Bridge Bearing, Rubber Bridge Bearing

Model NO.: RB


Certification: CCC, SGS, CE, ISO


Technics: Vulcanizing


Capacity: 1000-70000kn


Usage: Construction,Bridge


Specification: AASHTO


HS Code: 4016999090




Application: Transportation


Surface Treatment: No


Material: Rubber


Displacement: 50~300mm


Trademark: Haider


Origin: China


Bridge Bearing,Rubber Bridge Bearing



Rubber Bridge Bearing are made of multiple layers of rubber sandwiched with and bound to thin steel sheets, and then through vulcanization.



Its vertical rigidity is sufficient to bear the perpendicular load and to shift the pressure reliably from the superstructure to the piers.



Its elasticity is high enough to suit the rotation of the beam end. Its shear deformation is sufficient to cope with the horizontal displacement of the superstructure.

Standard		JT/T4-2004		BS5400 Section 9.2
Rubber		Natural Rubber	Neoprene CR	Natural Rubber	Neoprene CR
Hardness(IRHD)		60±5	60±5	50±5/60±5/70±5
Tensile Strength (M Pa)≥		18	17	17	15.5
Ultimate Elongation (%)≥		450	400	450/400/350	400/350/300
Compression Set		70 o C×22h		70 o C×22h	100 o C×22h
		<30	<15	<30	<35
Heat Resistance	Test Condition	70 o C×168h	100 o C×70h	70 o C×168h	100 o C×48h
	Change in Hardness	-5,+10	0,+10	<10	<15
	(IRHD)
	Rate of Tensile Strength Reduction(%)	<15		<15
	Rate of Ultimate	<20	<40	<20	<40
	Elongation Reduction
	(%)
Ozone Resistance		25~50pphm,20% strain		25~50pphm,20% strain
		40 o C×96h		30 o C×96h
		No Cracks		No Cracks

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