Strengthening refers to various construction measures taken to increase the carrying capacity of a building, improve the performance of the structure or repair existing damage. The construction covers a wide range of different parts and levels of the building structure. Here is a brief introduction to the following aspects of building settlement reinforcement:
1. Strengthen the load-bearing structure
Beam, column, wall reinforcement: Through the reinforcement of beam, column, shear wall and other main load-bearing components, improve its bending, shear and seismic resistance. Common reinforcement methods include increasing section, pasting steel plate, carbon fiber sheet reinforcement, planting reinforcement or prestressing reinforcement.
Floor reinforcement: Increase the bearing capacity of the floor, especially for floors with increased loads or requiring the weight of special equipment. Measures can be taken to increase the thickness, paste carbon fiber cloth or steel plate, and add support beams.
2. Strengthen the foundation
Foundation reinforcement: through grouting, high-pressure rotary jet pile, micro pile and other methods to improve the soil quality, improve the bearing capacity and stability of the foundation.
Foundation reinforcement: such as deep foundation replacement, foundation replacement, etc., to replace or strengthen the original shallow foundation, so that it can bear greater loads.
3. Seismic reinforcement
Add anti-seismic structure: add anti-seismic joints, anti-seismic walls, anti-seismic supports, isolation supports, etc., in the building to improve the ability to resist earthquakes.
Improve structural details: strengthen weak links such as stairwells and elevator shafts, optimize node connections, and ensure the seismic ability of structural integrity.
4. Crack repair and leakage treatment
Crack repair: The use of epoxy resin, polymer mortar and other materials to seal cracks, prevent water intrusion, eliminate structural hazards.
Waterproof treatment: The exposed structure, basement and other water-prone parts of the waterproof coating or waterproof board laying, to prevent leakage.
5. External support and protection
External support structure: When necessary, add external steel frames, brackets, etc., to provide additional support for the building.
Protective measures: such as fireproof coating, anti-corrosion treatment, etc., to protect the reinforced structure from external factors.
6. Functional transformation and reinforcement
Change of use: When the function of the building changes, such as the conversion of an industrial building to a residential building, the structure needs to be re-evaluated and reinforced accordingly.
Additional layer or expansion: To increase the floor or expand the area on the original basis, it is necessary to strengthen the underlying load-bearing structure to ensure the stability of the new structure.
Construction precautions
1, safety first: Before construction should do a detailed risk assessment to ensure the safety of personnel and building structure in the construction process.
2, professional design and supervision: the reinforcement project should be designed by a professional design unit with corresponding qualifications, and there is a professional engineer supervision and guidance throughout the construction.
3, material and process selection: the selection of high-quality building materials, strict implementation of construction technology standards, to ensure that the reinforcement effect lasting effective.
4, legal compliance: All reinforcement projects must comply with local laws and regulations, and obtain the necessary approval and permission documents in advance.
In a word, the reinforcement construction of building settlement covers a wide range and involves all levels of the building structure, which needs to be carefully designed and carefully implemented according to specific building characteristics, use needs and safety standards, so as to achieve the purpose of improving building safety and extending service life.