The wire mesh has great performance characteristics. If you are not used to it, you should know it is not comprehensive. However, it is suggested that you do not know too much about the theory, because you can know how to use the effect of wire mesh in practice. So let's let Xiaobian tell you about the use of steel mesh.
The steel mesh has good seismic effect. Reinforcement mesh is welded by longitudinal reinforcement and transverse reinforcement according to a certain distance and angle. According to the raw materials, it can be divided into cold-rolled rib mesh, cold drawn smooth round steel mesh and hot-rolled rib mesh, which are widely used in cold-rolled rib mesh. According to the trademark, diameter, length and distance of reinforcement, the steel mesh is divided into conventional steel mesh and non customized steel mesh.
Crb550 cold rolled ribbed steel bars or gb1499 hot rolled ribbed steel bars are generally used for steel mesh plates. The diameter of the steel mesh plate is 4-14mm, and the progressive diameter of 0.5mm can be used. Considering the transportation conditions, the length and width of the welding network shall not exceed 12m and 3.4m respectively.
The distance of steel bars (or longitudinal steel bars) in the production direction of welded mesh should be 100, 150, 200 mm, while the general distance of steel bars in other directions is 100, 150, 200, 300 mm, sometimes up to 400 mm. When the horizontal steel is single steel welded mesh, the nominal diameter of a fine steel bar shall not be less than 0.6 times of the nominal diameter of the thicker steel, that is, the Dmin sharpness is 0.6 damx. The shear welded net weld (in n) shall not be less than the product of 150 and the nominal section area of the coarse reinforcement.
Ensure the quality of the project: the steel mesh is produced by the automatic and intelligent production line, and the factory strictly controls the quality. Strictly control the grid size, reinforcement standard and quality. Avoid the loss of manual binding net, binding is not firm, binding error and Jerry building. The grid structure has good rigidity, good elasticity, uniform spacing and high strength of welding points. Thus greatly improving the quality of the project.
The steel mesh can improve the anti-seismic and anti crack functions: the longitudinal and transverse bars of welded steel mesh form a network structure, so it has good bonding and anchoring with specific properties, can evenly distribute and recognized loads, and can significantly improve the anti-seismic and anti crack functions of reinforced concrete structures. According to the actual test, more than 75% of the cracks can be reduced when the welded steel mesh is laid on the road compared with the manual binding mesh.