Collision barriers can be primarily categorized into several major types based on their structure, material, and application scenarios, with each type featuring unique design purposes and suitable environments.
Firstly, what is common isW-beam guardrailThis is a major force on the roads, named for its wavy cross-section. Typically made of galvanized steel plates and connected by pillars, its core principle is that when vehicles collide, the wavy beam absorbs the collision energy through its deformation and forces the vehicle to change direction back to the normal lane. It boasts good guiding and energy-absorbing properties, offering high cost-performance, and is applied to the roadside and median separators of expressways and first-grade highways.
Next, isRigid GuardrailPlease provide the Chinese content to be translated.Concrete GuardrailThese guardrails are typically made of precast concrete or cast on-site, such as the common New Jersey Barrier. They are nearly indeformable, forcing vehicles to climb and change direction by rolling over their sloped surface, thereby preventing crossings and rollovers. Their major advantage is the high level of protection and low maintenance requirements, but the drawback is poor cushioning, leading to significant impact on passengers and vehicles, and difficulty in repair once damaged. They are commonly used in critical areas such as bridge decks, tunnel entrances, and highway median strips.
The third category isFlexible GuardrailThere is no Chinese content to translate.Cable guardrailIt consists of several cables fastened to pillars. Its protective principle is to utilize the elastic deformation of the cables to absorb energy, resulting in a longer buffering time. This makes the deceleration effect on vehicles gentler, effectively reducing personnel casualties. It has good transparency, minimally affecting driving visibility, and is particularly suitable for use in mountainous areas with strong winds and snow, scenic spots, and dangerous road sections near the roadside.
