Between the ends of two welded mesh pieces, the smaller overlap length of the steel bar lap joint should not be less than 1.3 times the smaller anchorage length la, and should not be less than 200mm. In the overlap area, the horizontal steel bars of each welded floor heating mesh piece should not be less than one, and the interval between the two steel bar mesh pieces and the outer horizontal steel bar should not be less than 50mm.
When one of the two steel mesh pieces in the overlapping area has no transverse steel bars, the smaller overlapping length of the ribbed steel mesh piece should be 1.3 times the smaller anchoring length la, and should not be less than 300mm. When the diameter d of the longitudinally stressed steel bars in the overlapping area is ≥ 10mm, the overlapping length should be increased by 5d for use.
The future inspection method for steel mesh equipment: The process of steel mesh paving is as follows: the steel mesh welding mesh should be positioned according to the design drawing - mesh equipment - mesh - inspection and inspection. The order of steel mesh paving is: equipment bottom mesh - additional pad mesh or steel reinforcement equipment - support surface mesh paving - longitudinal and transverse surface mesh paving - additional mesh and steel reinforcement equipment.
When laying the bottom mesh, it is important to note that the main reinforcement should be placed below the catch plate. When laying the surface mesh, the main reinforcement should be placed above the catch plate. When two adjacent mesh plates overlap, iron wire should be used to tie them firmly at the center and both ends of the overlap area, with no less than three binding points. Each node connected by additional steel bars and welded mesh is tied with strong iron wire.