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1.The corrugated beam guardrail plate is the primary method of semi-steel guardrail plate, which is a connecting structure with corrugated steel guardrail plate spliced together and supported by column. 2. Wave-shaped guardrail plate uses the deformation of soil foundation, column and crossbeam to absorb collision energy, and forces out-of-control vehicle to change direction, return to the normal direction of travel, prevent vehicle to rush out of the road, in order to protect vehicles and passengers, cut the incident constitutes a loss. 3. The corrugated beam guardrail plate has the talent of absorbing collision energy, has the function of inducing the horizon, can be harmonious with the travel line, and has the beautiful appearance, can be used in small radius bends, the damage is simply replaced. Hot Dip Galvanized Highway Guardrail Roadway Safety Galvanized Highway Road Crash Barrier Traffic Barriers

With the rapid development of highway construction, the safety of highway guardrail network is particularly important. Highway Guardrail Network to ensure road safety, selection and structural design as an important traffic facilities, directly related to the role of safety, it can provide. In the face of this trend, people are eager to improve road safety. Highway Guardrail Network, especially when vehicles are facing emergency dodging and out of control rushed out of the road, causing accidents inevitably occur, highway guardrail, safety is crucial. Highway Guardrail Network, although can not reduce the occurrence of accidents, but can greatly reduce the number of casualties caused by accidents. Highway Guardrail plays the role of safety protection principle: high-speed vehicles have a lot of kinetic energy. When the ambulance, dodge, lost control toward the highway fence. Highway guardrails are designed to avoid serious vehicle collisions and casualties. Highway Guardrail Safety Design: its mass and speed of the vehicle, the common small vehicle, mass and speed of the kinetic energy of 80 km and 120 km, respectively. On these vehicles the mass is roughly equal and the vehicle can reach the high speed of the main factor to determine the vehicle's kinetic energy. Of course, highway guardrail again important, but there is a foundation can not change, that is, the quality of the guardrail you buy to meet standards, so, buy guardrail, choose good manufacturers, good enterprises, is very important

Highway Guardrail is the main form of semi-steel guardrail, which is a continuous structure with corrugated steel guardrail panels connected with each other and supported by main columns. The effect of absorbing energy by vehicle on collision is not easy to crash, but also can protect the vehicle and the driver. The bending of highway guardrail can increase both aesthetics and strength of guardrail. The automatic production line is formed by extrusion, the surface is clean and non-damaged, and has strong anticorrosion Anti-corrosion, anti-aging, anti-sun, high resistance, low temperature and other characteristics, outdoor environment, the service life of up to 10-25 years, simple structure, beautiful and practical, easy to transport, installation, anti-theft performance, limited by the actual terrain small, for Mountain, slope, multi-bend zone adaptability, moderate cost, suitable for large-scale use.

The main use of highway guardrail in our country is the corrugated beam steel guardrail, because the corrugated beam steel guardrail has certain steel and toughness, when the vehicle collides, the plastic deformation is big, the damage is easy to replace, and it has good sight-inducing function, can Be well coordinated with the Road Linear, beautiful appearance. The Guardrail Board of Expressway has the characteristics of anti-corrosion, anti-aging, anti-sun, weather resistance and so on. For anti-corrosion forms can be used with electroplating, hot-plating, spray, dip mode. FEATURES: anti-corrosion performance, anti-aging, beautiful and generous, safe, easy and fast installation. Under the action of external forces, the impact force is absorbed by the deformation of Guardrail Plate and column to protect pedestrians and vehicles. USES: Expressway Collision Prevention Facilities, isolation and other facilities. It is mainly used for traffic safety and security engineering such as expressway, first-and second-class highway, provincial road, county road and rural road scenic spot, large-scale parking lot, etc.

