Rotating Guardrail Components and Roles

A rotating Guardrail is also called a Roller Barrier, when the vehicle and the guardrail collide, can prevent the vehicle from rushing out or overturning the road or under the bridge, at the same time, through its deformation to absorb the impact energy or through the roller guidance to promote the vehicle for energy transformation, reduce the damage to the vehicle and the occupants to reduce the formation of serious accidents possible.

Benefiting from the special protection mechanism, the guiding function and buffering function of the rotating guardrail can be improved in a breakthrough way. Therefore, in addition to replacing the commonly used road guardrail of the same level, the rotating guardrail can give full play to its advantageous features in the small radius curve section and the tunnel entrance and exit sections. What are the specific components of the roller barrier, and how do the components play a role?

Roller Barrier is mainly composed of Rollers, Posts, U beams, U Brackets, Spacers, Gyratory Circles, Reflective Strips, Post Caps, Buckles, Bolt, and other parts. 

The following will briefly explain the role of the main components:

1, Post: post into the roadbed, for the first stress components. According to a certain spacing (such as 1 meter or 0.7 meters) for rows. The posts are generally made of steel and hot-dip galvanized and other anti-rust treatments to improve their durability and service life.

2、Rotating barrels (known as rollers, rotating barrels): rotating barrels are the key part of the rotating guardrail, they are installed in the posts and can rotate around the posts. The main materials of rotating barrels are usually EVA (ethylene vinyl acetate copolymer) and polyurethane, etc. These materials have high elasticity and impact resistance, and can effectively absorb and disperse the collision energy. Rotary drums are available in a variety of sizes and colors, which can be selected according to the design requirements.

3、U-shaped Beam (or called U Beam): A U-shaped beam is used to connect the posts and play a role in fixing the roller. It is generally made of steel and treated with anti-rust treatment.

4、Spacer: The spacer is used to connect the post, roller, and U beam to form a complete rotating guardrail system. The design and manufacturing quality of the spacers is crucial to ensure the stability and safety of the rotating guardrail.

5、Gyratory Circle：Installed between the roller and the beam, it balances and facilitates the rotation.

6、U-shaped bracket: Connecting the beam and post, used to fix the beam.

The specific composition of the rotating guardrail varies according to different designs and manufacturers, but the above components are the basic building blocks of the rotating guardrail.