Bridge Rubber Elastomeric Bearing Pad Seismic Isolation Bearing

• Customization: Available
• After-sales Service: Technical Guidance
• Warranty: 1 Year
• Usage: Beam Bridge, Highway Bridge, Railroad Bridge
• Structure: Laminated Rubber Bearing
• Material: Rubber Bearing
• Activity: Multi Direction Movable Bearing
• Customization: Available
• Models: Gbzj, Gbzy, Gbzjh, Gbzyh
• Shape: Round, Rectangle
• Color: Black
• Transport Package: Export Standard Packing
• Specification: 100*150-700*700 D150-800mm
• Trademark: SZ
• Origin: China
• HS Code: 4016999090
• Production Capacity: 50000PCS/ Year

Product Description

Product Description

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.

 

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

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

 

 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
With or without the PTFE plate

Contact:
Ms. Jane
Export Manager