Hot dip galvanizing, also known as hot dip galvanizing and hot dip galvanizing, is a widely used and effective metal anti-corrosion method, which is mainly used in metal structure equipment in various industries; It immerses the derusted steel parts into the molten zinc melted at about 500 ℃, so that the zinc layer is attached to the surface of the steel members, and then plays the role of anti-corrosion and rust prevention. Hot dip galvanizing is developed by older hot-dip galvanizing methods. It has been 140 years since France applied hot-dip galvanizing to industry in 1836. However, the hot-dip galvanizing industry has been developed on a large scale with the rapid development of cold-rolled strip in recent 30 years. More than 90% of highway corrugated guardrails are treated by hot-dip galvanizing process, which is the key to affecting the durability and service life of corrugated guardrails. The hot-dip galvanized corrugated guardrails have anti-corrosion and scratch resistance, thick zinc layer, long service time and good anti-corrosion and anti rust effect. At present, there are three commonly used hot-dip galvanizing standards in the industry: national standard hot-dip galvanizing 600g / ㎡, non-standard 300g / ㎡ and 100g / ㎡. National standard hot-dip galvanizing is often used for class I highways such as general highways, and non-standard hot-dip galvanizing standards are mostly used for county and township highways and rural highways. After hot galvanizing, the corrosion resistance and service life of corrugated guardrail will be greatly increased. Under the condition that the outdoor normal environment is not damaged, the galvanized 600g corrugated guardrail can be used for 15-30 years, and the one with thinner zinc layer can also be used for 3-5 years.

(1)Requirements for the design of highway guardrail structure In the basic requirements of expressway corrugated guardrail design, the structure and function of guardrail is the most important point, and the design of guardrail should consider the role of traffic safety. Different road sections should adopt different design requirements to meet all safety requirements of roads and traffic, easy to install, disassemble and replace. Guardrail is a long-used traffic facilities. When it is damaged by accident or natural disaster, it can be disassembled or replaced separately, which can save a lot of manpower and material cost in installation and maintenance. (2)the requirement for the color and function Color is an important part of traffic safety identification. The colors of traffic facilities in our country are based on red, yellow, green, white, blue and black. In the guardrail design, should be in accordance with the color requirements of traffic laws and regulations carefully marked, concise and clear.

The same is the use of corrugated guardrail, highway guardrail, the price is generally 120-160 yuan/meters, and the rural road guardrail, the price is about 70-100 yuan/meters. The reason for this price difference is: 1. materials. According to the Industry Standard Rules issued by the Ministry of Communications, the thickness of guardrails on highway should not be less than 4.0 mm, while those on rural roads are generally 3.0 mm or even 2.5 mm. 2. Specification, the specification of highway guardrail is higher than the requirement of rural guardrail. Highway Guardrail Plate Thick, post is also high, the use of connectors is a better anti-block energy absorption; Rural Road Guardrail Plate Thin, column is also low, the use of connectors brackets, energy-absorbing effect in general. 3. anti-collision level, on the highway driving cars, the speed is very fast, therefore, the required anti-collision level is also very high. Expressway traffic flow, speed is also fast, more use a class materials, rural road traffic flow is small, slower use B class or C class in the majority. 4. surface treatment, zinc or zinc plating alone + spray. Surface anti-corrosion treatment is divided into national standard and non-standard, relatively speaking, the materials used in the highway are all of the national standard level, zinc coating thickness of 600g per square meter, 270g/m2 + 76m/m2 coating coating coating coating coating; In rural areas, the undulating guardrail with thin galvanized layer is usually used, some galvanized amount is 300g/m2, some even less than 100g/m2, and the undulating guardrail of rural road is also thin, generally about 46m/m2. In the normal use of outdoor conditions, just need to do a regular routine maintenance, corrugated guardrail service life can reach 15-30 years.

1.Hot Dip galvanized plastic coating The raw material of guardrail is galvanized by pressing and then sprayed with plastic, the thickness of the galvanized layer is 270 g/m ~ 2 and the thickness of the coated layer is 76 um/m ~ 2. The corrugated guardrail thus treated has good oxidation and anti-corrosion effect, service life up to 15-30 years, the general highway and other first-class highway will be installed hot-dip galvanized spray guardrail. 2.Galvanized whiteboard spray Galvanized whiteboard spray treatment even using galvanized sheet directly pressed for spray, generally in this case, galvanized sheet zinc layer is thin, about 100g/m2 or less, spray about 46 m/m2 or so, the effect of anti-corrosion and anti-rust is worse than that of hot-dip galvanized coating, and the protective working life is shorter. It can be used for 3-5 years or so, and the effect of anti-scratch is poor, but the cost is lower than that of hot-dip galvanized coating, many will be installed on rural roads and county and township roads.

