Aohong manufactures high-performance Rectangular Laminated Elastomeric Bearing Pads for bridge and structural applications. These bearing pads are composed of alternating layers of natural rubber (NR) or chloroprene rubber (CR) and internal steel plates, all vulcanized together to form a durable, load-bearing elastomeric system. Engineered to absorb vibrations, accommodate structural movements, and provide stable vertical load transfer, these bearing pads ensure long-lasting bridge and building performance.
Rubber Material Options and Temperature Range
Rectangular Laminated Elastomeric Bearing Pads are available in two standard rubber materials:
- Chloroprene Rubber (CR): Suitable for working temperatures from -25°C to +60°C.
- Natural Rubber (NR): Ideal for colder climates, with a temperature range from -40°C to +60°C.
Reinforced Structural Design with Steel Layers
Each pad consists of multiple layers of rubber bonded with steel plates (typically 2 to 5 layers), ensuring:
- High vertical load capacity
- Enhanced shear resistance
- Reliable rotation accommodation at beam ends
Optional variants include non-reinforced elastomeric pads and PTFE-coated bearing pads for applications requiring horizontal sliding.
Specifications and Dimensions
- Length Range: 200 mm to 800 mm
- Width Range: 100 mm to 700 mm
- Thickness Range: 28 mm to 120 mm
- Steel Plate Thickness: 2 mm to 5 mm
- Steel Plate Count: 2 to 5
Sample Configurations:
- 200 × 100 × 28 mm
- 250 × 250 × 52 mm
- 400 × 350 × 56 mm
- 600 × 550 × 70 mm
- 800 × 700 × 120 mm
Custom sizes are available to meet specific structural requirements.
PTFE Rectangular Laminated Bearing Pads
For structures requiring low-friction movement, a 2–3 mm PTFE sliding plate can be bonded to the pad surface. This allows:
- Smooth horizontal displacement
- Reduced friction and wear
- Long-term functionality under thermal expansion or seismic activity
Installation Guidelines
- When the vertical slope is less than 1%, the pad can be installed directly on the pier.
- For slopes greater than 1%, install with a leveling concrete block or embedded steel plate for stability.
- Ensure the shorter side is parallel to the bridge span for correct load distribution.
Features and Performance
- High vertical stiffness for supporting heavy structural loads
- Large shear deformation capacity for horizontal displacement
- Excellent flexibility and durability in dynamic load conditions
- Resistance to aging, weathering, and ozone
- Compliant with AASHTO M251 and EN 1337 standards
Applications
- Curved or skewed bridges (suitable for slopes >10°)
- Precast and post-tensioned concrete structures
- Elevated highways and railway systems
- Seismic and thermal isolation zones in buildings and infrastructure
Why Choose Aohong’s Rectangular Laminated Elastomeric Bearing Pads?
Aohong provides consistent product quality, custom design capabilities, and global-standard compliance. With robust production and strict quality control, we support bridge engineers and civil contractors with reliable elastomeric solutions for diverse project demands.
