Star-shaped and planterian vaults between Seventeenth and Eighteenth century in the entrance halls of Turin. From the contributions of the treatises, to the geometric modeling, to the survey of artifacts

Turin baroque palaces, at the end of the seventeenth century, develop a new type of representative hall with a single covering: a vaulted space, masonry structured, whose radiocentric star-shaped matrix evolves and changes, over a period of less than a century, in double axial orthogonal schemes, particularly through the work of Plantery. Star-shaped and planterian vaults are generated by a wide mail vault, that cover the entire hall, combined, through intersections and cuts, with secondary radiocentric vaults (in star-shaped vaults) or axial and angular vaults (in planterian vaults). The study of treatises and manuals bring out interesting considerations on formal conception and construction techniques of these vauls that are reflected in 3D digital modeling and survey.