highway guardrail safety

The importance of the highway guardrail safety

When vehicles collide with the highway guardrail, the corrugated steel highway guardrail has good impact resistance and absorbs energy, and it is not easy to be knocked down, and it can also play a good protective role for vehicles and personnel. So highway guardrail safety is very important

The highway guardrail is used in highway, first grade, two grade highway, provincial road, county road and rural highway scenic spot, large parking lot, hot galvanized wave protection fence and other safety protection facilities.The waveform highway guardrail safety bending is to increase the beauty and increase the strength of the balustrade, both of them; the automatic production line is extruded and formed, the surface is clean and clean, the anticorrosion is very strong, the surface treatment is mature, the anti-corrosion, anti aging, anti sun, wave beam steel guardrail is high, low temperature and so on.

The service life of the outdoor environment can reach 10-25. Product structure is simple, beautiful and practical, easy to transport, installation, good anti-theft performance, limited by actual terrain, high adaptability for mountain, slope, multi bend area, moderate cost, suitable for large area.

1.The highway guardrail safety is the main form of semi steel guardrail. It is a continuous structure which is joined together by corrugated steel guardrail and supported by the column.

2.It uses the deformation of the soil foundation, the column and the beam to absorb the collision energy, and force the uncontrolled vehicle to turn in the direction, return to the normal running track, avoid the vehicle running out of the road, to protect the vehicle and the passenger, and reduce the loss caused by the traffic accident.

3.The corrugated beam guardrail steel flexible phase also has the function of absorbing the energy of collision, and has the function of line of sight induction. It can be coordinated with the line shape of the road, the appearance is beautiful, it can be used on the small radius bend, and the treatment of the damage is convenient to replace.

W board collision guardrail and collision guardrail are the same, but this is just a different form of address. In every city in China, there are more or less different names of wave guardrails, such as corrugated board guardrails, guardrails, wave beam guardrails, W board collision guardrails, ripple barrier guardrails and some nouns, such nouns. The only one is a kind of product - the highway guardrail safety.

The scope of safety protection: on the issue of traffic protection, it is unrealistic to protect 100% of the accident vehicles, only to protect most of the accidents. Under the actual road traffic condition and economic environment, it is more appropriate for the accident vehicle to be used as the scope of protection for the project, and it is also an international practice in 85%.

highway guardrail post

highway guardrail safety

Collision model selection: according to the "people-oriented" principle of traffic safety, the main protection of the collision accident in the guardrail is the safety of the crew, because I, the proportion of vehicles must take into account the factors of the number of vehicles. Although I pass the mountain highway traffic flow composition small and medium-sized bus stop total traffic 51.1%, bus only 6.6%. However, with the number of vehicles as the proportion of the weight converted, the bus is close to 85%, and the bus is only 6.6%. However, with the weight of vehicle load as the weight conversion, the passenger car is close to 85%, of which the largest proportion of the large passenger car is 37.8%., so the car and the large passenger car are used as two standard models for the collision experiment. The passenger car is high in speed and light in quality. It is mainly used to test the impact acceleration and barrier plate guide of the crew. Large passenger cars are of high quality, higher speed than wagons and light quality.

It is mainly used to test the impact acceleration of passengers and guide function of guardrails. Large buses are of high quality and higher speed than wagons. It is the biggest collision ability. It is mainly used to test highway guardrail safety the collision resistance and guiding function of the guardrail.

The total quality of the collision vehicle: the total quality 1425kg, which is the lighter representative car in the car, Shenlong Fukang, takes 1.5T as the total quality of the car. The total quality of 85% of the large buses is below 15t. Taking into account the full load factor, the total quality of the large passenger cars is 14T .

Collision speed: the driver usually takes emergency measures when the vehicle is out of control, and the friction between the tire and the road increases when the tire is blowout. The speed of the vehicle collision barrier is generally 80% of the average speed of the vehicle. Based on the scope of project protection 85%, from a safety point of view, the project takes 0.8 times the speed of 85% vehicles as the experimental crash speed highway guardrail safety.

highway safety guardrail

Collision angle: the project team obtained the statistical results from the collision accident investigation data of the mountain highway guardrail crash. The collision angle of 85% of the accident vehicles is below 15 degrees, considering the consistent and safety factors revised with the standard, the impact angle of the project on the highway and the highway guardrail safety is 20 degrees.