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Quick Details

Brand Name: HRBY
material: CR, NR, EPDM
color: black
Size: as customers' requirements
application: shock-absorbing support
Model Number: 007
Place of Origin: China (Mainland)
standard: CE EN 1337-3 or ASTM D4014

Specifications

Description

Steel Reinforced Elastomeric Bearings for Highway and Bridge is made of multilayer Neoprene/EPDM/natural rubber and sheet steel after inlay, conglutinate, vulcanization. It has enough vertical stiffness to support vertical load, and it could deliver the pressure of superstructure to abutment. 


Steel Reinforced Elastomeric Bearings for Highway and Bridge

Application

Steel Reinforced Elastomeric Bearings for Highway and Bridge is finding ever increasing application in today's construction industry-as local load carrying components. It can be used for steel structures, pre-cast concrete structures, standard concrete slabs, etc. this type of bearing is particularly effective in the presence of camber and rotation causing high stress loading on the bearings.  this type of bearings provide an excellent economic solution for applications where structure movements, longitudinal, transverse and rotational are small, provide vibration isolation and are generally simple to install. 

Steel Reinforced Elastomeric Bearings for Highway and Bridge

Features

Our Steel Reinforced Elastomeric Bearings for Highway and Bridge has good elasticity to adapt to turning of beam end.

Elastomeric bearings bears and transmit vertical load & allows movement in any direction in the horizontal plane and allows rotation about any axis in horizontal plane.
3. It has bigger shearing deformation to content horizontal displacement of superstructure.
4. It has simple structure, easy installation, saving steels, low price, easy and convenient conservation and change and so on.

Steel Reinforced Elastomeric Bearings for Highway and Bridge

Technical performance: 

 

Items

Index

Material

CR

NR

EPDM

Tensile Strength MPa (kgf/cm2)

17.0

18.0

15.0

Hardness (shore A)

605

605

605

at break %

400

450

350

TEnsile set at break %

25

25

25

Compression set %

15

30

25

TEnsile bond strength between rubber & steel plate MPa (kgf/cm2)

3.0

3.0

3.0

Brittleness temperature

-40

-55

-60

Constant compression deformation%(7022h)

25

25

25

 

Air aging

 

 

Testing Conditions  h

10072

70168

10070

Variation in hardness  (shore A)

0-10

0-10

0-10

Tensile StrengthChange rate (Mpa)

-10

-15

-10

Elongation at break change rate %

-30

-20

-20

Ozone AgingIPPM30100h

No crack

Bending fatigue

No crack after bending 610 times

 

 

 

 

 

 

Item

Index

ULtimate compression strength Rd /MPa

60

Compression modulus of elasticity E1/ MPa

EE20E

Shear modulus of elasticity G1 / MPa

GG15G

Allows maximum shear deformation tg

0.7

Shear deformation produced by fast loading tg

0.25

Anti-sliding friction coefficient

against steel

0.2

against concrete

0.3