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Steel wire grating
? Steel wire grating is made by first welding multiple single high-strength steel wires horizontally and vertically into a square hole shape through resistance welding, and then coating the welded steel wires with plastic. A new type of reinforced grille.
Characteristics of steel wire grating
? It has the characteristics of high two-way strength and high rigidity. It is an ideal material to replace composite welded geogrids and woven geogrids.
This is because the steel wire grating has the following factors:
1. The strength of the steel wire grating joints (tensile resistance, shear resistance, tear resistance, torsion resistance) should be high, and the vertical and horizontal strength of the grille The force transmission performance of the joints of the ribs is better, and the force exerted by the transverse ribs can be transmitted to the longitudinal ribs through the joints, and vice versa. Therefore, it is required that the joints must have good integrity, and the joint strength must be relatively close to the strength of the ribs (not broken at the joints when tensile), or the strength difference between the two must be small to match, which is the most reasonable and economical. Otherwise, the strength of the joints is much lower than that of the ribs, and the tensile capacity of the high-strength ribs cannot be safely exerted, resulting in a structural consequence of waste like a large horse-drawn cart.
2. The total area of the grid bars and ribs of the steel wire grating should be as small as possible as small as possible, so as to ensure that the mechanical interlocking and interlocking effects are relatively large. That is to say, the mesh must bite as much area of soil as possible in order to give full play to its bite effect. However, the mesh size should not be too large, otherwise the stiffness of the ribs will become smaller, which will in turn reduce the bite force.
3. The bars and ribs of the grid should be perpendicular to each other in order to transmit the load more effectively. If the two are not perpendicular, the load transfer effect will be reduced and the reinforcement effect will be worse. This is different from false grilles (such as woven, composite welded). The nodes of the false grating are made of textile or composite welding, which has poor integrity and poor longitudinal and transverse force transmission performance.