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.
Advantages:
1. Higher durability and strength than W-beam guardrails
2. Absorb maximum energy of the impact force
3. Redirect the mobile equipment as fast as it can
4. Visual remand of the transition to highways or bridges
5. Preventing the pedestrians from walking across highways ignoring the running cars
6. Protect the vehicles against skidding off roads, especially mountain roads and bridges.
Specification
| Normal Size(mm) | 3200/3300/4000/4130/4300/4320 × 502/505×80/82/83/85 × 2.55/2.75/3/4 & other sizes |
| Profile | w-beam & thrie-beam |
| Base Material | Q235B, Q345, Q345B, S355JR, HA350 and HA300 or equivalent |
| Thickness | 2.55mm, 2.75mm, 3mm, 4mm, 6mm or according to consumers' request |
| Surface Treatment | Hot dip galvanized or powder coated |
| Thickness of Galvanizing | 550g/m2 (80µ) or 610g/m2 (85µ) or 1100 g/m2 (160µ) or 1200 g/m2 (170µ) or as per your request |
| Certificate | ISO9001, ISO14000, SGS, CE, BV |
| Feature | Great corrosion resistant, high intensity, long and durable, with good impact resistance, low cost, long life, higher security, environmental protection, etc. |
| Other | Other special specification as per client's requirement or drawings. |
What kind of thrie beam guardrails can we supply?
According to the surface treatment, we can classify our thrie beam guardrails into two types:
Hot dip galvanized and PVC coating as shown in the following pictures.
W-Beam Popular Applications:
1. Car parking lot guardrail;
2. Industrial barriers;
3. Roadway guard crash barriers;
4. Median highway crash barrier;
5. Loading bays;
6. Warehouses;
7. Distribution depots;
8. Service roads;
9. Pedestrian areas;
10. Bridge guardrail.
We manufacture highway guardrails according to those Standards as below:
A. JT/T 281-1995(Corrugated Sheet Steel Beams For Expressway Guardrail - China)
B. AASHTO-M180 (Corrugated Sheet Steel Beams For Highway Guardrail - USA)
C. AS/NZS 3845:1999(Road Safety Barrier Systems - Australia/New Zealand)
D. BS EN-1317(Road Restraint Systems - Europe)
E. RAL RG620 (Germany)
F. Or tailor-make according to client's requirements
Our Production Process: 
W-beam and Thrie Beam Guardrail Installation Steps:
Step 1. Site Preparation
Step 2. Driving the Posts
Step 3. Joining the W-Beam Guardrail Panels
Step 4. Connecting the W-Beam Guardrail Panels to the Posts
Step 5. Repeat Steps 2, 3 and 4
Step 6. Delineation (if required)
Contact us today for an estimate.
You are the most welcome to visit our production premises.
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