Floor opening reinforcement refers to opening new openings on existing floors and strengthening the surrounding structures to ensure the structural safety and stability of the building.

Firstly, it is necessary to conduct a structural evaluation of the floor slab to determine the safe range of opening positions and sizes. Then, reinforce the floor structure around the opening location, usually using materials such as steel plates, steel bars, and carbon fibers for reinforcement.

During the reinforcement process, the following points need to be noted:

• Structural assessment: Before conducting reinforcement with openings, a structural assessment is required to determine the safety range of the opening location and size, and to determine the reinforcement plan.

• Reinforcement design: The reinforcement design must comply with structural safety requirements and design standards, and detailed design of reinforcement materials, methods, quantities, etc. is required to ensure that the reinforced structure meets the requirements.

• Construction quality: During the reinforcement construction process, attention should be paid to the selection and quality of materials. During the construction process, it is necessary to strictly follow the design requirements to ensure that the construction quality meets the standard requirements.

• Safety measures: When carrying out reinforcement construction, safety measures need to be taken, such as building scaffolding, using safety belts, etc., to ensure the safety of construction personnel.

• Inspection and acceptance: After completing the reinforcement construction, acceptance and testing are required to ensure that the reinforcement effect meets the design requirements and standard requirements.

• Monitoring: In order to ensure the safety and reliability of the reinforced structure, it is necessary to monitor the reinforced structure, record the deformation and stress changes of the structure, and promptly identify and handle problems.

Carbon fiber reinforced opening has the following advantages:

1. High strength: Carbon fiber reinforced materials have a strength 5-10 times higher than steel, which can effectively improve the load-bearing capacity and stiffness of the structure.

2. Lightweight: The specific gravity of carbon fiber reinforced materials is only 1/4-1/5 that of steel, which can reduce the self weight of the structure and reduce the load on the floor.

3. Corrosion resistance: Carbon fiber reinforced materials are not easily corroded and oxidized, and have a long service life.

4. Flexibility: Carbon fiber reinforced materials can be cut, pasted, wrapped, and other construction methods according to needs, adapting to structures of different shapes and sizes.

5. Construction convenience: The construction process of carbon fiber reinforced materials is simple and convenient, without the need for a large number of construction equipment and tools, which can reduce construction time and costs.

6. No need to dismantle the original structure: Carbon fiber reinforcement is a surface reinforcement method that does not require dismantling the original structure and can reduce damage and impact on buildings.