Bridge Box Beam Guardrail
Thrie-Beam Highway Guardrail
Product Introduction
Thrie-beam highway guardrail is a heavy triple corrugated metal crash barrier. It is fabricated from hot dip galvanized Q235 or Q345 steel to achieve outstanding anti corrosion performance and meets AASHTO specifications. It is widely installed along expressways, interchanges, sharp curves and high risk road zones. Multiple profile options are available including standard straight segments, curved corner sections and flared end sections, with a service life of 15 to 20 years.
Lead Time: 3-4 weeks (depends on availability)
Features & Specifications
- Thrie-beam highway guardrail delivers reliable road safety protection for expressways and high-risk road sections
- High strength Q235 or Q345 cold rolled steel strip serves as raw material
- Surface treatment options include hot dip galvanized and galvanized plus powder coating
- The product complies with GB, AASHTO and EN1317 standards
- Custom dimensions and accessories are available to meet different project demands
Check the material configuration for one kilometer project below.
| Parameter Category | Specification |
|---|---|
| Thrie-beam Guardrail Core Size | 4130mm × 506mm × 85mm |
| Available Beam Thickness | 2.67mm / 3.0mm / 3.43mm / 4.0mm |
| Base Material | Q235 / Q355 cold rolled steel strip |
| Surface Treatment | Hot dip galvanized; galvanized plus powder coating |
| Post Specification | Φ114mm × 4.5mm, Φ140mm × 4.5mm, custom length available |
| Crashworthiness Level | Class B, Class A |
| Standard Post Spacing | 4m for standard sections, 2m for reinforced sections |
| Supporting Accessories | Spacer block / bracket, post cap, M16 connecting bolts |
| Execution Standard | Domestic GB/T 31439.1, AASHTO M180, EN1317 overseas standards available |
| Theoretical Weight | 2.67mm beam: approx 42kg per piece 3.0mm beam: approx 48kg per piece 3.43mm beam: approx 55kg per piece 4.0mm beam: approx 62kg per piece |
How are guardrail materials configured per kilometer?
Layout Reference for One Kilometer Highway Guardrail Installation
For standard W-beam highway guardrail sections, steel posts are arranged with four meters center-to-center spacing for regular road segments.
One kilometer of standard guardrail requires the following components.
250 pieces of W-beam guardrail plates, 251 steel posts, 250 spacer blocks or brackets, 250 post caps, 250 sets of M16×170 bolts, 2000 sets of M16×40 bolts, 250 sets of M16×50 bolts, 250 beam gaskets and two R160 end terminals.
For high risk reinforced sections, we apply a two-meter post spacing layout to deliver enhanced anti-crash performance to match local highway design requirements.
Frequently Asked Questions
What is the service life of W‑beam highway guardrail?
The hot dip galvanized W‑beam guardrail can serve 15 to 20 years under regular outdoor conditions. Service life will decrease in coastal regions with heavy salt spray.
What surface options do you provide for highway guardrail?
We supply hot dip galvanized guardrail as standard treatment. Galvanized plus powder coating is available if customized colors are required for landscape projects.
Can we obtain customized guardrail pieces for special road layouts?
Custom straight segments curved sections and flared end terminals can be produced according to your project drawings.
What is your minimum order requirement for highway guardrail?
Minimum order quantity varies based on your overall project scale. Please submit a request quote to get tailored suggestions.
