LRB (Lead Rubber Bearing)

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LRB is an isolation system which combines laminated layers rubber bearing with lead plugs; the former bears the load and isolates vibration, and the latter absorbs energy as a damper.

High credibility

Since 1986, architects started to adopt seismic isolations on buildings in Japan; many building constructions shown that the isolation systems such as LRB are highly reliable during earthquakes which include the Great Hanshin earthquake.

High Durability

LRB can satisfy the requirements for stable performance of bearings by supporting loads and allowing elongation and rotation of girders over a long period of time.

High Performance

LRB can be designed according to the size and characteristics of the structure as vibration damping and habitability (trigger) functions can be determined by adjusting the size of the lead plug.