Steel mesh laying, should first draw up steel mesh equipment plan, steel mesh laying, the need to stop laying guidance according to the field theory and equipment personnel field efficiency. The two ends of the welded net must be stabbed into the beam and anchorage, when the longitudinal reinforcement of the steel mesh is fine, the bending deformation function of the steel mesh is used, the middle of the welding net is first bent upward, so that both ends can be stabbed into the beam, and then the steel mesh is smoothen.
When the steel bar is coarse welded net can not be bent, the end of the welding net can be less welded 1-2 steel bar, and then the two ends of the beam, and the straight bar using the site binding method, the reduced transverse reinforcement, additional reinforcement and welded net connection at each node should be selected steel wire binding.
Steel mesh bottom net selection of rack reinforcement arrangement and cushion net arrangement of two methods, rib reinforcement welding net of two-way reinforcement should be selected flat lap joint, should be set in the force is small, should be set apart from the beam side 1/4 net cross section, the lap length should not be less than 30DD for the lap direction, steel diameter and should not be less than 250mm.
Between the two pieces of welding net, steel lap joint small lap length should not be less than 1.3 times the small anchorage length la, and should not be less than 200㎜ in the lap area, each welded steel mesh transverse steel bar shall not be less than one, two steel mesh outside a transverse steel bar distance should not be less than 50㎜. When there is no transverse reinforcement in the two steel mesh in the lap area, the small lap length of ribbed steel mesh should be 1.3 times of the small anchorage length LA, and should not be less than 300㎜. When the diameter of the longitudinal force reinforcement in the lap area D ≥10㎜, the lap length should be increased by 5d.
The future inspection method of steel mesh equipment: the process of steel mesh paving is: the welded steel mesh should be located in accordance with the design drawing — mesh equipment — mesh — inspection and inspection. The next is the steel mesh pavement: the bottom of the equipment, additional mat net or steel equipment, support network pavement, vertical and horizontal surface network pavement, additional network and steel equipment.
Post time: 03-08-21