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(The genius of Filippo Brunelleschi and the construction of the dome of Santa Maria del Fiore). ISBN 978-88-8347-691-4. The book is the result of forty years of research on the secret technique with which Brunelleschi built the Dome of Santa Maria del Fiore in Florence.
The work on the dome (built 1420–1436), the lantern (built 1446–c. 1461) and the exedra (built 1439–1445) occupied most of the remainder of Brunelleschi's life. [40] Brunelleschi's success can be attributed to his technical and mathematical genius. [41] Brunelleschi used more than four million bricks in the construction of the octagonal dome.
The dome was completed up to the base of the lantern in May 1590, a few months before the death of Pope Sixtus V. The lantern and lead covering for the dome were completed later, with the brass orb and cross being raised in 1592. [34] The lantern is 17 meters high and the dome is 136.57 meters from the base to the top of the cross. [35]
Brunelleschi's dome, designed in 1418, follows the height and form mandated in 1367. [240] [246] The dome can be described as a cloister vault, with the eight ribs at the angles concentrating weight on the supporting piers. [241] The dome is 42 meters wide and made of two shells. [243] A stairway winds between them.
The Dome was designed by Filippo Brunelleschi. Giotto's Bell Tower: Standing adjacent the Basilica of Santa Maria del Fiore and the Baptistery of St. John, the tower is one of the showpieces of the Florentine Gothic architecture with its design by Giotto, its rich sculptural decorations and the poly-chrome marble encrustations.
Vasari began the work in 1572. Brunelleschi had anticipated that access would be needed to the interior surface of the dome by installing iron rings from which scaffolding could be hung. There were also small windows in the inner shell through which a painter could crawl out onto suspended platforms. [3]