Hdr High Damping Rubber Bearing for Bridge Building Construction

• Customization: Available
• After-sales Service: Installation Guide
• Warranty: 2 Years After Leaving The Factory
• Model NO.: JT473DS
• Certification: CE/ISO
• Usage: Beam Bridge, Highway Bridge, Railroad Bridge, Building
• Structure: Laminated Rubber Bearing
• Material: Steel Bearing
• Activity: Multi Direction Movable Bearing
• Name: Hdr High Damping Rubber Bearing for Bridge
• Design: Acceptable as Per Detailed Construction Details
• Print: ISO Print Standard
• Steel Plate Shape: Circle/Rectangler
• Transport Package: in Wovenbag
• Specification: CE/ISO
• Trademark: HengJingGong
• Origin: China
• HS Code: 40169990
• Production Capacity: 10000PCS Per Year
• Package Size: 40.00cm * 40.00cm * 20.00cm
• Package Gross Weight: 40.000kg

Product Description

Product Description

High Damping Rubber Bearing - Fixed and Sliding Types for Large Displacement

High damping rubber bearing, also called HDR bearing pad, is one of seismic isolation bearing. It has excellent seismic isolation performance to effectively reduce the bridge damage caused by earthquake.

HDR bearing pad is composed of specialized designed rubber with high damping performance, sandwiched together with steel plate layer. When installing, the high damping rubber bearing is commonly used with top and bottom steel plate and connection accessories.

Working Principle:

During earthquake, the vibration from various directions will impact fixed base building and results in deformation and building or bridge damages. The high damping bearing pad is improved through high damping material, which the damping ratio can approach to 15% to 18%.

When the earthquake comes, the high damping rubber bearing will increase the horizontal displacement through rubber shear deformation and reduce friction coefficient. The large displacement can weaken the vibration from all direction and reduce the damage of building and bridges.

Joint structure

• The HDR (1) rubber bearing. It is designed with top and bottom embedded steel plate. And the rubber bearing is connected with pier and beam by sleeve. The top and bottom loading plate is connected with sleeve by anchor bolt. The top and bottom embedded steel plate is connected with sleeve by welding.
• HDR (2) rubber bearing. It is designed with top embedded steel plate and without bottom embedded steel plate. The bottom loading bearing is connected with sleeves with anchor bolts. The top embedded steel plate is connected with top loading plate with shear tenon. And the top embedded steel plate is connected with sleeve by welding.

Product Parameters

Specifications

• Working temperature range: -40 °C to +60 °C.
• Rad: 0.006 rad and 0.008 rad.

• Damping ratio:

  • HDR (1) bearing rubber: 15%.
  • HDR (2) bearing rubber: 12%.
  • LNR bearing rubber: 10%.

Characteristics	Requirements
G Modulus (MPa)	0.7	0.9^a	1.15
Tensile strength (MPa)	Moulded Test Piece	≥16	≥16	≥16
Test Piece From Bearing	≥14	≥14	≥14
Minimum Elongation at Break (%)	Moulded Test Piece	450	425	300
Test Piece from Bearing	400	375	250
Minimum Tear Resistance (kN/m)	CR	≥7	≥10	≥12
NR	≥5	≥8	≥10
Compression Set (%)	CR 24 h, 70 °C	≤15
NR 24 h, 70 °C	≤30
Accelerated Ageing (Maximum change from unaged value)
Hardness (IRHD)	NR 7d, 70 °C	-5+10
CR 3d, 100 °C	±5
Tensile strength (%)	NR 7d, 70 °C	±15
CR 3d, 100 °C	±15
Elongation at break (%)	NR 7d, 70 °C	±25
CR 3d, 100 °C	±25
Ozone Resistance	Elongation: 30%, 96 h	No cracks
40±2 °C
NR 25 pphm
CR 100 pphm

Feature:

• Excellent horizontal displacement. absorb shock energy effecively.
• Excellent reset structure. there is no residual displacement.
• High damping material. 10% to 18% damping capacity for shock absorption.
• Wide range structure for different environments and displacement requirements.
• Economical and high performance for lower total construction budget.
• Easy installation and replacement for lower maintenance cost.

Detailed Photos

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