The anti-collision guardrail is made of stainless steel (stainless acid resistant steel) sheath and low carbon (C) steel lining pipe, which can be treated by electroplating, heat, plastic spraying, plastic dipping and other methods. As the anti-collision guardrail product of expressway, anti-collision guardrail has the characteristics of anti-corrosion, anti-aging, sun resistance, weather resistance, etc.
The anti-collision guardrail is fixed with connecting accessories and hot-dip galvanized pipe support, which is more economical, beautiful in appearance and less wind resistance. The galvanized and plastic coated double coating can extend the service life and reduce maintenance costs.
The anti-collision guardrail is made of galvanized steel pipe, and its surface is treated by electrostatic spraying and other processes. The plastic layer of the product can resist ultraviolet rays, has the characteristics of non cracking, non cracking, bright color, smooth surface and other characteristics, and is extremely popular in the market. The surface of the column is galvanized and sprayed with plastic, and the color can be customized according to the actual needs.
The anti-collision bridge guardrail has been applied in many places and has become a scenic spot everywhere in the social environment. The anti-collision bridge guardrail is a common building and decoration in the sidewalk of outdoor streets, parks, pedestrian overpasses and viaducts. Around the platform foundation, on both sides of the road, on both sides of the stairs, corridors and pavilions, pavilions, pools, bridges, etc., there will be aluminum alloy wooden railings. It usually has the function of safety protection, and its forms can be said to be diverse, some of which are decorative, anti-collision bridge guardrail forms, virtual reality and its location. Environment is closely related to landscape requirements. More empty fences are set to avoid too many visual obstacles, so as to achieve the effect of watching waves and reflecting light.
During the use of anti-collision guardrail, attention should be paid not to climb the guardrail at will, which will not only damage the guardrail, but also put yourself in danger or even life danger. The other thing is to keep the anti-collision guardrail clean.
The anti-collision bridge railing is generally made of domestic low-carbon steel wire, aluminum magnesium alloy wire or aluminum alloy materials; The anti-collision bridge railing has the characteristics of good impact resistance, low cost, long service life, etc; Easy and fast installation: quick installation with friction type connection or proprietary connection accessories; Good flexibility: the steel pipes are subject to quenching and tempering heat treatment (HRT400) or cold processing; Good weather resistance: the surface has better self-cleaning performance after plastic spraying treatment; Good environmental performance: production process (such as high temperature heating); Good decoration effect: the surface treated by electrostatic spraying makes the product look clean, bright and lasting. 1. The anti-corrosion coating of galvanized steel plate is uniform, fine and dense, with adhesive force; The anticorrosive coating of galvanized steel plate shall be uniform, fine and dense with adhesion. 2. Corrosion resistance: the corrosion resistance of specially treated galvanized steel sheet.
Performance requirements for highway crash barrier: 1) strong protection capability. This means that the structure of the guardrail board should have a certain compression resistance. It will not be easily broken by vehicles. The traffic volume of urban roads is large, once an accident occurs. The economic loss is also large, and it is easy to cause traffic congestion, so the guardrail with sufficient strength can play a protective role, especially in the road sections with large traffic volume of heavy trucks, such as the guardrail with strong anti-collision ability of the median separator, which can avoid secondary collision accidents with opposite vehicles. 2) Good guidance ability. This means that after the vehicle collides with the guardrail, it can be smoothly led out without excessive rebound, which will lead to a secondary accident with the vehicle in the same direction. 3) Good economy and land saving. While meeting the anti-collision and guidance performance of the guardrail, the amount of guardrail materials should also be reduced to be economical. In addition, China's land resources are more like this in cities, so we should try to use guardrails with small floor area to save space and reduce project cost. 4) Beautiful appearance. The corrugated anti-collision guardrail board of expressway shall be consistent with the surrounding environment of the road, and the guardrail can be beautified by greening and other means. 5) Easy maintenance. After an accident, if the guardrail can be repaired in a short time, the impact on traffic can be reduced, and traffic congestion can be avoided or alleviated. Therefore, simple maintenance is also very important.
There are many specifications of anti-collision guardrails. The specifications of guardrail boards are mainly based on the thickness of the boards. The specific thickness of the boards is mainly determined according to the specific highway grade. The anti-collision guardrails used in high-grade sections have higher specifications but lower specifications. The anti-collision bridge guardrail shall be assembled for technical planning, processing and manufacturing, surface coating production and devices, so as to meet the requirements of high strength and safety of anti-collision bridge guardrail. Therefore, safety planning should be strictly considered when designing anti-collision bridge guardrails.
