Floor deck, building profiled steel plate, its cross-section into V-shaped, U-shaped, trapezoidal or similar waveforms, mainly used as permanent formwork, can also be selected for other purposes.
Widely used in power plants, power equipment companies, automobile exhibition halls, steel structure factory buildings, cement warehouses, steel structure offices, airport terminal buildings, railway stations, stadiums, concert halls, theatres, large supermarkets, logistics centers, Olympic stadiums and gymnasiums and other steel structure buildings.
Generally, the spacing of steel column network is 5-9.0m *8-15m, and the spacing of secondary beams is 3M, while the length of the bearing slab is 4.97-8.97m. It is difficult to transport and install, especially when the bearing slab is lifted vertically from the arc zone. It is difficult to insert the supporting slab between the upper and lower beams, and the normal welding procedure of secondary beams is disturbed. Controlling the length of cutting stock to 3-6 M can avoid the problem that it can not be lifted between secondary beams during vertical transportation. Special soft sling is used for lifting floor slab. Whether the soft sling is torn or cut should be checked during each hoisting. The probes should be prevented when the floor deck is placed on the steel beam. When laying the material, the operator should wear the safety belt and ensure that the edge is fixed on the surrounding safety rope while laying the material. Welding is joined by penetration spot welding. Arc initiation test welding of edge and corner materials should be prepared before welding, and welding current should be adjusted. Because there is no horizontal formwork and vertical support at the bottom of floor deck, the distribution of materials should not be too centralized when pouring concrete, so plate vibrator should be used to distribute vibration rammer in time.