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Help CenterPlate Type Rubber Elastomeric Bridge Bearing for Concrete Bridge
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Hengshui Ruibin New Materials LLC is a professional manufacturer specializing in the production of Plate Type Rubber Elastomeric Bridge Bearings for concrete bridges. Since our establishment in 2019, we have built a 1,000–3,000 square meter factory and employ 101–200 skilled workers, ensuring rigorous quality control from raw material to finished product. Our bearings are designed to transfer loads safely while accommodating thermal expansion, contraction, and rotations in concrete bridge structures. With an annual export value of US$2.5–5 million, we serve markets across North America, South America, Europe, Southeast Asia, Africa, and Oceania. All our products are manufactured under ISO 9001 and ISO 9000 certified processes, guaranteeing consistent performance and durability.
Our Plate Type Rubber Elastomeric Bridge Bearing consists of alternating layers of high-quality rubber and steel plates, vulcanized together to form a single, robust unit. This design provides excellent vertical load capacity while allowing horizontal shear deformation and rotation. The bearings are ideal for precast or cast-in-place concrete bridges, offering long-term reliability with minimal maintenance. Below are the key features and technical specifications:
- High Load Capacity – Capable of supporting vertical loads from 500 kN to 20,000 kN, depending on size and configuration.
- Excellent Durability – Natural rubber or neoprene compounds resist ozone, aging, and extreme temperatures, ensuring a service life exceeding 25 years.
- Flexible Movement – Accommodates thermal expansion, contraction, and seismic movements with shear strains up to 50%.
- Easy Installation – Pre-formed units simplify placement; no special equipment required for assembly.
- Corrosion Resistance – Steel plates are fully encapsulated in rubber, eliminating rust and corrosion risks.
- Customizable Dimensions – Available in thicknesses from 20 mm to 200 mm, with custom widths and lengths per project requirements.
| Parameter | Standard Range | Customizable |
|---|---|---|
| Rubber Hardness (Shore A) | 60 ± 5 | 50–70 (optional) |
| Steel Plate Thickness | 2 mm – 5 mm | Up to 10 mm |
| Max Load Capacity | 500 kN – 20,000 kN | Yes (per design) |
| Operating Temperature | -40°C to +70°C | -50°C to +80°C |
| Shear Modulus | 0.8 – 1.2 MPa | Custom |
These bearings provide significant benefits to concrete bridge projects: they reduce stress concentrations, simplify design calculations, and lower long-term maintenance costs. The elastomeric nature allows for uniform load distribution, preventing damage to the bridge deck. Additionally, the vulcanized bond between rubber and steel eliminates the need for separate anchor bolts, saving installation time.
At Hengshui Ruibin New Materials LLC, we have delivered over 10,000 bearing units to more than 30 countries since 2019. Our experienced engineering team can assist with custom designs based on your bridge specifications. We are committed to supplying reliable products that meet international standards, such as ISO 9001 and ISO 9000. Our factory is located in Hengshui, Hebei – a major production hub for bridge components in China. We ship from the ports of Tianjin and Qingdao, ensuring timely delivery worldwide. Choose our plate type rubber bearings for your next concrete bridge project and experience quality you can trust. Contact us today for a quote or technical consultation.
Frequently Asked Questions (FAQ)
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Q: What is the typical lifespan of these bearings?
A: Under normal service conditions, our plate type rubber bearings can last 25–30 years. The rubber compound is formulated to resist ozone, UV, and temperature extremes, ensuring long-term performance. -
Q: Can the bearings be customized for specific bridge dimensions?
A: Yes, we offer full customization in terms of length, width, thickness, and rubber hardness. Please provide your project drawings or load requirements for a tailored solution. -
Q: How are the bearings installed?
A: The bearings are placed directly between the bridge deck and the substructure. They require no bonding agents; simply position them on the prepared concrete surface. Ensure the surface is clean and level. -
Q: Do I need to anchor the bearings to the concrete?
A: No, our elastomeric bearings rely on friction and compression transfer. The steel plates inside provide stability, but no mechanical anchors are necessary unless specified by the design. -
Q: What is the maximum shear movement allowed?
A: The bearings can accommodate shear strains up to 50% of the total rubber thickness. For example, a 100 mm thick bearing can handle up to 50 mm horizontal displacement. -
Q: Are these bearings suitable for seismic zones?
A: Yes, their flexibility allows them to absorb seismic energy. We recommend consulting with our engineers to select the appropriate stiffness and size for your specific seismic requirements. -
Q: How do I maintain the bearings after installation?
A: These bearings are maintenance-free for most applications. Periodic inspections (every 3–5 years) to check for any misalignment or debris accumulation are recommended. -
Q: What certifications do your products hold?
A: Our manufacturing process is ISO 9001 and ISO 9000 certified. We also provide material test reports and load test certificates upon request.
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