Formula to compare 2 structures

I will try to explain with my poor English.
On a French forum we have a discussion to compare two type of principle of building
First one named (in French !!) Strongall "flat"ticker plating and nothing behin
or conventional buiding with plating less tick, frame and stiffener and little "curved" plating .

I am not clear at all !!

First example :
plating 15 mm height of the plate 2000 mm and 1860 mm large, flat.

Second example :
plating 10 mm, height of the plate 2000 mm and 1860 mm large , with to frames of 110X12 section ( in the 2000 mm direction), stiffeners of 60X8 mm each 300 mm and a curve of 68 mm for the 2000mm height.

I want to compare the difference of the 2 structure, for each flat part I could (may be ) calculate that but I don't take all in "interaction" with the curvature ?

If someone could help he will be welcomed

Thanks

 

Taken from the ISO 12215-5