Lead rubber bearing
Lead rubber bearing
Lead rubber bearing

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Design rotation angle: 0.06rad max

Design displacement: Normal shear strain value: 1.0

                                      Earthquake: 2.0

Usage Temperature: 25-60


LRB is made from laminated rubber bearing with a central lead plug and has great energy absorption capability. The laminated bearing is designed to carry the weight of the structure and provide post-yield elasticity. The lead core deforms plastically under shear deformations. 


Property

Metal Material:

1. Carbon structural steel should apply with National standard GB700 (EN10025)

2. Improved structural steel should apply with National standard GB699 ( EN10113)

3. Stainless steel should apply with National Standard GB3280 (EN10088)

 

Elastomer rubber material property: 

Technical property

NR

CR

Tensile strength Mpa

18

17

Aging property

Tensile strength rate

±25%

±25%

Die C

-50%max

-50%max

Test condition

70x168h

100x72h

Bonding performance

90ºmin value of peel strength 7.0N/mm

Compression set

LNR rubber

LBR rubber

Other low damping bearing

<35%

<35%

Test condition

70,24h, compression set 25%

Ozone resistance

Appearance

No crack

No crack

Test condition

5/10³, 20% elongation, 40x96h

Hardness

60±5

60±5


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