. Give full play to carbon fiber materials(high strength ,high modulus), through the application of prestressed carbon fiber materials and reinforced synergistic force, significantly improve the reinforcement effect.

   
   

2. It can balance the weight of the structure and the part of the existing load, improve the bending rigidity of the beam, greatly reduce the deformation of the structure deformation, significantly improve its cracking, yield and ultimate bearing capacity, the structure of the original cracks are significantly inhibited Role, improve its normal use performance.

   
   

3. Long-term corrosion resistance, fatigue resistance and excellent anti-relaxation, can effectively extend the service life of components.

   
   

4. The construction process is simple and reliable, through the tensile stress and the elongation of carbon fiber sheet to achieve the relationship between the two precise tension control.

   
   

5. Can be easily achieved with the components of the bond between the prestressed reinforcement, uniform distribution of stress, and to avoid a large number of late wet operation processes, to achieve rapid reinforcement.