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brief introduction
A waveform guardrail is a protective barrier set up in the middle and on both sides of a highway to prevent pedestrians and vehicles from crossing the road without following traffic rules, providing safety and property protection for pedestrians and vehicles< br />
The main form of semi-rigid guardrail is the expansion of corrugated beam guardrail on highways. It is a continuous structure composed of corrugated steel guardrail plates spliced together and supported by main columns. It uses the deformation of soil foundation, columns, and beams to absorb collision energy and force out of control vehicles to change direction, returning to normal driving direction, preventing vehicles from rushing out of the road, protecting vehicles and passengers, and reducing losses caused by accidents< br />
The composite waveform beam guardrail can be used on narrow median strips. For sections where vehicles crossing the road (bridge) may cause serious consequences, it is recommended to strengthen the corrugated beam guardrail. The utility model of galvanized waveform guardrail relates to a composite waveform plate movable steel guardrail used at the opening of the highway median strip. The guardrail consists of two waveform steel guardrail plates and two columns fixed and clamped between them. The two columns are fixed and clamped between the two waveform steel guardrail plates. When a vehicle collides with it, the corrugated steel guardrail plate has good collision resistance and energy absorption, which makes it not easy to be damaged and can also provide good protection for the vehicle and passengers. When road maintenance or other reasons require merging, it is convenient to pull out and remove the various guardrail columns at the opening to open a passage for vehicle traffic< br />
Specifications
Double wave waveform guardrail board: 4320 * 310 * 85 * 2.75/2.85/3/4< br />
Three wave waveform guardrail board: 4320 * 506 * 85 * 3/4< br />
Double wave column: 114 mm×4.5mm/4mm× Height< br />
Three wave pillar: 140; mm×4.5mm/4mm× Height< br />
Specification of waveform guardrail board: board length 4320MM;, Width 310mm, thickness: 3MM, 4MM& A 1-ton guardrail can be laid: 80 meters for 3mm thick and 61 meters for 4Mm thick. Each kilometer weighs 12.3 tons with a thickness of 3MM and 16.388 tons with a thickness of 4MM.
Specifications for waveform guardrail columns: diameter specifications of 114 and 140MM& nbsp; The length is generally 1.25 meters, 1.55 meters, 1.85 meters, 1.95 meters, 2 meters, 2.15 meters, 2.27 meters according to engineering requirements; The thickness of the column pipe wall is 4.5mm 4MM< br />
Related parameters of waveform guardrail
1、 The width of the fence is 310mm, and the thickness is 3MM and 4MM. One ton of guardrail board can be laid: 80 meters for 3mm thick and 61 meters for 4Mm thick. Each kilometer weighs 12.3 tons with a thickness of 3MM and 16.388 tons with a thickness of 4MM< br />
2、 Column: The thickness specifications of Q114 and Q140MM are generally 1.2 meters, 1.4 meters, 1.85 meters, 2 meters, 2.15 meters, 2.27 meters according to requirements, and the wall thickness is 4MM/4.5MM< br />
3、 Use 250 guardrail boards per kilometer. The spacing between columns is 4 meters, with 250 columns per kilometer, 2 ends, 250 column caps, 250 sets of screws, 250 brackets, and 250 anti blocking blocks< br />
4、 The specifications of the wave protection fence are 4.32 meters long, 505 millimeters wide, and 3 millimeters and 4 millimeters thick< br />
The specifications of the wave protection fence are 4.32 meters long, 310 millimeters wide, and 3 millimeters and 4 millimeters thick. Industry standard JT/T281‐ 2007 "Highway Wave Beam Steel Guardrail" Hot dip Galvanized Wave Beam Steel Guardrail and Column: Quality of Hot dip Galvanized Anti corrosion Coating Galvanized Adhesion g/m2 Average Galvanized Adhesion Plate≥ 600 column anti blocking block≥ 350 low galvanized adhesion plate≥ 425 pillar anti blocking block≥ 275 plating thicknessμ M average coating thickness plate≥ 85 pillar anti blocking block≥ 50 lower plating thickness plate≥ 61 pillar anti blocking block≥ 39 hot-dip galvanized+polyester electrostatic spraying double coating waveform beam steel guardrail and column. Average coating adhesion amount g/m2 board≥ 270 column average coating thicknessμ M board≥ The average thickness of the plastic coating layer on pillar 39; M board≥ 76 pillars
Characteristics of waveform guardrail
1. The waveform beam guardrail is made of both steel and flexible materials, with strong ability to absorb collision energy and good visual guidance function. It can coordinate with the road alignment and can be used on small radius curves. Damaged areas are easy to replace< br />
2. It has the characteristics of anti-corrosion, anti-aging, sun resistance, weather resistance, etc< br />
3. During normal operation of the highway, the guardrail can be easily inserted into the pre-set insertion holes at the opening using plug-in columns, providing isolation and protection. At the same time, it echoes the guardrail strip outside the highway, neat and uniform, and aesthetically matched< br />
