Desing of Enclosured for Tunnel

I need to design enclosures for a ventilation tunnel that provide air renewal to a machine house.
• The engine room is 125Pa above the atmospheric pressure.

o Depending on the area, the pressure profiles change, it is part of your analysis.
o Supply fans will work at 6inwg.

• Safety factor 1.5.

The enclosures must be in metal structure, the calculation memories, the selection of materials, profiles, loads and the type of anchor must be considered.
In the anchor, it should be taken into account that it should not be specified what type of anchor should be used and what the conditions of the concrete where they are placed. Preferably anchors of type Pos installed.