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.
American AASHTO-M180 Technical Standard Thrie-beam highway guardrail
Norminal Uncoated Thickness
◆Material grade: S355JR
◆Yield Point, minimum, 345Mpa (50000psi);
◆Tensile Strength, minimum 483Mpa (70000psi); and ◆Elongation, in 50mm (2 in.),minimum, 12 percent.
●Thickness of Zinc coating: 550g/㎡ or1100g/㎡; ●The beams may galvantzed before or after fabrication; ●We can customize the length and thickness according to customer requirements.
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.