Lead-Rubber Bearing High Damping Bridge Bearings for Highway Seismic Isolation Bearings
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Product Highlights
- High damping energy dissipation and seismic isolation, effectively absorb vibration impact, buffer structural displacement and stabilize the bridge structure.
- Solve severe shaking, stress concentration and structural damage caused by earthquakes and vehicle loads, reduce bridge damage through efficient energy dissipation.
- Excellent damping performance and strong energy consumption, fatigue and aging resistance, stable performance under extreme temperatures, no failure after long-term repeated deformation.
- Suitable for highway bridges, railway bridges and seismic key projects, improve seismic grade and reduce post-disaster maintenance costs.
- Higher energy dissipation and better seismic performance with stronger stability than ordinary rubber bearings, suitable for high-intensity seismic projects.
Product Attributes
- Customization
- Available
- After-sales Service
- Installation Guide
- Warranty
- 2 Years After Leaving The Factory
- Model NO.
- JT-HD02
- Certification
- DIN, JIS, GB, BS, ASTM, AISI, CE/RoHS
- Usage
- Beam Bridge, Highway Bridge, Railroad Bridge
- Structure
- Laminated Rubber Bearing
- Material
- Rubber Bearing
- Activity
- Multi Direction Movable Bearing
- Color
- Customer Customization
- Steel Plate Shape
- Circle/Rectangler
- Temperature
- -40celsius-+60celsius
- Hardness
- 60-70 Shorea
- Elongation at Break (%)
- ≥400
- Damping Ratio
- ≥25%(Lrb)
- Design Vertical Load
- 100-10000kN
- Feature
- Seismic Isolation, Lead Core Damping
- Application
- Highway Bridge, Railway Bridge,Building
- Transport Package
- According to Customer Needs
- Specification
- 150 - 1000 mm (custom on request)
- Trademark
- HengJingGong
- Origin
- Hengshui, Hebei, China
- Package Size
- 35.00cm * 35.00cm * 20.00cm
- Package Gross Weight
- 30.000kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of Lead-Rubber Bearing High Damping Bridge Bearings for Highway Seismic Isolation Bearings
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Lead-Rubber Bearing High Damping Bridge Bearings for Highway Seismic Isolation Bearings -
Lead-Rubber Bearing High Damping Bridge Bearings for Highway Seismic Isolation Bearings -
Lead-Rubber Bearing High Damping Bridge Bearings for Highway Seismic Isolation Bearings -
Lead-Rubber Bearing High Damping Bridge Bearings for Highway Seismic Isolation Bearings -
Lead-Rubber Bearing High Damping Bridge Bearings for Highway Seismic Isolation Bearings -
Lead-Rubber Bearing High Damping Bridge Bearings for Highway Seismic Isolation Bearings -
Lead-Rubber Bearing High Damping Bridge Bearings for Highway Seismic Isolation Bearings
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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.
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.
Function
*Effective Seismic Isolation: Extends the structural period to avoid the predominant seismic period, significantly reducing the seismic response of the upper structure.
*Energy Absorption: Efficiently dissipates seismic energy through hysteretic deformation (plastic deformation of the lead core or internal friction of high-damping rubber).
*Load Support: Provides high vertical load-bearing capacity and stiffness to stably support the weight of the upper structure.
*Displacement Adaptation: Allows significant horizontal shear deformation to accommodate movements caused by temperature changes, shrinkage, and other factors.
*Energy Absorption: Efficiently dissipates seismic energy through hysteretic deformation (plastic deformation of the lead core or internal friction of high-damping rubber).
*Load Support: Provides high vertical load-bearing capacity and stiffness to stably support the weight of the upper structure.
*Displacement Adaptation: Allows significant horizontal shear deformation to accommodate movements caused by temperature changes, shrinkage, and other factors.
Joint structure
*The HDR (Ⅰ) 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 (Ⅱ) 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.
HDR (Ⅰ) rubber bearing.
HDR (Ⅱ) rubber bearing.
Specification
Characteristics | Requirements | |||
G Modulus (MPa) | 0.7 | 0.9a | 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 | ||||
Installation
Product Details
Packaging & Shipping
Company Profile
Hengshui Jingtong Rubber Co., Ltd., located in Hebei Province's Hengshui City, is a professional manufacturer of engineering rubber products. Our product range includes bridge bearings, expansion joints, water stop strips, water stop belts, inflatable cores, building deformation joint device and water plugs, which are widely used in bridge, tunnel, water conservancy, and power engineering projects. The company boasts advanced technology and mature processes to ensure reliable product quality.
We have a professional technical team and a comprehensive after-sales service system to ensure customers receive high-cost-performance products and attentive service. Hengshui Jingtong Rubber Co., Ltd. is committed to continuous innovation to meet market demands and looks forward to esta blishing long-term cooperative relationships with customers from both domestic and international markets.
FAQ
Q1: What is a lead rubber bearing?
A: It is a laminated rubber bearing with a lead core that damps earthquake energy.
