Cushion Seismic High Damping Bridge Bearing Seismic Isolation Bridge Elastic Bearing Seismic Cushion Bearing Pads

• Customization: Available
• After-sales Service: Installation Guide
• Warranty: 2years
• Model NO.: JT-HD03
• Certification: ISO/RoHS/CE
• Usage: Beam Bridge, Highway Bridge, Railroad Bridge
• Structure: Laminated Rubber Bearing
• Material: Rubber Bearing
• Activity: Multi Direction Movable Bearing
• Shear Modulus: 0.8 MPa, 1.0 MPa, 1.2 MPa.
• Rad: 0.006 Rad and 0.008 Rad
• Working Temperature Range: -25 ºC to +60 ºC
• Model No.: Lnr/Lrb/Hdr
• Horizontal Stiffness: ±50mm
• Horizontal Bearing Capacity: 100-10000kN
• MOQ: 10 Pieces
• Transport Package: According to Customer Needs
• Specification: Regular/Customized
• Trademark: HengJingGong
• Origin: China
• Package Size: 50.00cm * 50.00cm * 20.00cm
• Package Gross Weight: 100.000kg

Product Description

Product Description

High-damping bearings are rubber bearings with high damping properties, mainly used for vibration reduction and seismic isolation in engineering structures such as bridges and buildings. Below is a detailed introduction to high-damping bearings:
Working Principle
 

• Energy Dissipation Mechanism: The rubber material in high-damping rubber bearings dissipates energy through internal frictional heat generation caused by the movement of fibers, plastics, or fine particles like graphite when subjected to shear deformation. The equivalent damping ratio of these bearings is generally between 10% and 20%, about 2 to 4 times that of ordinary plate rubber bearings.
• Adjusting Natural Vibration Period: During an earthquake, high-damping rubber bearings extend the natural vibration period of the structure through their horizontal reciprocating shear deformation. This increases the structure's damping to reduce the transmitted energy and mitigate the seismic response of the upper structure.

Structural Features

• Material Composition: They are mainly composed of high-damping rubber materials and steel plates. High-damping rubber is made by incorporating materials like graphite into natural or synthetic rubber.
• Construction Form: Typically, they consist of the bearing body and upper and lower sealing steel plates, upper pre-embedded steel plates, and anchoring connection components. The bearing body is vulcanized and bonded to the upper and lower sealing steel plates, with no pre-embedded steel plate on the bottom surface. The bottom is connected to the pier or abutment through the lower sealing steel plate using sleeves and anchor bolts.

Product Parameters

Parameter Name	Unit	Specification Range
Damping Ratio	%	≥12
Load Capacity	kN	As per design requirement
Vertical Stiffness	kN/m	As per design requirement
Horizontal Stiffness	kN/m	As per design requirement
Vertical Compression Deformation	mm	≤10
Horizontal Deformation	mm	≤30
Durability	-	Fatigue life over 20 million cycles
Temperature Range	ºC	-40 to +70

Detailed Photos

Installation Instructions

Packaging & Shipping

Company Profile

FAQ

1.  MOQ?
10 pieces
2. Do you have stock?
no. But our delivery time is vert short, usually 10-15 days. we also accept rash order.
3. what's the price?
It mostly determined by the specification. Also relates to quatity that you need.
So contact me for further!
4. payment terms
T/T, LC etc.
5. Do we have quality guarantee?
Of Course!
--from raw material to manufacturing, we have rigid quality control.
--before delivery, we have strict quality inspection.
--Third party inspection is also available at your request.
--We also have ISO, CE certificates.