Fence knowledge introduce highway crash

Highway crash barrier is the most important transportation infrastructure , our highways are developed in the 1980s , its national economic and social development plays an important effect . Is an important highway maintenance and security facilities.
      Highway guardrail is a typical cold-formed steel products , the specification is 4320 * 310 * 3 The company introduced the American R425 strip mill used automatic leveling , precision feeding punching, 18 rolls slowly forming, cutting length computer and other advanced process conditions , to ensure maximum linear dimensions and the shape and position of the guardrail plate. Its cross-sectional dimensions in full compliance YB4081-92 standards.
      Uses : Widely used in highways. Material: Stainless steel metal fence panel technology areas of high intensity : The utility model fence panels , mainly for highway lane divided protection.
      BACKGROUND : It is now commonly used highway guardrail galvanized steel plate , resulting problems include : 1 , steel rust easily oxidized , 2, easily scratched car , 3, the production cost is relatively high , 4, lighter impact likely to cause deformation of the fence 5 , the manufacturing process prone to contamination. The utility model technical problem to be solved is to overcome the deficiencies that exist in the prior art , and provide a good impact resistance , low cost , long life, high safety , environmental protection, highway guardrail good use of effects board. The utility model to solve the technical problems guardrail technology used in the program are: the fence panels wherein the plate body is made of high molecular weight PVC material , no corrosion, coating and other processing in production , truly green, and because the PVC material costs significantly lower than steel, its low overall cost ; mechanical structure of the guardrail was M -shaped, with a reinforcing plate hole exhibition along a direction parallel to the plate body , strengthen the hole as a hot-melt coated glass fiber reinforcement , while in the upper plate member to enhance the impact strength, the projection portion provided with two rows of holes and strengthening ribs .
      A , PVC new highway guardrail compared with existing technology, impact resistance, low cost, long life , high safety, environmental protection, etc. 310MM width tailgate thickness : 3MM, 4MM. 1 t fence panels can shop : 80 m thick 3MM , 4MM 61 m thick . Miles per weight 12.3 tons thick 3MM , 4MM thick heavy 16.388 tons .
      Second, the column : roughness specifications Q114, Q140MM length according to the requirements of generally 1.85 m , 1.95 m , 2 m , 2.15 m , 2.27 Mi Bi thick 4.5MM.
      Third, with 250 per kilometer fence panels. Column spacing of 4 meters per kilometer by 250 columns, ends 2 , column caps 250 , 250 sets of screws , brackets 250 , Fangzu block 250 .