Highway guardrail is an important transportation infrastructure. my country's highway was developed in the 1980s, and it has an important influence on the development of the national economy and society. It is an important maintenance and safety guarantee facility for expressways.
The highway anti-collision guardrail is a typical cold-formed steel product, the specification is 4320*310*3 The automatic leveling of the strip used in the American R425 rolling mill introduced by the company, precision feeding and punching, 18 rolls slowly forming, computer cut-off And other advanced technological conditions, to a large extent ensure the shape, size and linearity of the anti-collision guardrail. Its cross-sectional size fully meets the requirements of YB4081-92 standard. Product use: Widely used in highways.
Material: stainless steel metal
Technical field of high-strength guardrail board: This utility model guardrail board is mainly used for segmentation protection of highway lanes. Background Art: Current highway guardrail panels usually use galvanized steel sheets, which may cause problems.
Disadvantages of guardrail
- The steel plate is easy to oxidize and rust
- Easy to scratch the car
- The production cost is relatively high
- Lighter impact force is easy to cause deformation of the guardrail
- The production process is prone to pollution.
The technical problem to be solved by the utility model is to overcome the above-mentioned shortcomings in the prior art, and provide a road guardrail with good impact resistance, low cost, long life, higher safety, green environmental protection, and good use effect. board. The technical scheme adopted by the guardrail of the utility model to solve the above-mentioned technical problems is: the guardrail board is characterized in that the board body is made of high molecular weight PVC material, and there is no need for anti-corrosion, spraying and other treatments in the production, and it is truly green and environmentally friendly. At the same time, due to the cost of PVC materials It is much lower than steel, and its comprehensive cost is low; the mechanical structure of the guardrail board is M-shaped, and the board body is provided with a reinforcing hole parallel to the board body along the direction of the board. The reinforcing hole is hot-melt coated with glass fiber as a reinforcing rib. In order to strengthen the impact resistance on the upper part of the board, two rows of reinforcing holes and reinforcing ribs are arranged on the raised parts. Compared with the existing technology, the new type of PVC highway anti-collision guardrail has the advantages of good impact resistance, low cost, long life, higher safety, and environmental protection.
The width of the fence is 310MM, and the thickness: 3MM, 4MM.
1 ton of guardrail board can be spread: 3MM thick 80 meters, 4MM thick 61 meters. The 3MM thick weighs 12.3 tons per kilometer, and the 4MM thick weighs 16.388 tons.
2. Column: Thickness specifications Q114, Q140MM length according to requirements are generally 1.85 meters, 1.95 meters, 2 meters, 2.15 meters, 2.27 meters and 4.5 mm thick.
3. Use 250 guardrails per kilometer. The column spacing is 4 meters, 250 columns are used per kilometer, with 2 ends, 250 column caps, 250 sets of screws, 250 brackets, and 250 anti-blocking blocks.
4. The specifications of the three-wave guardrail are 4.32 meters long, 505 mm wide, and 3 mm thick and 4 mm thick.
5. The specifications of the second wave guardrail are 4.32 meters long, 310 mm wide, and 3 mm thick and 4 mm thick.
