Crashworthiness and energy absorbing function of guardrail
The corrugated guardrail and the corrugated steel guardrail board are spliced ??and supported by the main column structure installed on a continuous high-speed highway on both sides. The road is beautiful and tidy, and the driver information is safely managed, driving, protecting and vehicles, reducing the cause of traffic accidents. Loss, etc. However, on some highways, we often see that some guardrails are damaged or lost, causing serious safety hazards. Corrugated guardrails can bring us safety, and the continuous development of corrugated guardrails has been damaged by various influencing factors. There are two main reasons for the damage of the guardrail:
1. Natural factors.
Corrugated paper fences are installed along the road, subject to inclement weather. The surface of the guardrail was damaged and oxidized to different levels of education. When the guardrail is rusted, the guardrail will accelerate the secondary oxidation, thus greatly reducing the service life of the guardrail.
The installation method of the anti-collision board The construction process of the wave guardrail and the anti-collision safety guardrail is: the installation of the vertical column, the installation of the anti-blocking block, the top of the head and the hat structure, the installation of the working wave beam and the shape of the alignment line. The following measures are mainly adopted for the construction of the anti-collision guardrail: take the centerline of the road as the benchmark. In the past, when flying at the pole on the highway, it was considered the benchmark outer shoulder. Since there is no earth road for the roadbed, the uniform width cannot be obtained during the construction, which affects the accuracy of the column pair.
2. Human factors.
In the collision of his vehicle, due to the collision resistance and energy absorption effect of the guardrail, it is not easy to collide further while the vehicle occupants, and has a good protective effect. When the road is maintained for maintenance or other important reasons, we need to pass the connection, it is convenient to remove the pillar of the guardrail post at the opening, and open a channel to facilitate the passage of vehicles. The guardrail protects the vehicle and personnel safety colleagues, they will also be damaged and damaged.