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An airlines company was seeking a solution to allow them to get a large airplane with high tail clearance requirement into an aircraft hangar which has already reached the allowable height limit of its zone and the roof height couldn't be further increased. The design was a series of trusses with maximum height at the middle of the hangar, where the tail needs to pass, and it tapers down towards the edges. There were double height office blocks, at each side of the hangar, which support the air handling units.
As a result of our structural value engineering, we introduced a diagonal member connecting the outer office column at roof level to the truss at the eave, between the air handling units, and another member connecting the inner column to the first internal joint of the truss and changed the design of the truss to maximize the section at the edges and minimize the section in the middle, thus achieving the required headroom for the tail of the aircraft while achieving major tonnage reduction.