Thrie-Beam Guardrails are a type of guardrail system with three alignment, w-shaped steel beams supported by posts and blocked at the two sides to form a continuous structure. It is mainly used for median and side barrier on highways, pedestrian, and roadside safety barriers. It is designed to absorb more energy from impact and provide better protection than traditional W-beam guardrail. Additionally, Thrie-Beam Guardrails have distinct advantages over other guardrail systems, such as weight savings due to reduced material compared to W-beam guardrail. It is also easier to install since the rails come pre-assembled in sections, so it requires less labor time. Furthermore, its reduced profile allows a larger range of view for drivers approaching curves in highways, as well as reducing soil erosion.
Thrie Beam Guardrail is also known as Tri Beam Guardrail or Three Waves Guardrail. Thrie beam guard rails have an additional beam or wave compared with W beam railings, suitable for safety barrier systems demanding superior strength. We supply Thrie Beam Guardrails with three wave beam plates, thrie beam terminal ends, posts, spacers / blockouts, anti dazzle board and bolts for the complete highway safety barrier project.
Thrie Beam Guardrail Specifications
Standard: According to clients' request or the following standard: AASHTO M180-79(USA)
Base Steel for Thrie Beam Guardrails:
Q235 according to GB 700-88
Equivalent to S235JR according to DIN EN10025
ASTM A283M
Q345 according to GB 700-88, equivalent to S235JR according to DIN EN10025 and Gr.D according to ASTM A283M.
Material:
Thickness of Steel Plate: 3MM, 4MM, customized.
Finish: Hot dip galvanized or Powder coated.
The thickness of galvanization: Standard 70um or customized.
Three Beam Guardrail Barrier
| Beam Shape | Code | Length*width*wave | Material Property | Anti-collision grade |
| TBG01 | 4320*506*85*4 | Intensity of tension Mpa≥375 | A | |
| arc | TBG02 | 3320*506*85*4 | Yield stress Mpa≥235 | A |
| TBG03 | 2320*506*85*4 | Tensile stretch ≥26 | A |
Three Beam Highway Guard Rails, Galvanized Finish
Hot Dip Galvanizing 3 Wave Beams Strengthened Guardrails
Thrie Beam Guardrails and Stiffeners
Thrie beam guard rails and rail stiffening pieces made from 2.7 BMT, hot dipped galvanised to AS4680 after fabrication.
Thrie beam guard rails and rail stiffening pieces made from 3.5 BMT, hot dipped galvanised to AS4680 after fabrication.
Rail B003 and rail stiffening piece B004 are from 2.7 BMT, Rail B028 from 3.5 BMT
Technical Details
Three Beam Highway Guard Rails, Powder Coated Finish
Powder Coating Galvanized Thrie Beam Guardrail Plates
10 Gauge Three / Tri-Beam Highway Guardrails, Finished with PVC Coating
Thrie Beam Guardrail End
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