The characteristics of building seismic isolation products mainly include the following aspects:
Good seismic isolation performance: Seismic isolation bearings can effectively reduce the transmission of seismic energy to the upper structure. When an earthquake occurs, it can absorb and dissipate seismic energy through its own deformation, thereby reducing the seismic effects on the superstructure. Compared with traditional earthquake-resistant structures, the acceleration response of the upper structure after seismic isolation can be reduced by several times or even dozens of times, greatly improving the safety of the building during earthquakes.
Improve the seismic safety of the structure: Seismic isolation bearings can isolate ground motions and avoid or significantly reduce earthquake damage to the main structure. Under the action of strong earthquakes, traditional structures may suffer from serious cracks, deformation or even collapse, while structures using seismic isolation bearings can maintain better integrity. The presence of seismic isolation bearings improves the stress state of the superstructure during an earthquake, reduces the internal force and deformation of the components, and reduces the risk of structural damage.
Increase the redundancy of the structure: When designing a seismic isolation structure, the seismic requirements of the superstructure can be appropriately reduced, thereby improving the economy of the structure. At the same time, the reliability and durability of the seismic isolation bearings are relatively high. Even if some local damage occurs during long-term use, it will not immediately lead to the failure of the entire structure, providing time and conditions for the maintenance and reinforcement of the structure.
Wide range of application: Seismic isolation bearings are suitable for various types of building structures, including residential buildings, commercial buildings, hospitals, schools, industrial plants, etc. Whether it is a multi-story building or a high-rise building, seismic isolation technology can be used to improve the seismic resistance of the structure. For some special buildings that are sensitive to earthquakes, such as nuclear power plants, large storage tanks, and cultural relics protection buildings, seismic isolation bearings are an effective earthquake-resistant measure.
Economical and environmentally friendly: The use of seismic isolation technology in high-intensity areas can reduce the design of the superstructure, save the use of steel bars and concrete, and thus reduce construction costs. At the same time, 30-80KG of carbon emissions can be saved per square meter, which is conducive to carbon neutrality and green transformation.
Durability and easy maintenance: The durability of the seismic isolation bearing is good and the possibility of replacement after an earthquake is low. Once a replacement is required (especially if some dampers have low fatigue resistance), the replacement is complicated and costly.