Steel deck construction precautions

(1) The size of the steel components should be checked first during the lofting operation to avoid lofting errors caused by the installation errors of the steel components.

(2) The edges, holes, and corners of the column should be cut out, and the installation speed can be accelerated and the installation quality can be ensured by doing it on the ground.

(3) When laying the steel deck, fix it first. The method is to fix the end and the flange of the steel beam by spot welding with a distance of 200mm, or each rib of the steel plate, when the steel deck is longitudinally connected to the beam, fixed by jump welding, with a distance of 450mm ～600mm, the overlap of two adjacent steel decks is also fixed by pick welding. When laying, the steel deck female buckle is used as the reference starting edge, and the laying is carried out in sequence according to the principle of first inside and then outside (the main radiating road will be paved first).

(4) When installing the steel deck, the reference line shall be set at both ends of the steel deck, and the flange edge of the span steel beam shall not be less than 50mm.

(5) Visual inspection of studs. Qualified studs should also be struck with a hammer in accordance with the requirements of the specification to bend them by 30°, and check whether there are cracks in the welded parts.