A: It is a laminated rubber bearing with a lead core that damps earthquake energy.
Q2: How does the lead core work?
A: The lead plug yields in shear during a quake and absorbs the input energy.
A: The lead plug yields in shear during a quake and absorbs the input energy.
Q3: What is the difference from a plain rubber bearing?
A: The lead core adds damping, so the bearing controls quake movement as well.
A: The lead core adds damping, so the bearing controls quake movement as well.
Q4: Where are these bearings used?
A: Highway and railway bridges, seismic zone buildings, and viaducts.
A: Highway and railway bridges, seismic zone buildings, and viaducts.
Q5: Does the bearing return to its position?
A: Yes -- rubber shear stiffness brings the structure back to line after a quake.
A: Yes -- rubber shear stiffness brings the structure back to line after a quake.
Q6: What temperature range does it serve?
A: Service temperature is -40°C to +80°C.
A: Service temperature is -40°C to +80°C.
Q7: How long does it last?
A: Design life is over 50 years under normal structure service.
A: Design life is over 50 years under normal structure service.
Q8: Can diameter and damping be customized?
A: Yes -- diameter, layer design, and damping are set to the project.
A: Yes -- diameter, layer design, and damping are set to the project.
About the Supplier
This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASR246343". Items marked "
" are certified.
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Company Profile
HENGSHUI JINGTONG RUBBER Co., Ltd located in Hengshui City, hebei provice, where very close to TianJin City, Beijing city, So convenient transportion. Registered capital is 101 million RMB. It covers an area of 200 thousand square meters, including 3000 square meters workshop, and 2000 square meters for testing, there are more than 200 employees, including 10 engineers and 10 testing workers.
We are specializes in manufacturing and exporting bridge bearings, waterstop waterproof materials, Culvert & Pipeline Inflated Rubber Balloons since the establishment in 2007.
Our products including construction waterproof materials, bridge and building rubber bearings, culvert and pipeline rubber airbag etc. Used in brige highway, culvert, pipeline, building constructions. Adhering to the principle that quality determines the success and failures. Our company pays much attention to quality managements and today we are one of the leading companies owning customers in many countries. To meet different needs of our customer, our company can supply varies types of products.
Our products has passed ISO, GB etc. Inspection and provide the third party reports with more than 3000 projects in domestic, and also export to Malaysia, Kenya, Uganda, USA etc. To suit your specific scheme, waterstops/bearing/rubber balloons etc. Products can be made to order as your designs, even with complex profiles and different materials. So if you want to make a custom order, don't forget to enclose your design drawing, sizes and standards.
Welcome your cooperation.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- The Southeast Corner of Hegang Road Planning Street in Wuyicounty Economic Development Zone, Hengshui City, Hebei Province, Hengshui, Hebei, China
-
Number of Employees
- 14
-
Registered Capital
- 10,000,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays -
Nearest Port
- Tianjin Port,Qingdao Port
-
Minimum Order Quantity
- 20 pcs
-
Supply Chain Partners
- 15
Our Production Capability & Technical Expertise
- Main Products
- Seismic Isolation Bearing, Hydrophilic Waterstop, Bridge Rubber Bearing, Rubber / PVC Waterstop, Customized Rubber / Plastic Products, Elastomeric Bearing Pad, Bridge Expansion Joint, Butyl Sealing Tape, Inflatable Pipeline Plug, Rubber Culvert Balloon
-
Production Lines
- 10
-
Production Machines
- Open mill, Internal mixer, Cutting machine, Kneading machine, Flat vulcanization machine, Coating machine, Laser cutting machine, Steel plate leveling machine, Shot blasting machine, Die-cutting machine
-
QA/QC inspectors
- 1 people
-
Inspection Type for Finished Products
- 100% inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 1 people
-
Traceability of Raw Materials
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2013-04-07
-
Export Year
- 10 Years
-
Main Markets
- North America, South America, Europe, Southeast Asia/ Mideast, Africa, Australia, Domestic
-
Number of Foreign Trading Staff
- 5
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- Yes
Our Certifications, Standards & Industry Recognition
-
Product Certification
- CE
FAQ
- Q1: What is a lead rubber bearing?
- A: It is a laminated rubber bearing with a lead core that damps earthquake energy.
- Q2: How does the lead core work?
- A: The lead plug yields in shear during a quake and absorbs the input energy.
- Q3: What is the difference from a plain rubber bearing?
- A: The lead core adds damping, so the bearing controls quake movement as well.
- Q4: Where are these bearings used?
- A: Highway and railway bridges, seismic zone buildings, and viaducts.
- Q5: Does the bearing return to its position?
- A: Yes -- rubber shear stiffness brings the structure back to line after a quake.
- Q6: What temperature range does it serve?
- A: Service temperature is -40 Celsius to +80 Celsius.
- Q7: How long does it last?
- A: Design life is over 50 years under normal structure service.
- Q8: Can diameter and damping be customized?
- A: Yes -- diameter, layer design, and damping are set to the project.
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