A- Connection to steel structures:
To ensure integrity during installation, ends seat of the joists should be welded (Nominal weld).
The seat weld size Niazit-joist should be calculated, in the any case should not be less than 2.5cm each side, in total should not be less than 5 cm length and leg weld minimum 3mm.
B- Connection to concrete and masonry structures:
End of the joists must be minimum 10 cm concrete beam embedded, or 5 cm less than center of beam.