The horizontal radial pipe strut supports consist of a 29-mm diameter pipe (with varied but mainly 22 mm wall thickness) that transfers the exterior façade lateral load to the inner circular building slab edge. The radial strut pipes are rigidly connected with the horizontal girt while using a hinge connection on the other side—at the interior slab edge steel support—to allow the exterior façade to move up and down relative to the inner structure.