Basic Info.
Usage
Beam Bridge, Highway Bridge, Railroad Bridge
Structure
Laminated Rubber Bearing
Activity
Multi Direction Movable Bearing
Main Material
Neoprene Rubber/Natural Rubber/EPDM Rubber
Product Name
Bridge Neoprene Pads with Round Rectangle Shape
Product Description
Company Introduction:Founded in 2013, Qingdao BLESS Industry is a professional manufacturer of road/carpark safty products in the coastal city of Qingdao.
Our business is involved in the manufacturing and exporting of culvert balloon ,pneumatic tubular balloon, rubber wheel stopper, rubber speed hump, rubber corner guard, road stud, gardrail delineator,etc.1-Rubber BearingElastomeric bearings act as elastic load-transferring connections between structural elements which must be able to move or rotate relative to each other. They can be designed to transmit vertical and horizontal forces from the superstructure to the substructure, without constraints. They also accommodate rotations about any axis and-where appropriate-movements of the superstructure.
2-Classification (1)Laminated plate rubber bridge bearing
It is made of multi-layer rubber sheet and steel plate after bonding, mould pressing and vulcanization. With sufficient stiffness in vertical direction ,it can transmit the counter-force of the upper structure to the abutment reliably .And also it has good flexibility to adapt to the rotation of the beam end and shear deformation the horizontal displacement of upper structure.
The main function of laminated rubber bearing is transmitting the counter-force of the upper structure to the abutment reliably , and at the same time completing the required deformation of beam structure (horizontal displacement and diversion). Laminated rubber bearing has sufficient rigidity in the vertical direction to ensure the bearing will deform less even under maximum load in the vertical direction; rubber bearing has certain flexibility in the horizontal direction and it can adapt to the horizontal displacement caused by braking force, temperature, concrete shrinkage and load; meanwhile ,it also can adapt to the rotation of the beam end.(2)PTFE rubber bridge bearing
PTFE sliding rubber bearing is also called PTFE sliding bearing, such as (GJZF4, GYZF4 series ). It means adhere a layer of Teflon plate with thickness between 1.5mm-3mm on the surface of laminated rubber bearing. The use of Teflon sliding can make friction coefficient between the beam bottom become very low ,and make the horizontal displacement of the upper structure do not be limited by of shear deformation of the bridge bearing itself . In this way , it can meet the demands of large displacement bridge.Except the function of spherical cap bearing ,this product is especially applicable for large displacement bridge. The characteristics of PTFE sliding bearing are simple structure, low price, no need of maintenance, easy replacement, buffer and shock insulation, low building height and so on.
3-SpecificationCharacteristics | Requirements |
Material | CR | NR | EPDM |
Hardness | 60±5 | 60±5 | 60±5 |
Tensile strength / MPa | 17.0 | 18.0 | 15.0 |
Elongation at break / % | 400 | 450 | 350 |
Brittle temperature ºC | -40 | -50 | -60 |
Compression set % | 15 | 30 | 25 |
Tensile bond strength between rubber & steel plate MPa (kgf/cm2) | ≥3.0 | ≥3.0 | ≥3.0 |
Constant compression deformation%(70ºC×22h) | ≤25 | ≤25 | ≤25 |
Air aging | Testing Conditions ºC×h | 100×72 | 70×168 | 100×70 |
variation in hardness (shore A) | 0-10 | 0-10 | 0-10 |
Tensile Strength change rate (Mpa) | ≥-10 | ≥-15 | ≥-10 |
Elongation at break change rate % | ≥-30 | ≥-20 | ≥-20 |
Ozone Aging IPPM30ºC×100h | No crack |
Bending fatigue | No crack after bending 6×10 times |
Item | Index |
Ultimate compression strength Rd /MPa | ≥60 |
Compression modulus of elasticity E1/ MPa | E±E×20%E |
Shear modulus of elasticity G1 / MPa | G±G×15%G |
Allows maximum shear deformation tg α | ≤0.7 |
shear deformation produced by fast loading tg α | ≤0.25 |
Anti-sliding friction coefficient | Against steel | 0.2 |
Against concrete | 0.3 |
4-Material
A. Neoprene bearing(applicable temperature -25~60ºC
B. NR bearing (applicable temperature -35~60ºC
C. EPDM bearing (applicable temperature -40~60ºC
5-Structure
6-Photos of rubber bearing
7-Package8- RFQA. How to place the order?
Inform us the product name, size, quantity via email or telephone.B. Payment items?
30% T/T as deposit in advance, the balance should be paied before shipment.C.Leading time?
Depends on your quantity, normally 7-10days.D. Can you help arrange shipment?
Yes, We can help arrange shipment by air, sea.
9-Contact
Elastomeric Seismic Isolation Sliding Rubber Bearing Pad For Bridges
Address:
8-2-401, No. 316 Wenchang Road, Qingdao, Shandong, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Construction & Decoration, Industrial Equipment & Components, Security & Protection
Management System Certification:
ISO 9001
Company Introduction:
Qingdao Bless industry&trade Co., Ltd was founded in 2017, locates in China′s rapid development economic area-Qingdao city, Shandong province.
We have won very good reputation in the world market as a professional manufacturer & exporter of rubber and plastic products, including culvert balloon, pneumatic tubular form, water&gas bladder, rubber wheel stopper, rubber corner guard, speed bump, road stud.
Our products have been exported to more than 20 countries, such as. The USA, Canada, Japan, EU, Southeast Asia, Middle East etc. We have an outstanding team of design, R&D and processing. Since its establishment, we have provided a number of services for well-known enterprises with parts designing and processing services. " Precision, Refinement, Excellence" are our service principle. Our company is equipped with lathes, Injection machines, milling machines, grinding machines, line cutting and other equipment etc.
We sincerely look forward to cooperate with the customers all around world.