What is the standard height of highway guardrail design?
In the highway guardrail network installation should pay attention to several problems, in the highway guardrail network installation should pay attention to what are the problems? First of all, we need to know: the application of construction in the city is very extensive, but the installation height of fence is also a problem related to the use of safety; column fence height determines the basic installation height of isolation facilities, this index is an important parameter in the design of the fence, the value of height directly influence the cost and effect. The main consideration of the height of guardrail is the density of people and the terrain along it. 6 specifications for the use of cold-formed equilateral channel steel are provided for different force conditions, while other appropriate cross section steel is also available under the condition of strength and stability
The main consideration of the height of guardrail is the density of people and the terrain along it. 6 specifications for the use of cold-formed equilateral channel steel are provided for different force conditions, while other appropriate cross section steel is also available under the condition of strength and stability. From the main force direction of the channel column, the choice of specifications should make the core of the Y-Y axis (Iy) larger channel steel. The effective height of the national JTJ074-94 fence standard ranges from 1.6~1.8m, and this range of values takes into account the adult height to prevent crossing as the main design goal. It is observed that if people want to enter the highway, they usually destroy the guardrail, and the damage position is below 1.2m. Set up a high fence, although it can better prevent people from crossing, but it can not prevent people from entering the highway. What can really regulate people's behavior is legal awareness and social civilization. With the development of society and the improvement of people's legal consciousness, the number of people who violate traffic laws is bound to decline. Britain and other developed countries highway double ring fence design height is about 1.3 meters. Therefore, the fence should not be set too high, it is recommended in the general area, fence exposed height in the 1.2m-1.5m can be, the special areas in 1.6m is appropriate. This height of people is not easy to cross, but also saves investment. How much is the spacing between the posts of the guardrail net; because the height of the fence post is lowered, it is suggested that the column spacing should be 4m, and that it should be set at 201 5m per kilometre;
The main consideration of the height of guardrail is the density of people and the terrain along it. 6 specifications for the use of cold-formed equilateral channel steel are provided for different force conditions, while other appropriate cross section steel is also available under the condition of strength and stability. From the main force direction of the channel column, the choice of specifications should make the core of the Y-Y axis (Iy) larger channel steel. The effective height of the national JTJ074-94 fence standard ranges from 1.6~1.8m, and this range of values takes into account the adult height to prevent crossing as the main design goal. It is observed that if people want to enter the highway, they usually destroy the guardrail, and the damage position is below 1.2m. Set up a high fence, although it can better prevent people from crossing, but it can not prevent people from entering the highway. What can really regulate people's behavior is legal awareness and social civilization. With the development of society and the improvement of people's legal consciousness, the number of people who violate traffic laws is bound to decline. Britain and other developed countries highway double ring fence design height is about 1.3 meters. Therefore, the fence should not be set too high, it is recommended in the general area, fence exposed height in the 1.2m-1.5m can be, the special areas in 1.6m is appropriate. This height of people is not easy to cross, but also saves investment. How much is the spacing between the posts of the guardrail net; because the height of the fence post is lowered, it is suggested that the column spacing should be 4m, and that it should be set at 201 5m per kilometre;
