Steel or aluminum alloy connectors can be used between the curtain wall and the civil structure. Steel connectors can be bolted or welded to the main structure. When using bolts, the bolt diameter should be calculated, and the thread specification should not be less than M10, generally 12mm.
The number of bolts at each connection point should not be less than two. The thickness of the connectors should be calculated; the thickness of steel plates or steel profiles should not be less than 5mm, and the thickness of aluminum profiles should not be less than 6mm. L-shaped brackets and embedded plates are commonly connected using three-sided welding.
Whether using three-sided welding or L-shaped welding, the continuity of the weld at the corner should be considered, and the weld height hf should be reduced by one unit at the weld end.
Horizontal weld length: If the horizontal weld length is 80mm, the effective length of the horizontal weld in actual calculation is... 80-hf;
Vertical weld length: For three-sided circumferential welds, the weld is considered continuous at the corners. The horizontal weld height is reduced by one unit at the end, while the vertical weld height is not reduced further. For L-shaped circumferential welds, the vertical weld height is reduced by one unit at its end, similar to the horizontal weld height. For example, for an L-shaped circumferential weld, if the vertical weld length is 150mm, the effective length of the vertical weld in the actual calculation is 150-hf.