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The bearing is composed of several layers of rubber sheet and thin steel plate superimposed by pressure vulcanization, which has enough vertical stiffness to meet the vertical load, and has good elasticity to adapt to the rotation of the beam end. It has large shear deformation to meet the water of the superstructure horizontal displacement, and has a good seismic effect, can reduce the dynamic load on the upper structure and pier impact.
Features of rubber bridge bearing:
(1) Quality materials including natural rubber, neoprene complying with AASHTO standards.
(2) Allow for expansions and contractions of precast steel structure of bridges.
(3) Capable to control load distribution, meanwhile accommodate thermal and end-beam rotational movements.
(4) Vibration, sounds and shocks isolation.
(5) Avoid excessive load eccentricity and edge compression.
(6) Simple but robust structure.
(7) Lower price than laminated elastomeric bearing.
(8) High cost effectiveness.
(9) Minimal maintenance is needed.
Mechanical Properties of Rubber
| Technical index | Neoprene Rubber | Natural Rubber | |
| Hardness (IRHD) | 60±5 | 60±5 | |
| Strength Tensile (Mpa) | ≥17 | ≥18 | |
| Elongation at break (%) | ≥400 | ≥450 | |
| Brittleness temperature (ºC) | ≤40 | ≤-50 | |
| Constant compression permanent deformation | ≤15 | ≤30 | |
| Resistance to ozone aging test (test conditions,20% elongation,40ºC×96h) | 100ppmm | 25ppmm | |
| No cracking | No cracking | ||
| Hot air aging test (The biggest change comparing with before aging numerical) | Test conditions (ºC×h) | 100×70 | 70×168 |
| Strength Tensile (%) | -15 | -15 | |
| Elongation at break(%) | -40 | -20 | |
| Variation in hardness(IRHD) | 0,+10 | -5,+10 | |
| Strength of rubber and steel Peel adhesive (KN/m) | >10 | >10 | |
| Strength of four fluorine plate and rubber (KN/m) | >7 | >7 | |
Table 1. Rectangular Laminated Elastomeric Bearing Sizes (Width* Length/ mm)
| 100*150 | 100*200 | 150*150 | 150*200 | 150*250 | 150*300 | 200*200 |
| 200*250 | 200*300 | 200*350 | 200*400 | 250*250 | 250*300 | 250*350 |
| 250*400 | 250*450 | 250*500 | 300*300 | 300*350 | 300*400 | 300*450 |
| 300*500 | 300*550 | 300*600 | 350*350 | 350*400 | 350*450 | 350*500 |
| 350*550 | 350*600 | 400*400 | 400*450 | 400*500 | 400*550 | 400*600 |
| 400*650 | 450*450 | 450*500 | 450*550 | 450*600 | 450*650 | 500*500 |
| 500*550 | 500*600 | 500*650 | 500*700 | 550*550 | 550*600 | 550*650 |
| 600*600 | 600*650 | 600*700 | 600*750 | 650*650 | 650*700 | 650*750 |
| 700*700 | With or without the PTFE plate | |||||
Table 2. Round Laminated Elastomeric Bearing Sizes (OD/ mm)
| 150 | 200 | 250 | 300 | 350 | 400 | 450 |
| 500 | 550 | 600 | 650 | 700 | 750 | 800 |
The elastomeric rubber bearings are widely used in bridges, buildings, roads, railways, and other engineering projects. They primarily serve to transmit the load from the superstructure and alleviate displacement and deformation caused by temperature changes, concrete shrinkage, and uneven foundation settlement. Due to their excellent elasticity, seismic performance, and durability, plate rubber bearings play a crucial role in various engineering projects, especially in seismic design, where they effectively reduce the damage to structures caused by earthquakes.
We are the manufacturer of construction engineering products which are used for highway,railway, bridge, tunnel. Hebei Shangze Rubber and Plastic Products Co., Ltd, Our company was founded in 2020-12-21. The company address is at No. 90, Sunwuying Village, Masen Township, High tech Zone, Hengshui City, Hebei Province. The main industries are Rubber and plastic products industry. Our company is sincerely willing to cooperate withenterprises from all over the world in order to realize a win-win situationsince the trend of economic globalization has developed with anirresistible force. Welcome to communicate and negotiate at any time.
View more products,you can click the product keywords below...
https://hebeishangze.en.made-in-china.com/?pv_id=1i55avap37b9&faw_id=1i55avc68a11
Q1: Can I place a sample order for your products?
A: Yes,we welcome sample order to test and check quality,Mixed samples are acceptable,for small quantity we can provide for free
Q2: How to deal with the faulty?
A: Firstly,our products are produced in strict quality control system and the defective rate will be less than 0.2%
Secondly,during the guarantee period,we will send new pipes with new order for small quantity.For defective batch products,we will repair them and resend them to you or we can discuss the solution accoring to real situation
Q3: What is your MOQ?
A: Most products we have stocks,so any quantity can acceptable,for customized ordered should be 500pcs for each item.
Q4: The price of your products is higher than others.
A: We can't promise you the best price, but we can promise you the best quality. Our products are made of imported raw material and produced in strict quality control system,it is also has strictly testing and quality checking procedure before packing and shipping
Q5: Which items are you manage?
A: PPR,HDPE,PE-RT,PVC,CPVC,PVC-U series
Q6: How can i get assurance from you?
A: You can trade with us through MIC assurance order, it will keep safty for your order
Q7: Can i visit the factory firstly before place order?
A: We are warmly welcome all the customer friends visit us and learn us
Q8: Leading time
A: Stocks, goods will be ready in 7 days after receive deposite,customized goods will be ready in 15 days after receive deposite
Exactly leading time pls confirm with sales before ordered
Q9: Payment terms
A: Payment by TT 30% deposit ,70% balance against BL copy
L/C,Payple,western union,moneygram and others also can accept against different situation
Pre-sales
* Prompt reply .* Reasonable price.
*Free sample available.
*customers designs and logo are welcomed
After-sales
*On time delivery.
*Care about cautomer what products to use.
*Updated new product and price let you know.
*Product warranty time must be ensure.
