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Seismic support is a device used to strengthen building structures, mainly used to improve the seismic performance of buildings. When an earthquake occurs, seismic supports can effectively reduce the vibration of buildings, protect the safety of personnel, and reduce the degree of damage to buildings. This article will provide a detailed introduction to the definition, classification, application fields, and design principles of seismic supports.
1，Definition of seismic support
Seismic support is a device used to reinforce building structures, mainly composed of support rods, support seats, connectors, etc. Its main function is to enhance the seismic performance of the building by strengthening the connection points between the building and the ground.
2，Classification of seismic supports
According to their different structural forms and application methods, seismic supports can be divided into the following categories:
1. Hydraulic seismic support: It uses a hydraulic system to control the lifting of the support rod, and supports and releases the building by adjusting the opening and closing of the hydraulic valve.
2. Spring type seismic support: The main component of the support rod is the spring, which is used to support and release the building by adjusting the tension of the spring.
3. Rubber bearing seismic support: Rubber material is used as the main component of the support, and the deformation of the rubber is used to support and release the building.
4. Reinforced concrete seismic support: The main component of the support is made of reinforced concrete material, which supports and releases the building through the strength and stiffness of the reinforced concrete.
3、 Application Fields of Seismic Supports
Seismic supports are widely used in various building structures, especially in earthquake prone areas and high-rise buildings. The following are the main application areas of seismic supports:
1. High rise buildings: Due to their susceptibility to significant seismic forces during earthquakes, the application of seismic supports in high-rise buildings is particularly important. By installing seismic supports at the bottom of a building, it can effectively reduce the vibration of the building and improve its seismic performance.
2. Bridge engineering: Bridges are one of the structures that are prone to damage during earthquakes, so seismic supports are widely used in bridge engineering. By installing seismic supports at the support and connection points of the bridge, it can effectively reduce the vibration of the bridge during earthquakes and protect the structural safety of the bridge.
3. Industrial buildings: Industrial buildings are usually composed of large steel structures and are susceptible to earthquakes. By installing seismic supports at the support and connection points of industrial buildings, it is possible to effectively reduce the vibration of industrial buildings during earthquakes and improve their seismic performance.
4. Underground structure: Underground structures are usually composed of concrete and are easily affected by earthquakes. By installing seismic supports at the support and connection points of underground structures, it can effectively reduce the vibration of underground structures during earthquakes and protect the structural safety of underground structures.
4、 Design principles of seismic support
The design of seismic supports needs to follow the following principles:
1. Strength and stiffness: The strength and stiffness of seismic supports need to meet the force and displacement requirements of the building during earthquakes to ensure the structural safety of the building.
2. Adjustability: Seismic supports need to have a certain degree of adjustability.

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