Bridge Vibration Isolation Rubber Bearing High Damping Bridge Bearing Hdr Bridge Vibration Isolation Bearing

• Customization: Available
• After-sales Service: Installation Guide
• Warranty: 2 Years
• Model NO.: JT-HD01
• Certification: GB, ISO/RoHS/CE
• Usage: Beam Bridge, Highway Bridge, Railroad Bridge
• Structure: Laminated Rubber Bearing
• Material: Steel Bearing
• Activity: Multi Direction Movable Bearing
• Colour: Gray, Red, Black, Customized
• Shape: Round and Square
• Shear Modulus: 0.8 MPa, 1.0 MPa, 1.2 MPa
• Working Temperature Range: -25 to 60
• Type: Lnr/Lrb/Hdr
• 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. who are we?
We are based in Hebei, China, start from 2013,sell to Domestic Market(40.00%),Southeast Asia(23.00%),Africa(16.00%),North America(7.00%),South America(7.00%),Western Europe(7.00%). There are total about 51-100 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
Bridge Expansion Joint,Rubber Waterstop,Swelling Waterstop Strip,Seismic Isolation Bearing,Rubber Bearing Pad

4. why should you buy from us not from other suppliers?
1.More than 20 professional senior technical personnel.
2.There are 10 series,over 200 species and more than 2,000 specifications.
3.All products have been authenticated by the Ministry of Communications.
4.Self-research and development,professional.

5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES;
Accepted Payment Currency:USD,CNY;
Accepted Payment Type: T/T,L/C,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken:English,Chinese