Aohong is a professional manufacturer and exporter of Elastomeric Bridge Bearing Pads, offering high-quality bridge bearings designed to ensure structural safety, vibration absorption, and long-lasting performance. Made from premium natural rubber or neoprene bonded with steel laminates, these bearings comply with IRC 83 Part II-2015, MORT&H specifications, and UIC 772-2R international standards. With excellent load distribution, thermal movement accommodation, and maintenance-free operation, they are widely used in highway bridges, railway bridges, viaducts, and industrial structures.
Material of Bridge Bearing Pads
Elastomeric Bridge Bearing Pads are manufactured using high-grade polychloroprene elastomers such as Neoprene W & WRT, Bayprene 110/210, Skyprene B5/B30, and Denka S40/M40, with a minimum neoprene content of 60% and ash content under 5%. The steel laminates comply with IS:2062 or IS:1079, ensuring strength and stability even under heavy dynamic loads.
Types of Bridge Bearings
Laminated bearing fully encapsulated in elastomer with a single steel reinforcing plate.
Laminated bearing fully encapsulated in elastomer with two or more steel reinforcing plates.
Laminated bearing with outer steel plates, either profiled or fixed.
Type B bearing with a PTFE sheet bonded to the elastomer surface.
Type C bearing with one outer steel plate bonded to the elastomer and a recessed PTFE sheet.
Standard plain pads or strip-type elastomeric bearings.
Features of Elastomeric Bridge Bearings
- High Load Capacity: Supports up to 10 MPa design load
- Durability: Resistant to corrosion, ozone, and temperature fluctuations (-20°C to +80°C)
- Shock and Vibration Absorption: Protects bridge structures and ensures smooth movement
- Cost-Effective & Maintenance-Free: Long service life with minimal maintenance
- Energy Efficiency: Reduces structural stress during thermal expansion and contraction
- Fire & Weather Resistant: Designed for outdoor and harsh environmental use
Specifications
Mechanical Properties
- Shear Modulus: 9 ± 0.18 MPa
- Tensile Strength: 14–17 MPa
- Elongation at Break: 250–450%
- Adhesion Strength: Minimum 7 kN/m
- Hardness: 50 ± 5 / 60 ± 5 / 70 ± 5 IRHD
- Ozone Resistance: No surface cracking
- Compression Set (24h, 100°C): ≤ 35%
Steel & Elastomer Layer Thickness
- 3 mm steel laminates combined with 8–10 mm elastomer layers
- 4 mm steel laminates combined with 12 mm elastomer layers
- Top and bottom cover layer ≥ 5 mm, side cover layer ≥ 4 mm
Common Sizes
- Standard Dimensions:
- Length: Up to 1500 mm
- Width: Up to 1000 mm
- Thickness: 22 mm to 144 mm
- Popular Sizes:
- 200 × 300 × 50 mm
- 300 × 450 × 50 mm
- 500 × 320 × 80 mm
- 550 × 550 × 96 mm
- 630 × 320 × 90 mm
- Shapes: Rectangular, square, or round (custom sizes available upon request)
Applications
- Highway and railway bridges to absorb shocks and thermal expansion
- Viaducts and flyovers for structural stability under dynamic loads
- Industrial and seismic structures to reduce vibration and distribute loads evenly
- Building supports requiring long-term maintenance-free performance
