1. Enlarged section reinforcement method
The construction method has simple technology, strong adaptability, and mature design and construction experience; it is suitable for strengthening beams, slabs, columns, walls and ordinary concrete structures; but the construction site has a long time of wet work, which has a certain impact on production and life.Qingdao Building ReinforcementThe headroom of the building will be reduced to some extent after reinforcement.
2. Replacement concrete reinforcement method
The advantages of this method are similar to the enlarged section method, but it does not affect the reinforced structure after removal, but it also has the disadvantage of long wet working time; it is suitable for beams and columns with low concrete strength or serious compression zone defects. Reinforcement.
3. Baotou reinforcement method
Qingdao Building ReinforcementThis method, also known as the wet-clad steel bar method, has the advantages of reliable stress, simple construction, and small on-site workload. However, the amount of steel used is large, and it is not suitable for use in unprotected places with high temperatures above 600°C. It is not allowed to increase the cross-sectional size of the original member, and it also improves the bearing capacity of the concrete structure.
4. Reinforcement method of sticking steel plate
No wet work or only a small amount of plastering on the construction site. Wet work affects production and service life, and has no obvious effect on strengthening the original structure and removing the appearance, but the strengthening effect depends largely on the process and operation of the adhesive; it is suitable for static tension and bending of component steel bars under normal humidity conditions.
5. Fiber reinforced plastic reinforcement method
In addition to the similar advantages of pasting steel plates, it also has the advantages of corrosion resistance, moisture resistance, almost no increase in structural weight, good durability, and low maintenance costs. Reinforcement of bending or tension members.
6. Winding method
The advantages and disadvantages of this method are similar to those of the enlarged section method; it is suitable for the reinforcement of concrete structural members with insufficient load-bearing capacity of the oblique section, or occasions where the compressive members require lateral restraint.
7. Bolt anchoring method
This method is suitable for the transformation of C20～C60 concrete load-bearing structures with concrete strength grades; it is not suitable for strong weathering and lightweight structures.