Lead Rubber Bearing Isolator System to Earthquake Bridge Bearing for Bridge
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| Customization: | Available |
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| After-sales Service: | Installation Guide |
| Warranty: | 2 Years After Leaving The Factory |
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Basic Info.
- Model NO.
- JT/T8
- Certification
- GB, CE/ISO
- Usage
- Highway Bridge
- Structure
- Pull Pressure Bearing
- Material
- Lead Bearing
- Activity
- Multi Direction Movable Bearing
- Application
- Building, Bridge, Highway Bridge
- Shape
- Round, Rectangular
- Name
- Rubber Bearing
- Dimension
- Customzied
- Size
- Customized
- MOQ
- 10 Pieces
- Transport Package
- in Bag, on Pallet
- Specification
- color: black, orange, etc.
- Trademark
- HengJingGong
- Origin
- Hebei, China
- Production Capacity
- 10000
Packaging & Delivery
- Package Size
- 20.00cm * 20.00cm * 20.00cm
- Package Gross Weight
- 20.000kg
Product Description
Product Description
Lead Rubber Bearing – Excellent in Absorb Energy Dissipation and Seismic Isolation
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
The lead rubber bearing has same mechanical properties with laminated rubber bearing. Besides, it has high damping property.
As we all know, the laminated rubber bearing has large displacement deformation in horizontal direction.
In the earthquake, this structure can separate top and bottom structure vibration, enlarge self vibration cycle and reduce seismic force. Besides, the lead core will be squeezed and yielded during the shear process to dissipate Seismic force.
After the earthquake, the lead rubber bearing can help building restore the normal position through dynamic recovery and recrystallization of lead core and shear strain of laminated rubber bearing.
*Vertical loading transfer process: beam → top embedded steel plate → top connecting steel plate → top sealing steel plate → laminated rubber bearing with lead core structure → bottom sealing steel plate → bottom connecting steel plate → pier.
*Horizontal loading transfer process: pier → bottom anchor bolts → bottom connecting steel plate → top sealing steel plate and shear tenon → top connecting steel plate → top embedded steel plate → anchoring components.
The lead rubber bearing has same mechanical properties with laminated rubber bearing. Besides, it has high damping property.
As we all know, the laminated rubber bearing has large displacement deformation in horizontal direction.
In the earthquake, this structure can separate top and bottom structure vibration, enlarge self vibration cycle and reduce seismic force. Besides, the lead core will be squeezed and yielded during the shear process to dissipate Seismic force.
After the earthquake, the lead rubber bearing can help building restore the normal position through dynamic recovery and recrystallization of lead core and shear strain of laminated rubber bearing.
*Vertical loading transfer process: beam → top embedded steel plate → top connecting steel plate → top sealing steel plate → laminated rubber bearing with lead core structure → bottom sealing steel plate → bottom connecting steel plate → pier.
*Horizontal loading transfer process: pier → bottom anchor bolts → bottom connecting steel plate → top sealing steel plate and shear tenon → top connecting steel plate → top embedded steel plate → anchoring components.
Specification
Function of lead core bearing pad
*Top and bottom plates: transfer loading and constraint deformation of lead core.
*Lead plug: dissipate energy and decrease displacement.
*Steel reinforcing plates: increase vertical stiffness and constraint deformation of lead core.
*Internal rubber layers: support structure weight, accommodate rotation and displacement, recovery moving bearing to the original position.
*Rubber cover: protect reinforced steel plates and rubber layers.
Specifications
*Shear modulus: 0.8 MPa, 1.0 MPa, 1.2 MPa.
*Working temperature range: -25 °C to +60 °C.
*Lead core quantity: single or multiple.
*Shape: rectangular and round.
*Technical parameter
*Working temperature range: -25 °C to +60 °C.
*Lead core quantity: single or multiple.
*Shape: rectangular and round.
*Technical parameter
*Rectangular lead rubber bearing specifications.
*Round lead rubber bearing specifications.
*Round lead rubber bearing specifications.
Rectangular lead rubber bearing.
Round lead rubber bearing.
No | Test Item | Technology Requirement | Unit | |
1 | Hardness (Shore A) | 60±5 | HD | |
2 | Tensile Strength | ≥ 18 | MPa | |
3 | Elongation At Break | ≥ 550 | % | |
4 | Compression Set | 709 °C × 24 H | ≤ 30 | % |
5 | Brittleness Temperature | ≤ -50 | °C | |
6 | Ozone Aging(50 PPHM, 20% Elongation, 40 °C × 48 H) | No Creak | – | |
7 | Air Aging | Hardness Change (Shore A) | ≤ +6 | HD |
Tensile Strength Chang Rate | ≤ 12 | % | ||
- | Elongation At Break Chang Rate | ≤ 20 | % | |
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 establishing long-term cooperative relationships with customers from both domestic and international markets.
FAQ
1.When can I get the quotation?
A:We usually quote within 24 hours after we get your inquiry.
A:We usually quote within 24 hours after we get your inquiry.
2.How long can I expect to get the sample?
A:The samples will be ready for delivery in 5-10days. The samples will be sent to you via express and arrive in 5-7days.
A:The samples will be ready for delivery in 5-10days. The samples will be sent to you via express and arrive in 5-7days.
3.How long is the delivery time
A:Usually 10-15 days, depending on the quantity purchased.
A:Usually 10-15 days, depending on the quantity purchased.
4.How can I get a sample to check your quality?
A:After negotiating the price, we will provide you with samples for testing.
A:After negotiating the price, we will provide you with samples for testing.
5.what can you buy from us?
Bridge Bearing Pad,Seismic isolation bearing,Expansion Joint,Rubber Inflatable Airbag,Waterstop Belt/Strip,Steel Expansion Joint,Butyl Tape
Bridge Bearing Pad,Seismic isolation bearing,Expansion Joint,Rubber Inflatable Airbag,Waterstop Belt/Strip,Steel Expansion Joint,Butyl Tape
6.What's payment term?
A:T/T, L/C at sight, Western Union
A:T/T, L/C at sight, Western Union
7. Do we have quality guarantee?
Of Course!
--from raw material to manufacturing, we have rigid quality control.
--before delivery, we have strict quality inspection.
--Third party inspection is also available at your request.
--We also have ISO, CE certificates.
Of Course!
--from raw material to manufacturing, we have rigid quality control.
--before delivery, we have strict quality inspection.
--Third party inspection is also available at your request.
--We also have ISO, CE certificates.
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