Thrie-Beam Guardrail
Thrie-beam guardrails are composed of essentially two pieces of W-beam guardrail that are formed into one single piece. The galvanized rails can withstand larger impacts than the singular W-beam design and are therefore applied to areas that see higher concentrations of heavy vehicles and along bridges. Thrie-beam guardrails are excellent at reducing deflections and offer increased resistance to overturning vehicles.
Features & Benefits
1. Improved impact resistance
2. Low maintenance
3. Economical - both materials and installation
4. Versatile - can be supplied in various configurations and finishes
5. Continuously galvanized steel assures a consistent finish
Many of our products can be custom designed and built to suit your project needs.
Thrie-Beam Steel Guardrail Dimensions:| Material | Surface Treatment | Length(mm) | Width (mm) | Height (mm) | Thickness (mm) | Standard |
| Q235, Q345 | Hot dip galvanized; Plastic Spray Zinc Coating: 800-1220 g/m2 | 4320 | 506 | 85 | 3.0 | JT/T281/2007(China) AASHTO-M180(USA) RAL-RG620(Germany) |
| 4300 | 3.75 | |||||
| 4130 | 4.0 | |||||
| 4128 | 4. 5 | |||||
| Various Post and Spacer Support Types: | ||||||
| U Post | 150*75*5*1800 | U Spacer | 150*75*5*360 | |||
| C Post | 150*75*5*1800 | C Spacer | 150*75*5*360 | |||
| H Post | 150*100*5*1800 | H Spacer | 150*100*5*360 | |||
| Round Post | Φ114/ Φ 140 *3*2150 | Round Spacer | 196*178*200*3 | |||
| Square Post | 130*130*6*2150 | Square Spacer | 196*178*360*3 | |||
| Different dimensions are available. Special drawing is preferred! | ||||||
| QC Test Report Feedback : | ||||||
| Zinc Thickness | ≥ 85um | |||||
| Finished Appearance | Zinc is well-distributed, with smooth surface and unique color, no sagging or lumping | |||||
| Bent Test | No zinc drop ping, nor crack | |||||
| Collision Test | Zinc coating no drop , no lump, nor crack. | |||||
| Salt water spray Test | No corrosion after test. | |||||
| Zinc Unique Test | Color does not change into red after 5 times dipping into copper sulfate. | |||||
| Shandong Weida Transport Facilities Co., Ltd. | ||||||
QC Standard:
1. JT/T 281-1995(Corrugated Sheet Steel Beams For Expressway Guardrail -China)
2. AASHTO-M180 (Corrugated Sheet Steel Beams For Highway Guardrail -USA)
3. RAL RG620 (Germany)
- Practical application
- Practical application
Detailed Pictures:
Corrugated guardrails such as these are installed upon fixed supports and can be removed in the aftermath of a collision for replacement or o allow vehicle access that is not normally allowed. The steel allows vehicles to collide with rail safely with its pliability but it is not easily broken.
The regular sizes of the thrie-beam guardrail are:4320mmx506mmx85mmx3/4mm. The colors are: Galvanized silver, powder coating green, white, blue and so on.
The grades of collision avoidance grades of corrugated highway guardrails can be divided in to A-class and S-class. S-class guardrails are enhanced for the roadside of particularly dangerous road sections. A grade guardrails are for accommodation highways. The grades of collision avoidance grades of common roadside guardrails cam be divided into 5 classes: B, A, SB, SA and SS.
After ten years of development, Weida now possesses leading processing techniques, advanced processing technologies, specialized talent, and strict quality management systems to ensure top of the line quality.
Advantages of New Guardrails:
1. The guardrail doesn't need painting or maintenance.
2. The guardrails are easy and fast to manufacture, they are installed with the patented socket and spigot joint or special connection fittings, thus improving installation efficiency.
3. Many designs and styles to choose from.
4. The guardrail cavity is lined with galvanized steel or aluminum alloy to enhance it with sufficient strength and impact resistance.
