EVA Roller Highway Crash Barrier Road Safety Barrier Systems

Roller Safety Barrier Highway Crash Barrier Highway Median Barriers Road Safety Barrier Systems

Introduction

The rotating crash barrier is composed of rotating barrel, crossbeam, column, reflective strip, casing, swing ring and connecting parts. When the rotating collision barrier is out of control vehicle impact, its rotating barrel in the impact force rotating, can slow down the lateral impact speed of the out-of-control vehicle, and drive the out-of-control vehicle back to the correct direction of travel. The rotating collision barrier can not only be used as road side guardrail, central divider guardrail, but also as a small bridge, channel, bridge guardrail of open culvert, its guiding performance, buffering performance compared to traditional guardrail products have a breakthrough improvement. In addition, the rotating collision barrier has all-weather guidance performance and reduced transverse width requirements, has the maximum buffer deformation length of flexible guardrail and has the transverse deformation characteristics of semi-rigid guardrail. The results of the crash tests show that the RG-SA and RG-SB-2 rotating barriers have a SB (SBm) crashworthiness rating. The comparison with other guardrail crash test results shows that the rotating guardrail has advantages in occupant acceleration, exit angle, exit speed and lateral deformation index.

Rotary guardrails rotary guardrail Features

Environmental performance

The rotary guardrail recycles waste rubber and plastic materials, in line with our basic policy of resource conservation and environmental friendliness. The material of the rotary bucket is a blend of EVA and polyethylene. Polyurethane EVA (rubber and plastic) is an emerging organic polymer material that is widely used in many areas of the national economy because of its excellent performance. The general advantages of polyurethane materials: a wide range of hardness (Shore A15 ~ Shore D90) in the same hardness than other elastomers, high wear resistance, high impact resistance, a wide range of rebound, compression 60% response rate of 100%. Suitable for high frequency flexing applications, good low temperature flexibility, special formulation, stable at 140°C, unaffected by ozone erosion, mould resistant, radiation resistant, corrosion resistant, high temperature resistant, low abrasion, does not absorb rainwater. It can be processed on standard equipment and can be bonded to wood, metal and most materials.

Noise reduction effect

It also has a noise reduction effect and is widely resistant to oil, grease and chemicals. The new material is used to produce bumper-to-bumper facilities that are highly resilient and have a high service life, tested to 30-50 years, giving a very good overall price/performance ratio.

The safety of personnel and vehicles is guaranteed

Due to the scientific impact absorption mode provided by the rotor guardrail, the instantaneous impact energy is transformed into rotational and frictional energy by means of rotational friction, effectively reducing the degree of damage to the vehicle. In addition, through the rotational movement to change the vehicle rebound angle, can regain the normal driving direction of the car, to avoid the occurrence of secondary accidents, the vehicle driver and passenger life safety can also be guaranteed. For a long time, China's highway guardrail form has been dominated by waveform beam guardrail, "elastic rotor guardrail" a change in the past monotonous form. Traditional waveform guardrail cannot solve the friction between the vehicle and the guardrail, causing secondary injury is difficult to avoid. The key is "elastic rotor guardrail" effectively avoids the actual running speed of the highway, traffic density and other reasons, as well as driver fatigue, snow and ice and other man-made or natural factors lead to the vehicle deviated from the normal driving lane, into the side of the road or road central isolation belt traffic accidents, while reducing the secondary injury caused by the possibility of causing secondary injuries is reduced, minimising injuries from accidents.

Rotary guardrails rotary guardrail Application prospects
Highways
Facts prove that researchers for all kinds of high-risk road development research rotary guardrail, applied to the highway side guardrail, central divider guardrail, bridge guardrail, overpass guardrail, car branch road, tunnel, toll station transition section and other parts, so that the accident vehicle forward direction is corrected, so as to avoid the accident vehicle appears lateral spin, roll over and other conditions lead to the normal running of the vehicle collision has achieved a better The effect.

The necessity of ordinary trunk highway application
Arterial highway mileage is much higher than the highway mileage, route technical indicators are often lower than the highway, reflected in the road round curve radius, high fill roadbed, high fill bridge head, mountainous cliff sections, etc.. However, according to different road grades, the design speed is generally in the range of 60, 80 and 100km/h, then the corresponding various technical indicators are lower than the highway. For example, the radius of the circular curve, while the actual operating speed is often more than the design speed, especially at night, overloading phenomenon is serious, once the collision, the vehicle itself inertia is very large, inevitably resulting in the destruction of the car, the safety risks are particularly prominent.