Anisotropic Friction Pendulum Seismic Isolation Bearing
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Anisotropic Friction Pendulum Seismic Isolation Bearing
Overview
The bearing utilizes the pendulum principle to extend the longitudinal and transverse vibration periods of bridge structures, achieving seismic isolation. Key seismic isolation parameters in the longitudinal and transverse directions can differ for better isolation performance and a longer service life. Energy dissipation during earthquakes is achieved through friction at sliding interfaces.
Scope of Applications
Ideal for regions with high seismic intensity, applicable in long-span bridges, railway continuous box girders, etc. to replace conventional friction pendulum bearings and other seismic isolation bearings.
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Exceeds 100MNVertical load capacity
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Exceeds 500mm/sUltimate shear peak velocity
Features
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Anisotropic | Decoupled Longitudinal and Transverse PerformanceCompared to conventional friction pendulum bearings, the anisotropic friction pendulum seismic isolation bearing significantly reduces size, lowering the required pier-top area. This reduces overall bridge reinforcement and concrete usage while maintaining the same swing capability at any angle as conventional friction pendulum bearings. Further extends the bearing's service life.
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Extended Lifespan
Building upon traditional friction pendulum seismic isolation bearings, this product separately configures parameters such as sliding radius, sliding displacement, and friction coefficient for longitudinal and transverse curved surfaces, accounting for differences in bridge vibration periods and displacement responses under seismic loads. Ensures a longer service life.
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