Design Of Steel Concrete Composite Structures Question Paper . Cold-Formed-Steel Design And Construction ( Steel Structure ) Cold-Formed-Steel Design And Construction ( Steel Structure ) 1. T he introduction of sheet rolling mills in England in 1784 by Henry Cort Steel Deck Institute The Steel Deck Institute Was - SDI Since 1939, the Steel Deck Institute has provided uniform industry standards for the engineering, design, manufacture and field usage of steel decks.