Since the calculation principles, formulas and limiting conditions of sticking steel and sticking carbon fiber reinforcement are the same, how to quickly determine whether to use sticking steel or sticking carbon fiber cloth reinforcement after determining that the components can be reinforced by sticking steel or sticking carbon fiber? HORSE reveals the answer for everyone.

The basic principle and material characteristics are considered for the selection of the scheme:

1) Structural deformation

The elastic modulus of carbon fiber cloth and steel plate is basically the same, but the tensile capacity of carbon fiber cloth is 8 times that of steel plate. Therefore, when the structure of the building deforms greatly, it is recommended to adopt the reinforcement method of sticking carbon fiber cloth. If the deformation capacity is small and the bearing capacity of building components differs greatly, in order to reduce the stress hysteresis and ensure the full performance of the material, the priority is to use bonded steel reinforcement.

2) Reinforcement requirements

In the case of the same reinforcement requirements, the cross-section required for steel-bonded reinforcement is relatively large, which significantly improves the structural rigidity. If the bending resistance of the two is the same, the deflection and crack width of the bonded steel reinforcement is smaller than that of the bonded carbon fiber cloth reinforcement.

3) The impact of strengthening the environment

If the structure is in a humid corrosion reinforced environment, it is recommended to use carbon fiber cloth, because the corrosion resistance of carbon fiber cloth is much better than that of steel.