Calculating the load rating for a multi-bar hinge?

[Groovio]

I need some help in calculating the load rating for a multi-bar hinge. This hinge is different from a door hinge. It is fitted beneath the windows and can be used for either side-opening of the windows or for top-hung windows (windows for high-rise glazed glass buildings). The hinges are available in sizes from 8 inches to 30 inches. I need help in calculating the load rating of these hinges. I am attaching the photo of a sample hinge.

 

[Q_Goest]

Calculate the shear stress in the pins and compare to allowables.
Calculate bending loads in the beams and compare to allowables.
Calculate collapse stress in beams under pure compression and compare to allowables.
If fatigue or corrosion is a consideration, there's a whole lot more work to do.

Or just ask your supplier.