Reinforced truss floor decks involve processing the steel reinforcement in the floor into a steel truss and then welding this truss to galvanized corrugated steel plates to form a composite template. The reinforced truss floor deck system utilizes the upper and lower longitudinal steel reinforcement of the concrete floor, welding it to bent and shaped small steel reinforcement to create a structure capable of supporting wet concrete and construction loads during the construction phase. In use, the steel truss becomes the reinforcement of the concrete. The floor decks are laid perpendicular to the main steel beams, connected by grooves between the boards, forming a small truss structural system that can bear the loads in use. After the reinforced truss floor decks are manufactured, the engineering party will inspect the materials upon arrival. How to inspect them? The floor deck manufacturer explains the appearance quality inspection standards for truss floor decks:

1. Bottom formwork for steel truss floor slab

The base mold must not have any obvious large cracks, the galvanized steel base mold must not have any peeled galvanized layer, and the overlapping edges must not have any noticeable creases or deformations.

2. Steel truss appearance quality

The melted metal at the solder joint should be even.

Each product's number of weld dropout and missing welds must not exceed 4% of the total number of welds, and adjacent welds must not have any leaks or dropouts.

The solder joints should be free from cracks, porosity defects, and any visible deterioration.

3. Welded appearance quality of steel truss and bottom film

Each product must have no more than 2% of weld points missing or detached, and there should be no missing or detached weld points in any consecutive three weld points.

Each product's number of burn-through welds should not exceed 20% of the total welds, and no cavity larger than 4 square millimeters is permitted.

4. The connection between the support steel bars and the connection of the support steel bars to the upper and lower chord steel bars are made using arc welding.

The appearance quality should meet:

The weld seam should be smooth and flat, without any concave or convex welds.

The weld joint area must not have any cracks visible to the naked eye.