The functional characteristics of river guardrail:
1. Separation function: The road bridge guardrail separates motor vehicles, non-motor vehicles and pedestrian traffic, and separates the road longitudinally in section, so that motor vehicles, non-motor vehicles and pedestrians can drive separately, which improves the safety of road traffic. Improved traffic order.
2. Warning function: Make the outline on the guardrail simple and clear through installation, and warn the driver to pay attention to the existence of the guardrail and pay attention to pedestrians and non-motor vehicles, so as to prevent the occurrence of traffic accidents. .
3. Blocking function: the road and bridge guardrail will block bad traffic behavior and block pedestrians, bicycles or motor vehicles trying to cross the road. It requires the guardrail to have a certain height, a certain density (referring to the vertical fence), and a certain strength.
The cement base anti-collision guardrail is set to avoid the fence, and the main purpose is to reduce the collision severity. This is for the car to absorb the collision energy and achieve the purpose of protecting the safety of the elastoplastic deformation, friction and the passengers in the car. By itself, and other important safety facilities of the car, the barrier deforms and damages to prevent the occurrence of serious damage.
In addition, to meet the strength requirements during the first contact of the vehicle, as a conflicting component, a good guard must be guided to absorb energy performance. Stop substantive damage safety protection to ensure that vehicles, road construction and pedestrians outside the road guardrail are not content. As far as the median barrier is concerned, it should be an obstacle to stop the median vehicle from crossing into oncoming traffic, so that the vehicle should return to the normal travel direction. The trajectory of the collision of the anti-collision railing plate on the high-speed car is a smooth transition, and the lower left corner and less rebound does not affect the normal operation. Damage to the anti-collision railing, the driver and the lack of passengers and the vehicle collision and very little control, once the anti-collision railing is needed, it has good energy absorption capacity.