Isolators Base System Rubber Bearing High Damping Bridge Bearing Hdr Bridge Rubber Bearing Elastomeric Bearing Pads for Bridges and Constructions

• Customization: Available
• After-sales Service: 24 Hours-7 Days-Available
• Warranty: 8years
• Model NO.: JT56EW
• Certification: GB, BS, ASTM, CE, ISO
• Usage: Beam Bridge, Highway Bridge, Railroad Bridge, Building
• Structure: Laminated Rubber Bearing
• Material: Rubber and Steel
• Activity: Multi Direction Movable Bearing
• Name: Isolators Base System Rubber Bearing
• Leading Time: 15days
• Top Plate Shape: Square/Circle
• Print Stanard: ISO Print Standard
• Steel Plate Thickness: 22-25mm
• Customized: Customized
• MOQ: 1 Set
• Transport Package: with Film on Pallet
• Specification: LNR300/400/500/600/700/800/900/1000
• Trademark: HENGJINGGONG
• Origin: China
• HS Code: 40169990
• Production Capacity: 10000 PCS Per Year
• Package Size: 30.00cm * 30.00cm * 20.00cm
• Package Gross Weight: 100.000kg

Product Description

Product Description

    Isolators Base made in China Seismic Isolator Base for construction made in China seismic Lead rubber bearing for construction buildingService Loading Seismic Lead Rubber Bearing (LRB)
    Lead core rubber bearing,applied to building and bridge constructions, is a practical and cost-effective choice for seismic isolation. It is composed of laminated elastomeric bearing pad, top and bottom sealing & connecting plates and lead plug inserted in the middle of the bearing as shown in the following picture.
    Isolators Base system rubber bearing
Features:

1. Simplicity in Structure: High damping rubber bearings are structurally simpler compared to conventional natural rubber bearings and lead-core rubber bearings.

2. Stable Mechanical Properties: High damping rubber bearings possess stable mechanical properties, making them an excellent choice for base isolation structures.

3. Strong Energy Dissipation Capacity: These bearings have a strong energy dissipation capacity, achieved through rubber modification techniques, with damping performance far superior to that of pure natural rubber.

4. High Equivalent Damping Ratio: High damping rubber bearings can achieve an equivalent damping ratio of over 20%, thereby enhancing the seismic isolation effect.

5. Environmentally Friendly: The use of high damping rubber materials instead of lead cores prevents lead leakage into the surrounding environment in case of bearing damage, making them suitable for areas with special environmental protection requirements.

Application

High Damping Rubber Bearings (HDRB) are primarily applied in the following areas:

1. Seismic Isolation Buildings: Used in new constructions to mitigate the impact of earthquakes.
2. Bridge Engineering: Employed in bridges to accommodate thermal expansion and seismic isolation.
3. Highway Bridges: Utilized for isolating seismic forces and accommodating thermal movements of bridges.
4. Special Environmental Regions: Preferred in regions with high environmental protection requirements due to their eco-friendly nature.
5. Areas with Enhanced Seismic Response: Provide better isolation effects in regions where seismic responses may be significantly amplified.

 
How does lead rubber bearing work?

During the earthquake, the un-isolated building will vibrate back and forth in varying directions due to the inertial forces and result in deformation and damages of the building. In contrast, the base isolated building will also displace but remains its original shapes and avoid damages - that is because the lead rubber bearing effectively dissipates the inertial force upon the building, extends the building's period of vibration and decrease the acceleration of the building.
The lead plug will slid with laminated rubber during earthquake but convert this energy of movement to heat so that it efficiently reduces the inertial force upon the building, which slow the vibration of the building. Meanwhile, the rubber part will preserve its original shape due to high elasticity.
 

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

 

Damping Ratio	0.1 - 0.3
Maximum Damping Force	500 N
Damping Frequency	10 Hz
Frequency Response Curve	-
Energy Dissipation Rate	0.2 J/s
Operating Temperature Range	-20°C to 80°C
Expected Service Life	10 years

Detailed Photos

Installation Instructions

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, 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 establishing long-term cooperative relationships with customers from both domestic and international markets.

Our Services

1. Advanced and Sufficient equipment More than 100 sets of most advanced equipment in our workshop ensure timely delivery time for large orders. Additional, it can ensure standardized production, which accord with international standard.
2. Experienced and skilled worker team Equipped with professional production skills and several years experience, our worker team can improve production efficiency and reduce production losses for cost reduction.
3. Multiple models for completed products We have almost all of standard bearing pad models to produce standard bearing pads, including pot bearing, laminated bearing pad, spherical bridge bearing, high damping rubber bearing and lead rubber bearings.
4. Perfect Package & Timely delivery All the products are inspected before loading, then they will be perfectly packed. Then our skilled loading team will operate the equipment for easy and fast loading.
5. Professional sales team Full knowledge of bearing pad products, good spoken and written English and excellent communication skills can offer you the best solutions to your questions. You can ask for recommendation, customized service and any other information you want from them.

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

Contact Information:
Nancy
Add:Nanwangzhuang village,Hengshui City,Hebei Province,China
Hengshui JingTong Rubber Co.,LtD
 

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