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Home > Products > Bridge Bearing Series > Elastomeric Bridge Bearing > Rectangle Natural Rubber Bridge Bearing with High Tensile Modulus

Rectangle Natural Rubber Bridge Bearing with High Tensile Modulus

Payment Type: L/C, Western Union

Basic Info

Model No.:  400*600*99 mm or custom

Product Description

Model NO.: 400*600*99 mm or custom

Material: Natural Rubber or Neoprene or EPDM

Size: From 100mm to 1000mm

Hardness: 45-70

Trademark: Jianfeng

Origin: Hengshui City, Hebei Province, China(Mainland)

Usage: Infrastructure Construction, Bridge, Highway

Shape: Rectangle and Circular

Certificate: ISO9000

Tensile Modulus: 15-20

Specification: 450*400*99 mm or custom

HS Code: 4003000000

I Basic information of rubber bridge bearing
Plain elastomeric pads Steel Laminated Elastomeric Bearings PTFE Sliding Elastomeric
Bearing pads
Live Load 110KN 1200KN 1200KN
Dead Load 200KN 2400KN 2400KN
±6mm ±100mm ±200mm
Rotation about
Transverse Axis
Negligible 0.015radians 0.05radians accommodated by
Elastomeric bearing

II Introduction of rubber bridge bearing
Natural Rubber bearing generally consists or interleaving layers of rubber bonded sandwich fashion to steel plates.The whole unit is covered with rubber to afford weather protection.
A bridge basically consists of bridge deck supported by piers.In order to avoid over stressing and
Damage by movements of vehicle and loading to the piers, bridge bearings are used to accommodate these movements so as to reduce the reaction forces and bending movement to within the safety limits of structure.Natural Rubber is an ideal engineering material for bridge bearings as it is highly elastic and sufficiently soft to accommodate these movements without transmitting harmful stress and also it can absorb and isolate energies from impacts and vibrations.

III Types of rubber bridge bearings
• Laminated bearings - an elastomeric bearing containing steel laminates bonded to rubber
• Plain pad bearing - a plain rubber pad containing no steel plates
• Strip bearing - a plain pad bearing for which the length is much greater than the width (>10 times)
Pot Bearing - a bearing consisting essentially of a block of solid rubber enclosed between a metal
Piston and metal cylinder

IV Advantage and performance of rubber bridge bearing
1 Fine technical performance
2 simple structure
3 low price
4 no maintenance
5 easy to change
6 buffering and shock isolating
7 low building height
Elastomeric rubber bridge bearings shall be composed of multiple laminates of elastomeric material separated by steel reinforcing the overall size of the bearings the number of laminates and thickness of laminates are designed in accordance to the requirement of load to be transferred.Bearings having steel plates as reinforcement shall be cast/compression molded / vulcanized as single unit in a mold under pressure and heat.

V Applications of rubber bridge bearing
General elastomeric laminated bearing suits to bridges with span less than 30m and small displacement.Tetrafluoro elastomeric laminated bearing suits to bridges with large span,several spans.
According to the performance characteristics of neoprene, it is mainly used in flame retardant products, oil products, weather resistant products, adhesives, etc., for example, building waterproof sheet, building Sealing Strip, highway caulking material, bridge bearings gaskets, low-voltage wire and cable sheathing, all kinds of sealing products, anti-corrosion lining, adhesive and so on

VI Manufacturing Process of rubber bridge bearing
• Preparation of rubber compound according to specification required
• Preparation of steel plates
• Application of bonding agent to steel plates
• Assembly of compound and plates
• Compression moulding
• Performance Test
• Ready for installation

VII Testes to be carried out for conformity of acceptance on bridge bearing
• Acceptance Testing AASHTO Level I or Level II
• Stiffness in Compression- Vertical Deflection under Load
• Stiffness in Shear-Stress Strain Relation -Shear modules
• Friction Coefficient - between ptfe and sliding plates
• Friction Coefficient - between concrete and bearings.

(Important you need) Laminated Bearing designing:
Our technical and design team can design right type of bearing based on loads provided design bearing for end applications.On receipt of corbel size, load and movement details of requirements, calculations and bearings sizes can be provided based on results on parameters .

Contact information

Sales Manager: Miss Anna Lee

Mobile Phone: +86-15132836877

Tel: 86-318-5106277

Fax: 86-0318-5106277

Website: www.Prolianz.Com

Company: Hengshui Jianfeng Engineering Rubber Co., LTD.

Contact us if you need more details on Rubber Bridge Bearing. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Laminated Rubber Bearing、Elastomeric Bridge Bearing. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Bridge Bearing Series > Elastomeric Bridge Bearing