Carbon fiber reinforcement is suitable for various types of building structures, mainly including the following categories:

1、 Concrete structure

Beam:

Suitable for various types of concrete beams, such as frame beams, secondary beams, etc. When cracks, excessive deformation, and insufficient bearing capacity occur in beams due to unreasonable design, overloading, aging, and other reasons, carbon fiber cloth can be used for reinforcement. For example, pasting carbon fiber cloth in the tensile zone of a beam can improve its flexural bearing capacity; Attaching U-shaped carbon fiber cloth hoops at the ends and shear zones of the beam can improve its shear bearing capacity.

For some special shaped beams, such as T-beams, box beams, etc., carbon fiber reinforcement can also achieve good results. Reasonable design and construction should be carried out according to the specific shape and stress characteristics of the beam during reinforcement.

Column:

During long-term use, concrete columns may experience problems such as concrete crushing in the compression zone, steel corrosion, and excessive axial compression ratio. Strengthening the column with carbon fiber cloth surrounding it can improve its bearing capacity and ductility. Especially for columns with high axial compression, carbon fiber reinforcement can effectively constrain the lateral deformation of concrete and improve its compressive strength.

For column damage caused by earthquakes and other reasons, carbon fiber reinforcement can quickly restore the bearing capacity of columns and improve the seismic performance of structures.

Slab:

Concrete floor slabs may experience problems such as cracks, increased deflection, and insufficient bearing capacity during use. The use of carbon fiber cloth pasted on the bottom of the board can improve the bending capacity and stiffness of the board, reduce the development of cracks and deflection deformation. For some large-scale floor slabs, carbon fiber reinforcement can avoid problems such as long construction period, high cost, and significant impact on the surrounding environment caused by demolition and reconstruction.

2、 Steel structure

Steel beams:

Steel beams may experience local buckling, excessive deformation, and weld cracking during use. The use of carbon fiber cloth pasted on the tensile flanges or web plates of steel beams can improve their bending and shear bearing capacity, and enhance their overall stability. For example, for some steel beams with large spans, pasting carbon fiber cloth in the mid span tension zone can effectively reduce the deflection deformation of the steel beams.

For steel beam section weakening caused by corrosion and other reasons, carbon fiber reinforcement can restore the load-bearing capacity of the steel beam and extend its service life.

Steel column:

Steel columns may experience local deformation and reduced strength after accidents such as fires and impacts. Using carbon fiber cloth to wrap steel columns can improve their load-bearing capacity and seismic performance. Carbon fiber cloth can constrain the lateral deformation of steel columns, improving their stability and ductility.

For some steel columns used in coastal or corrosive environments, carbon fiber reinforcement can provide anti-corrosion protection and improve the load-bearing capacity of the steel columns.

3、 Wooden structure

Wooden beams and columns:

For wooden beams and columns in old wooden structures, they may experience problems such as decay, cracking, and deformation due to long-term erosion and load from the natural environment. The use of carbon fiber cloth pasted on the surface of wooden beams and columns can improve their load-bearing capacity and stiffness, and extend the service life of wooden structures. For example, pasting carbon fiber cloth in the tensile zone of a wooden beam can improve its flexural bearing capacity; Pasting carbon fiber cloth around wooden columns can improve their compressive and shear bearing capacity.

Carbon fiber reinforcement can also improve the seismic performance of wooden structures and enhance their stability under earthquake action.

4、 Bridge structure:

Carbon fiber reinforcement is widely used in the reinforcement of various bridge structures, such as beam bridges, arch bridges, cable-stayed bridges, etc. For concrete beams, slabs, piers and columns of bridges, carbon fiber reinforcement can improve their bearing capacity and durability, and extend the service life of bridges. For example, pasting carbon fiber cloth inside the box girder of a bridge can repair damage caused by cracks and rust; Pasting carbon fiber cloth on the surface of bridge piers can improve their seismic performance.

For some steel bridge structures, carbon fiber reinforcement can also play a role in anti-corrosion and improving bearing capacity.

5、 Other types

Tall structures such as chimneys and water towers:

These towering structures may be affected by factors such as wind loads, seismic effects, temperature changes, etc. during long-term use, resulting in problems such as cracks and deformations. The use of carbon fiber cloth for reinforcement can improve the overall integrity and stability of the structure, reduce the development and deformation of cracks. For example, sticking carbon fiber cloth on the surface of a chimney can enhance its wind resistance and seismic performance; Attaching carbon fiber cloth to the body of a water tower can improve its load-bearing capacity and impermeability.