The subject of this book is the design of aluminium alloy structures. The topic is treated from different points of view such as technology, theory, codification and applications. Aluminium alloys are successfully employed in the transportation industry; a parallel trend has been observed in the last decades in civil engineering structures, where aluminium alloys compete with steel (long-span roofing, bridges, hydraulic structures, offshore superstructures). This volume collects the lectures of outstanding international experts who are all involved in the codification activity of Eurocode 9 on Aluminium Structural Design. It illustrates, with particular reference to the fields of transportation and civil engineering, the basic design principles from the material properties and the technological aspects of their application, to the evaluation of the resistance of the structural elements (member and plates) under static, dynamic and fatigue loading conditions.