High damping rubber bearing
hit: 66727 ¡æ
contact usTEL: +8613132415777
ADD: Hengshui City, Hebei Province, China
The HDR high damping rubber bearing, Its structure is the same as ordinarylaminated rubber bearings, high damping rubber bearing is improved through rubber formula, so that the rubber material damping is increased, the bearing's damping ratio can reach 15-18%. This series of bearing is suitable for 9degrees earthquake intensity area of highway and municipal bridge.
Rubber bearing that uses high damping rubber; where the rubber material itself demonstrates spring and damping capability. Generally, separate damper is not required; good for space-constraint installation.
Types of High Damping Rubber Bearing
1.Floating vibration isolation track/board support
Floating vibration isolation track/board support is composed of rubber damping bearing or steel spring damping bearing and viscous coupling wall-beam, its basic principle sets the damping bearing between rail/plate and foundation, this product has good shock absorption performance, suitable for railway, light railand underground rail suspension; all kinds of mechanical vibration isolation.
2.Cultural relics isolation box
Cultural relics isolation box is composed of core shock/vibration base and housing, has a good vibration damping/ability, applying to earthquake action and external environment vibration excitation of the protection of cultural relics.
3.Vibration isolation platform
Vibration isolation platform has core energy shock/vibration bearing, has a good ability to reduce shock/vibration, used for all kinds of high precision equipment instrument, banking system, network system, and other important data protection, prevent earthquake and vibration causing damage to the environment.
4.Bridge isolation bearing
Bridge isolation bearing is very stiff in nature, however, during earthquake, it becomes very flexible in horizontal direction so that it can reduce the earthquake force upon the bridges by changing its own shape. Most of all, it can spring back to its original shape after earthquake owing to high elastomeric property.
Sketch Map of High Damping Rubber Bearing
Since its hysteresis curves are relatively smooth, seismic isolation effect can also be expected for in-building precision equipments, etc., rather than for buildings only. Rubber material has two different kinds of elastic modulus(refer red as E0.4, X0.6R), it's also applicable to light column load.
Good Successful Case of Isolation Bearing
In fact, as early as the mid-1990-s, building isolation rubber bearing showed its excellent isolation performance. The region of an earthquake, Osaka and kobe,Japan is the real one. On January 17, 1995, Japan kobea 7.2 -magnitude earthquake, caused the shocking heavy losses. In the earthquake, 35 kilometers from the epicenter in the west of the post office, the base isolation technology has played a very good isolation damping effect, in the fieldof earthquake hazard level has reached the degree of 7 (equivalent to China's earthquake intensity of 9~10 degrees), in the earthquake and after theearthquake, the whole building is as usual.