Seismic Lead Rubber Bearing for Bridge

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: JT02
• Certification: GB
• Usage: Beam Bridge
• Structure: Laminated Rubber Bearing
• Material: Rubber Bearing
• Activity: Multi Direction Movable Bearing
• Product Name: Lead Rubber Bearing
• Size: Accept Customized
• Advantage: Long Working Life
• Application: Bridge , Building
• Feature: Seismic Isolation
• Quality: National Quality Standard
• Transport Package: Pallet
• Specification: rubber and steel plate
• Trademark: HengJingGong
• Origin: China
• HS Code: 4016999090
• Production Capacity: 100set/Month
• Package Size: 45.00cm * 45.00cm * 20.00cm
• Package Gross Weight: 30.000kg

Product Description

Product Description

Lead Rubber Bearing (LRB), belongs to seismic isolation bearing. It is composed of special rubber with excellent damping attribute, sandwiched together with layers of steel. Damping is an influence within or upon an oscillatory system that has the effect of reducing, restricting or preventing its oscillations. Thus, bridge bearing made of high damping rubber has excellent vibration reduction ability. Available with excellent flexibility and high restoring ability, high damping rubber bearing can absorb some input energy of the earthquake before the energy is transmitted to the substructure and can be restored after the earthquake.

Product name	Lead Rubber Bearing (LRB)
Size	lrb 300~1200
Materials	Natural Rubber/Inside Steel Plate/Anchorage/Top&Bottom Plate
Technical Suppor	Acceptable

 

 

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.

Types

Laminated Rubber Bearing - Standard and Sliding Types for Different Bridge Span

    The laminated rubber bearing pads are made of several layers of natural rubber with reinforced steel inserted through sulfuration and adhesion. Laminated rubber bearings have enough stiffness and elasticity to transfer all load on bridge span structure to pier. Additional, it can bear the horizontal displacement, rotation and transformation caused by load.
    The laminated rubber bearing pads can reduce the pier vibration and accommodate the horizontal movement on the bridge span structure caused by the temperature changing and thermal expansion.

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.
 

Pot Bearing with Large Load Capacity and Large Horizontal Displacement

Pot bearing is a kind of new type bearing which is composed of pot, elastomeric pad, stainless steel plate, sealing ring and other components. It is designed for bearing the combinations of vertical loads, horizontal loads, longitudinal and transverse displacements and rotations. Pot bearing is ideal bearing for large bridge with the features of large horizontal displacement, light weight, simple structure and easy operation.

Spherical Bridge Bearing - Low Friction and Excellent Accommodation Feature

Spherical bridge bearing, also called spherical bearing, spherical bearing pad, is designed to ensure vertical and horizontal forces transferring under control which is a connection devices between superstructures and substructures. It consists of steel plate enclosed with edge sliding guide and stainless steel panel for sliding controlling, under the stainless steel panel is a PTFE sheet, which is recessed into the steel to a depth and contains a special lubricant to ensure permanent lubrication of the sliding surfaces. Then there is a stainless steel panel with a convex bottom face to facilitate rotations. The bottom component is concave steel plate that covered with a recessed PTFE sheet to transfer whether horizontal or vertical forces safely.

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.

 

Packaging & Shipping

Packaging for Bridge Rubber Bearings:

Plastic Film Wrapping: Each rubber bearing is individually wrapped in plastic film to protect it from moisture, dust, and physical damage during transit.
Palletization: The wrapped bearings are then placed on pallets for stability and ease of handling. Palletization also facilitates the use of forklifts and other materials handling equipment.
Strapping or Banding: To secure the bearings on the pallet, strapping or banding may be used to prevent shifting during transportation.
Transportation of Bridge Rubber Bearings:

Transportation of Bridge Rubber Bearings:

Sea Freight Containers: For international shipments, sea freight is a common method due to the ability to handle large quantities and the cost-effectiveness for heavy and bulky goods like bridge rubber bearings.
Container Selection: Depending on the size and quantity of the bearings, appropriate container sizes (such as 20' or 40' standard containers) are chosen to optimize space and ensure safe transportation.
Container Loading: The palletized bearings are carefully loaded into the containers, often with additional securing measures like wooden blocks or braces to prevent movement within the container during sea transport.
Customization: Transport methods can be adjusted to meet customer requirements, including alternative modes of transport such as air freight or land transportation if sea freight is not suitable.

 

Company Profile

Hengshui Jingtong Rubber Co., Ltd.

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 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.

 

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