The service life of hot-dip galvanized spay-plastic barrier can reach over 30 years. The advantages of hot-dip galvanized spay-plastic barrier are waterproof, acid-resistant, corrosion-resistant, anti-aging, paint-free maintenance and so on. The hot-dip galvanized spay-plastic guardrail has bright color, bright appearance, simple and generous appearance, smooth line shape, service life of more than 30 years, and various colors, can change the appearance of a single steel guardrail. The wave-shaped guardrail is treated by hot-dip galvanizing, and the superposed surface is treated by the electrostatic spraying process. It has the functions of anti-corrosion, anti-rust, anti-ultraviolet Ray, anti-fouling and surface self-cleaning. After being sprayed by rain spray brush and Water Gun, it can be as bright as new. Corrugated guardrail is a professional guardrail product for highways and expressways. The utility model has the advantages of simple structure, simple appearance, convenient transportation and convenient installation. Generally speaking, the wave guardrail is mainly used in expressway, railway, Bridge, stadium, airport, station, service area, free trade zone, open yard and port, and has been widely used in all walks of life.

1. anti-blocking type the guardrail and posts are connected by anti-blocking blocks. The standard is 196 * 178 * 200 * 4.5 mm. In general, Class A expressways all use this kind of connection method, which is of higher configuration level. Use with two wave form guardrail board, Guardrail Standard 4320mm * 310mm * 85mm * 4.0mm, column 140mm * 4.5mm * 2150mm. 2. Bracket type the connection method of wave form guardrail board and pillar is bracket connection, standard is 70 * 300 * 4.5 mm, match two wave form guardrail board operation, Wave Form Guardrail Board, wave form guardrail board standard 4320 mm * 310 mm * 85 mm * 3.0 mm, column 114 mm * 4.5 mm * 1950 mm. Generally is the B class highway installation many, to the waveform guardrail plate anti-collision ability also does not have the very big request, both avoided the data waste, together also saved the budget. 3. Three wave wing block commonly used in highways or river embankments, Binhai and other dangerous high coefficient sections, three wave shaped guardrail plate connecting the wing block, wave shaped guardrail plate, standard 300 mm * 290 mm * 200 mm * 4.5 mm, general column spacing for 2 meters, some will even be 1 meter, and the standard with three wave plate 4320 mm * 506 mm * 85 mm * 4.0 mm, column 130 mm * 130 mm * 6.0 mm * 2540 mm mostly.

The anti-collision performance of corrugated beam steel guardrail is to absorb collision energy through the friction between vehicle and guardrail, the friction between vehicle and ground, and the elastic and plastic deformation of vehicle and guardrail itself, so as to prolong the action time of collision process, reduce speed, ensure personnel safety and reduce vehicle damage. Q235 ordinary carbon structural steel is used for corrugated beam guardrail plate, column, barrier plate and connecting bolt (refers to the connecting bolt between column and guardrail). Its technical conditions shall meet the requirements of carbon structure diagram. The yield point of steel shall not be less than 235mpa, and the tensile strength shall be in the range of 375-460mpa. When the bending radius is less than 1.5 times, no crack will occur. The material of high strength bolt (refers to the splicing bolt between guard boards) shall be 45 steel or 20mntb steel, the yield point of steel shall not be greater than 990mpa, the tensile strength shall be greater than 1100mpa, the elongation shall be greater than or equal to 10%, the shrinkage rate shall be 42% and Rockwell hardness shall be hrc33-99. The on-site inspection items of guardrail materials include: the size of guardrail column, guardrail board, anti blocking block, connection width and end related materials and galvanized quality. The galvanized thickness of the material shall meet the design requirements, and the zinc coating shall be free from falling off, pollution and damage, and the adhesion of the zinc layer shall be free from cracking and falling off after knocking as required.