Circular Plate Rubber Bearing Direct Sales GBZY500*110 Circular Bridge Plate Rubber Bearing Manufacturer, Contact Me
Contact Info
- Add:河北衡水北方工业基地园区东路269号, Zip: 053000
- Contact: 高晴
- Tel:15297607517
- Email:1518498187@qq.com
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Direct Sales of Circular Plate Rubber Bearings GBZY500*110 Circular Bridge Plate Rubber Bearings Manufacturer Contact Me
Plate rubber bearings are commonly used in structures such as bridges and buildings, primarily for transferring loads from the upper structure while accommodating displacements of the beam (e.g., thermal deformation, shrinkage, creep, etc.), and providing certain damping effects.
1. Product Classification and Features
(1) Classification by Structural Form
Type | Features | Applicable Scenarios |
|---|---|---|
Ordinary Plate Rubber Bearings (GJZ/GJZF4) | Composed of multiple layers of rubber and steel plates vulcanized and bonded, with high vertical stiffness and limited horizontal displacement capacity | Small to medium-span bridges (≤30m) |
PTFE Sliding Plate Rubber Bearings (GJZF4) | Surface coated with polytetrafluoroethylene (PTFE) plate, low friction coefficient (μ≤0.03), suitable for large displacements | Continuous beam bridges, large-span structures |
Spherical Crown Plate Rubber Bearings | Top surface is spherical, capable of accommodating minor rotations (≤0.02rad) | Curved bridges, slope bridges |
Lead Rubber Bearings (LRB) | Equipped with a lead core Direct Sales of Circular Plate Rubber Bearings GBZY500*110 Circular Bridge Plate Rubber Bearings Manufacturer Contact Me, combining seismic isolation functionality | Bridges in high seismic intensity areas |
(2) Classification by National Standards
- GJZ Series Direct Sales of Circular Plate Rubber Bearings GBZY500*110 Circular Bridge Plate Rubber Bearings Manufacturer Contact Me (Rectangular Ordinary Plate Rubber Bearings)
- GYZ Series (Circular Ordinary Plate Rubber Bearings)
- GJZF4 Series (PTFE Sliding Plate Rubber Bearings)
2. Technical Parameters
Parameter | Typical Value | Description |
|---|---|---|
Rubber Hardness (Shore A) | 60±5 | Affects the elastic modulus of the bearing |
Compressive Elastic Modulus (E) | 1.0~6.0GPa | Adjusted according to bearing specifications |
Shear Elastic Modulus (G) | 1.0~1.5MPa | Determines horizontal deformation capacity |
Ultimate Compressive Strength | ≥70MPa | Ensures load-bearing safety |
Allowable Rotation | 0.005~0.02rad | Accommodates beam rotation |
Friction Coefficient (PTFE Plate) | ≤0.03 | Reduces sliding resistance |
3. Construction Process and Key Points
(1) Pre-construction Preparation
- Bearing Selection ：Choose the model based on design load, displacement amount, Direct Sales of Circular Plate Rubber Bearings GBZY500*110 Circular Bridge Plate Rubber Bearings Manufacturer Contact Me rotation requirements.
- Inspect Bearings ：Ensure no cracks, delamination, exposed steel plates, or other defects.
- Survey and Layout ：Ensure accurate bearing position and elevation.
(2) Installation Steps
- Bearing Pad Treatment ：
- Concrete strength ≥ C40, surface flatness (deviation ≤ 2mm).
- For PTFE bearings, pre-embed stainless steel plates (polished) on the bearing pad.
- Bearing Placement ：
- Place ordinary bearings directly; Direct Sales of Circular Plate Rubber Bearings GBZY500*110 Circular Bridge Plate Rubber Bearings Manufacturer Contact Me apply silicone grease for PTFE bearings.
- Ensure the center of the bearing aligns with the beam bottom and pier center.
- Beam Installation ：
- Avoid impact loads to prevent eccentric compression of bearings.
- For PTFE bearings, install stainless steel sliding plates on the beam bottom.
(3) Acceptance Standards
- Position Deviation ：≤ 5mm (longitudinal and transverse).
- Flatness ：≤ 2mm/m.
- Contact Integrity ：No gaps between the bearing and beam bottom or bearing pad.
4. Common Issues and Solutions
Issue | Cause | Solution |
|---|---|---|
Bearing Void | Uneven bearing pad or construction error | Level with epoxy mortar |
Rubber Aging and Cracking | Long-term exposure to UV and ozone | Replace bearing, add protective cover |
PTFE Plate Wear | Excessive sliding friction | Replenish silicone grease, check flatness of stainless steel plate |
Eccentric Compression of Bearing | Beam installation deviation | Adjust beam position, add limit devices |
| Industry Category | Rubber-Plastics |
|---|---|
| Product Category | |
| Brand: | 衡水长江预应力 |
| Spec: | 500*110 |
| Stock: | |
| Origin: | China / Hebei / Hengshuishi |
