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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
Lead rubber bearing, also called lead core rubber bearing, LNR rubber bearing, has similar structure with high damping rubber bearing. It is an important component of seismic isolation bearing. It is composed of laminated rubber bearing and lead core. The lead core can not only bear the heavy load and horizontal force, but also absorb energy through plastic deformation of hysteresis damping.
Lead rubber bearing can be divided into round and rectangular shapes for different application. Additional, the lead core quantity can be single or multiple to supply maximum flexibility in the bridges or building.
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.
| 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 |
Hengshui Jingtong Rubber Co., Ltd. is a comprehensive company engaged in water stop, waterproof materials, bridge building isolation materials, engineering rubber used in supporting projects such as highway bridges, tunnels, water conservancy, electric power, railway, etc. Relying on China Hengshui Rubber City Hengshui, the company has its own production capacity. It is a new rising show in the domestic engineering rubber industry, with advanced technology, mature technology and reliable quality.Jingtong rubber covers an area of 98000 square meters, with a building area of 45000 square meters. There are 20 professional senior technicians, and a diligent and dedicated management team. All employees provide high cost-effective engineering rubber products for new and old customers with scientific management, rigorous and realistic working attitude and honest and reliable service concept.The waterproof roll produced by the company has excellent performance, long service life, wide application range, safety,simplicity, high temperature resistance, 90 ºC does not flow, low temperature - 25 ºC does not embrittle. It can be used for waterproofing of buildings, basements, bridges, parking lots, roofs, gardens, swimming pools, reservoirs, tunnels and other projects of industrial and civil buildings. This product has good low temperature flexibility and elastic extension, especially suitable for buildings in high cold area. With high quality products and complete specifications, the company adheres to the working policy of high starting point, high standard, high quality and high efficiency, actively introduces technical talents and takes the road of prospering the factory through science and technology. The company strives for survival by quality, develops by prestige, and provides perfect after-sales service. We sincerely welcome friends from all walks of life. Now the company mainly produces and sells "HENGJINGGONG" brand building materials, including: Rubber / PVC / EVA waterstop, water swelling waterstop rubber, building sealant, butyl sealing tape, SBS modified asphalt waterproof roll, butyl waterproof roll, bridge building isolation bearing, bridge rubber bearing, plate rubber bearing (rubber pad), basin type rubber bearing, spherical bearing, bridge expansion device , bridge rubber inflatable core mold (hollow board air bag), rubber air bag (pipe stopper, rubber water bag) and other bridge engineering and waterproof engineering products.
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
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