Expressway guardrail, also known as "wave guardrail", is the main form of semi-rigid guardrail. It is a continuous structure that is spliced with corrugated steel guardrails and supported by main columns. It uses the deformation of soil foundation, column, and beam to absorb the collision energy, and force the out-of-control vehicle to change direction and return to the normal driving direction to prevent the vehicle from rushing out of the road, to protect the vehicle and passengers and reduce the loss caused by the accident. The corrugated guardrail of expressway has both soft and hard steel, has a strong ability to absorb collision energy, has a good sight-guiding function, can coordinate with the road alignment, has a beautiful appearance, can be used on small radius curves, and is easy to replace at the damaged part. Combination wave beam guardrails can be used on narrow medians. For the section where the vehicle crosses the road (bridge), which may cause serious consequences, you can choose to strengthen the wave beam guardrail.

The product has the advantages of good impact resistance, low cost, long life, higher safety, and environmental protection. Uses: highway collision avoidance facilities, isolation, and other facilities.

1. Corrugated beam guardrail is the main form of semi-rigid guardrail. It is a continuous structure with corrugated steel guardrails spliced to each other and supported by columns.
2. It uses the deformation of soil foundation, column, and beam to absorb the collision energy, and force the out-of-control vehicle to change direction and return to the normal driving direction to prevent the vehicle from rushing out of the road, to protect the vehicle and passengers and reduce the loss caused.
3. The corrugated guardrail of expressway has both soft and hard steel, has a strong ability to absorb collision energy, has a good line of sight induction function, can coordinate with the road alignment, beautiful appearance, can be used on small radius curves, and the damaged part is easy to replace.

Product Specifications The common specifications of the second wave guardrail are 4320mm×310mm×85mm×3/4mm, and the column is 114/140mm×4.5mm.
The common specifications of the three-wave guardrail are 4320mm×506mm×85mm×3/4mm, and the column is 130mm×130mm×6mm.

Product classification: Commonly used roadside wave beam guardrails can be divided into B, A, SB, SA, SS grades according to the anti-collision grade. The expressway anti-collision guardrail is a typical cold-formed steel product.

Corrugated beam guardrails are classified according to the setting location and the anti-collision level. According to the setting location, it can be divided into roadside guardrail and central divider guardrail. According to the anti-collision level, it can be divided into A-level and B-level. A-level guardrails are reinforced and are suitable for use in particularly dangerous road sections on the roadside, and B-level guardrails are used for special roads.

General industry standard JT/T281-2007 "Highway Corrugated Beam Steel Guardrail" Hot-dip galvanized corrugated beam steel guardrail and column: 

Hot-dip galvanized anti-corrosion layer quality of galvanized adhesion g/㎡

Average galvanized adhesion plate ≥ 600

Column anti-corrosion Block ≥ 350 

Minimum galvanized adhesion plate ≥ 425 

Column blocking block ≥ 275 

Coating thickness μm 

Average coating thickness board ≥ 85 

Column blocking block ≥ 50

Minimum coating thickness board ≥ 61 

Column blocking block ≥ 39 

Hot dip galvanized + Pure polyester electrostatic sprayed double-coated corrugated beam steel guardrails and columns. 

Average coating adhesion amount g/㎡

Plate ≥270 

Average coating thickness plate ≥39

Average thickness of plastic coating plate ≥76