Abstract
During the SIXXI research (20th Century Structural Engineering: the Italian Contribution), new historical archives were exploited: WWII and its aftermath apperead, evitently, as importants periods for the history of structural engineering. The war for Liberation of Italy (1943-1945) was a unique occasion to test and stress structural design applied to “emergency” scope. An impressive cross-fertilization between the American methods and “know-how” of the Italian technicians featured the “fisrt aid” operations of the Alleys [This papers is framed in the SIXXI project (www.sixxi.eu), thanks to a ERC Adv Grant funding (PI S Poretti, T Iori)]
