Between the ends of two welded wire meshes, the connection length of the rebar joint should be less than 1.3 times the minimum anchorage length, the connection area should not be less than 200mm, each welded wire mesh should have at least one horizontal rebar, and the interval between two welded wire meshes and one outer horizontal grid should not be less than 50mm.
When one of the two wire meshes in the lap area lacks a transverse rebar, the minimum lap length of the ribbed wire mesh should be 1.3 times the minimum anchorage length la, and not less than 300mm. When the diameter of the longitudinal rebar in the lap area is greater than 10mm, the lap length should be increased by 5 days.
The installation and inspection methods for rebar meshes: The primary development process for bridge rebar mesh installation is: welded wire mesh is used for rebar positioning according to the design drawings -- mesh installation -- mesh installation -- inspection. The primary order of rebar mesh installation is: installation of the base mesh -- additional pad mesh or rebar installation -- support surface mesh installation -- longitudinal and transverse surface mesh installation -- additional mesh and rebar installation.
When laying the bottom mesh, ensure the main load-bearing reinforcing bars are below the catchers; when laying the top mesh, the main load-bearing reinforcing bars should be above the catchers. When adjacent meshes overlap, the wire mesh should be securely tied at the center and both ends of the overlapping area, with no fewer than three tying points. Each node connecting the additional reinforcing bars to the welded mesh should be tied with wire.
Factors Directly Affecting the Performance of Reinforcing Mesh
Currently, cold-rolled ribbed steel mesh can be used in many industries, not just construction. Underfloor heating projects also utilize this type of mesh, directly improving project quality and the integrity of concrete.
Of course, our current wire mesh still has many developmental and research-driven classifications, especially the plain round steel mesh, which has become a widely used product in my country's construction engineering vocational schools. When used properly, this product can address many issues of concern to enterprises. To achieve further functionalities in construction wire mesh, the fundamental consideration must be the raw materials used in its production process.
In short, the functionality of construction wire mesh involves many aspects. Both the raw materials and the manufacturing process directly impact its performance. Therefore, companies purchasing wire mesh need to consider these factors to ensure they acquire suitable products.
