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China Safety Regulations of Highway beam Guardrail

The China Safety Regulations of Highway beam Guardrail is based on the principles and relevant regulations established by the People's Republic of China industry standard "Technical Standards for Highway Engineering" (JTJ01-88), and is based on the experience of design, construction and operation of domestic highway traffic safety facilities and mature scientific and technological research results. .
The guardrail is one of the indispensable safety measures on the expressway. Its specific functions are as follows:



1. The highway beam guardrail is the main form of semi-steel guardrail. It is a continuous structure in which corrugated steel guardrails are spliced to each other and supported by columns.


2. It uses the deformation of soil foundation, column and beam to absorb the collision energy, and forces the out-of-control vehicle to change direction and return to the normal driving direction to prevent the vehicle from rushing out of the road to protect the vehicle and passengers and reduce the losses caused by the accident;


3, the highway beam guardrail has a strong ability to absorb collision energy, has a good line of sight induction function, can be coordinated with the road line shape, beautiful appearance, can be used on small radius corners, damage Easy to replace.


The guardrails on both sides have the function of inducing the line of sight, so a reasonable setting helps to alleviate the visual fatigue of the driver during driving and relieve tension, thereby reducing the incidence of accidents. During the construction of the wave guardrail, the information of various facilities should be accurately grasped, especially the precise position of various pipes buried in the roadbed.

During the construction process, no damage to the Traffic facilities is allowed. The high-speed guardrail uses the deformation of the soil foundation, column and beam to absorb the collision energy, and forces the out-of-control vehicle to change direction and return to the normal driving direction to prevent the vehicle from rushing out of the road to protect the vehicle and passengers and reduce the losses caused by the accident. The guardrails are spliced to each other by splicing bolts and are fixed to the columns or beams by connecting bolts.

The connecting bolts and the splicing bolts should not be tightened prematurely, so that the long round holes of the corrugated beams can be adjusted in time to make a smooth line shape and avoid local irregularities.