Vestiti d’alta moda, ossature prêt-à-porter: trends strutturali per il grattacielo contemporaneo (Haute Couture claddings, prêt-à-porter structures: new structural trends for the contemporary skyscraper)

According with 2011 report of the Council on Tall Buildings and Urban Habitat, high-rises buildings developments have been rapidly increasing worldwide. Presenting the impossibility to compile a new classification for the primary structural system, this paper reviews the evolution of tall-building’s structural systems. While most representative structural system are discussed, the emphasis in this review paper is on current trends such as outrigger systems and diagrid structures. Learning from the past, it is also proposed the evolution of these two systems of truss force diagram, analyzing masterpieces of Fazlur R. Khan and Pier Luigi Nervi.