sentences:  The platform canopies were built with Vierendeel trusses and are structurally similar to the canopies at Düsseldorf Hauptbahnhof, which were scrapped in the 1980s, and follow the conceptually similar canopies of Darmstadt Hauptbahnhof built before the First World War.The Duisburg platform canopies were the first all-welded steel construction of this size.During the Second World War the station was heavily damaged in a heavy bombing attack on Duisburg by allied forces.