Description
Technical Parameters
A Railway Anchor Bolt is a high-strength fastener designed to secure rails, sleepers (ties), or track components to the foundation (e.g., concrete slabs, ballast, or bridges). Its primary functions include:
- Anti-Uplift Resistance – Prevents vertical displacement caused by train loads or thermal expansion.
- Shear Resistance – Withstands lateral forces from train movement and track curvature.
- Vibration Damping – Reduces dynamic oscillations to maintain track alignment.
Types of Railway Anchor Bolts
Comparison of Anchor Types
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Comparison: Anchor Bolt vs. Standard Bolt
| Parameter | Railway Anchor Bolt | Standard Bolt |
|---|---|---|
| Strength | Grade 8.8/10.9 (high yield) | Grade 4.6/5.8 (general use) |
| Coating | HDG/ZnAl15 (anti-corrosion) | Plain/zinc electroplated |
| Preload Accuracy | ±10% (EN 14399 HR) | ±30% (non-critical) |
| Cost | Higher (specialized design) | Lower |
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