The advantages of Expanded Metal Fencing in shock and crack resistance

Compared with steel bars, metal mesh has the following advantages in terms of shock resistance and crack resistance:

(1) The metal mesh is expanded with the original steel plate, the meshes are evenly connected, the whole mesh plate is integrated, and the bearing capacity is evenly distributed. Its own weight is light, but its bearing capacity is large

(2) The metal mesh is not welded, woven, or tied with iron wires, but the whole mesh itself is very strong.

(3) After the metal mesh is expanded by the incision, the steel plate between the meshes has become a square strip, and the adhesion to the concrete is particularly strong, and it is not easy to be loosened by shock and burst. Also, the thickness of the concrete surface can be reduced.

(4) The metal mesh has a remarkable anti-vibration and anti-cracking effect, which can not only greatly reduce maintenance costs, but also save a lot of materials (including steel bars and cement), and more importantly, ensure smooth roads.

The use of Expanded Metal Fencing can reduce the weight of the bridge body and save materials: Using Expanded Metal Fencing TMD3030 instead of the original ∅6 steel mesh for comparison, with a 10×20cm spacing of 3.74kg per square meter, the amount of steel used can be reduced by 2.33kg/m2 . For example, if the road surface of a bridge is 20.0m2, the weight of the bridge body can be reduced by 46.6kg. In addition, the concrete of the concrete pavement layer is reduced from the original 8cm to 6cm (note: the best effect is to place theExpanded Metal Fencing 2.5-3cm away from the cement surface), which will reduce the weight of the bridge body even more. It also saves a lot of steel and concrete. Especially on long-span bridges, the use of a whole piece of Expanded Metal Fencing for sidewalks, bridge deck paving and separation belts will greatly reduce the weight of the bridge. As a pedestrian pedal or maintenance channel, the Expanded Metal Fencing has the advantages of non-slip, transparent, light weight and strong bearing capacity.

Easy construction and low cost: The standard specification ofExpanded Metal Fencing is 1.2×2m, and the area of each sheet is 2.4m2. During construction, as long as the edges of the mesh are overlapped a little, and the concrete is covered after laying flat, there is no need to use a large number of people to lay the steel bars and bind the iron wires, which can save a lot of manpower. Accelerating construction speed, ensuring engineering benefits, and saving materials (rebar and cement) can reduce construction costs. In today's rising labor costs, the expansion net is the preferred material. The New Macau-Taipa Bridge in Macau-Taipa was constructed by the Fourth General Bureau of the Ministry of Communications. The use of Expanded Metal Fencing GR50050 pedestrian treads instead of the original steel bridge decks for the maintenance of pedestrian passages not only reduces the weight of the bridge body by 150 tons, but also reduces the cost of construction by nearly 1 million yuan. Application of highway anti-glare belt. At present, in addition to being widely used as a highway protection net abroad, it is also used in anti-glare belts. It has the advantages of convenient construction, durability, beauty and transparency, and excellent anti-glare effect, and is adopted by the engineering community.