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Thrie-Beam Guardrail

AASHTO M180 Thrie-Beam Highway Guardrail

Part of the Thrie-Beam Guardrail range · Highway Guardrail.

Model: Type I / Type II

This AASHTO M180 thrie beam guardrail is the standardised edition of the three-wave section, supplied to the American specification in TYPE I 4130 mm and TYPE II 4320 mm effective lengths. Products Description hrie beam guardrail Thrie beam guardrail features its shape of three waves, which has an added corrugation on the basic of traditional W-beam. Compared to two-wave shape products, this one has a stronger construction and higher impact…

  • Standard AASHTO M180 / EN 1317
  • Material Q235B / Q345B steel
  • Surface Hot-dip galvanized, ≥ 550 g/m²
  • MOQ 1 × 20GP container
  • Lead time 15–25 days
  • Mill test certificate with every shipment
  • Shop drawings and setting-out plan included
  • Custom lengths, hole patterns and coating weights

Technical specification

American AASHTO-M180 Technical Standard Thrie-beam highway guardrail
TYPEOverall Length (mm)Effective Length (mm)Nominal Uncoated Thickness (mm)
TYPE I413038102.67-4.0
TYPE II432040002.67-4.0
MECHANICAL PROPERTIES
  • Material grade: S355JR
  • Yield point, minimum, 345 MPa (50 000 psi)
  • Tensile strength, minimum 483 MPa (70 000 psi)
  • Elongation, in 50 mm (2 in.), minimum, 12 percent
NOTES
  • Thickness of zinc coating: 550 g/m² or 1100 g/m²
  • The beams may be galvanized before or after fabrication
  • We can customize the length and thickness according to customer requirements

Dimensions shown are the standard range. Non-standard lengths, hole patterns and coating weights are produced to order — send your drawing for a confirmation drawing.

Description

Products Description

hrie beam guardrail

Thrie beam guardrail features its shape of three waves, which has an added corrugation on the basic of traditional W-beam. Compared to two-wave shape products, this one has a stronger construction and higher impact endurance. It has been successfully impact-tested by a heavy truck and has showed its remarkable resistance against the crash force.

It is a perfect combination of high quality material (including Q235, Q345, etc.) and excellent anti-rust zinc or PVC coating. All of these make it outstanding at long-term corrosion and rust resistance. Meanwhile, it costs effectively and is widely used as a visual and physical barrier for protection against run-off road collision. Additionally, it is often used as a specific signs for a transition to high speed roadways, bridges, etc.

Manufacturing Technique

Thrie Beam Guardrail Advantages

* No offset block required
* Higher durability and strength than W-beam guardrails
* Absorb maximum energy of the impact force
* Redirect the mobile equipment as fast as it can
* Visual remand of the transition to highways or bridges
* Preventing the pedestrians from walking across highways ignoring the running cars
* Protect the vehicles against skidding off roads, especially mountain roads and bridges.

Key features

  • Three-wave thrie-beam section for higher containment than a W-beam
  • Hot-dip galvanized, minimum 550 g/m² zinc coating to AASHTO M180
  • Produced in AASHTO M180, EN 1317 and national transit standards
  • Longer effective span between posts reduces post count and install time
  • Matched posts, spacers and terminals supplied in the same shipment

Where it is used

  • Bridges and viaducts
  • Tunnel portals
  • High-traffic corridors
  • High-speed motorways
  • Rail and metro corridors
  • Gantries and sign supports

Complete the system

A barrier is supplied as a set. These are the components that go with this item on a typical installation.

Not sure which specification fits?

Tell us the road class, design speed and the standard your client is working to. Our engineer will come back with the section, the coating weight and the post spacing that meet it — and the price for the quantity you need.

Ask an engineer
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Need a quotation for your next highway project?

Send the drawing, the bill of quantities or just the standard you are building to. We return a take-off, a shop drawing and a factory price within one working day.

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