First, the necessity of building structure reinforcement.
Over time, buildings can be affected by various factors, such as natural disasters, wear and tear of use, and aging, which lead to a decline in its structural performance and potential safety hazards. Therefore, the reinforcement of building structures is particularly important. By reinforcing a building, it can enhance its structural strength and stability, improve durability and safety, and extend the service life of the building. At the same time, the reinforced building can better adapt to the needs of modern society and improve the use function and value.
Second, the basic principles of building structure reinforcement.
1.Principle of safety and reliability: The reinforcement design should fully consider the structural characteristics and stress conditions of the building, and take effective reinforcement measures to ensure the safety and reliability of the reinforced structure.
2.The principle of economic reasonableness: the selection of the reinforcement scheme should fully consider the actual situation and economic benefits of the project, and select the appropriate reinforcement materials and methods to reduce the project cost under the premise of ensuring safety.
3.The principle of convenient construction: the reinforcement design should try to choose methods and materials that are convenient for construction and simple to operate, so as to reduce the difficulty and duration of construction and improve the efficiency of the project.
4.Principle of energy conservation and environmental protection: environmental protection materials and energy-saving technologies should be used as much as possible in the reinforcement process to reduce the negative impact on the environment, save energy and achieve sustainable development.
Third, the method of building structure reinforcement.
1.Increase cross-section reinforcement method: By increasing the cross-sectional area of the component, the bearing capacity and stability of the component are improved. It is suitable for the reinforcement of beams, plates, columns and other components. The method is simple to construct and has a wide range of application, but it will increase the self-weight and occupied space of the component.
2.Externally bonded steel plate reinforcement method: paste steel plate on the surface of the component to improve the bearing capacity and stability of the component. It is suitable for the reinforcement of beams, plates, columns and other components. The construction of this method is simple and fast, but it has high requirements for the external environment and requires professional binders and construction technology.
3.Fulcrum reinforcement method: reduce the span and deformation of the structure by increasing the support points, and improve the bearing capacity and stability of the structure. It is suitable for the reinforcement of beams, plates, arches and other structures. This method is simple and effective, but it will change the force distribution and appearance of the original structure.
4.Prestress reinforcement method: change the stress state of the original structure by applying prestress, and improve the bearing capacity and stability of the structure. It is suitable for the reinforcement of beams, plates, arches and other structures with large spans or high stress conditions. This method can reduce the deflection and crack width of the component, but it requires professional prestressing equipment and construction technology.
5.Carbon fiber composite reinforcement method: carbon fiber composite materials are used to reinforce the components, which has the characteristics of high strength, light weight and corrosion resistance. It is suitable for the reinforcement of components of various structures and shapes. This method is simple and fast to apply, but requires a professional carbon fiber cloth and binder.
Fourth, the construction process of building structure reinforcement.
1.Preliminary investigation and evaluation: Conduct detailed structural inspection and evaluation of the buildings that need to be reinforced, understand their structural characteristics and damage degree, and provide a basis for reinforcement design.
2.Reinforcement scheme design: According to the preliminary investigation and evaluation results, combined with the actual situation of the building and the needs of the owner, the design of the reinforcement scheme is carried out. Consider various factors to select the appropriate reinforcement method and material.
3.Construction organization and preparation: According to the reinforcement plan, formulate a detailed construction organization plan and preparation. Including the selection of construction teams, the procurement and processing of materials, the leasing and commissioning of equipment, etc.
4.Reinforcement construction: construction is carried out in accordance with the reinforcement plan and construction organization plan. Quality supervision and control should be strengthened during the construction process to ensure that the construction quality meets the requirements. At the same time, attention should be paid to construction safety and necessary protective measures should be taken.
5.Quality inspection and acceptance: After the reinforcement construction is completed, the reinforcement effect is tested and accepted. Through testing and acceptance, confirm whether the reinforcement effect meets the expected goals, and if there are problems, they should be dealt with and improved in time.
6.Post-maintenance and management: The reinforced building should be maintained and managed regularly. Regularly inspect the use status and performance changes of the reinforcement parts, find and deal with potential problems in a timely manner, and ensure the safety and durability of the building.
5. Precautions for building structure reinforcement.
1.In the process of reinforcement design and construction, the overall structural performance and safety of the building should be fully considered to avoid causing new damage or hidden dangers to the original structure.