![]() ![]() Each arch is generated with the method of the “Quinto acuto” as follows: the diameter is divided into five equal parts, making six division points. This polygon shapes the dome in eight sectors, joined by arch edges. The intrados side of the octagon is about 17 m. The dome sits on a vertical wall called “drum”, which is, in this case, an octagon with an oculus (window) on each side. ![]() Also, the lantern above the central top opening is 16 m high. It has, they say, 40 000 tons of bricks, on a stone masonry base about 4 m high. Thus, Brunelleschi’s dome has an internal diameter of 44m and is 32 m tall, while the base is 52m high above the ground (this is like a ten-story house on top of a 17 one). The biggest the church, the biggest the crossing (junction of the four arms of a cruciform cross-shaped space), and the diameter of the domes covering them. The cities of Florence, Pisa, and Siena were competing to build the largest cathedral, a symbol of wealth and power. What is known so far of this structure? Geometry ![]() He is buried in the church.įrom that moment, many have studied and theorized about how he managed to build it, and even an Italian professor has dedicated his life to replicating the dome (see references). He died on April 15, 1446, leaving no plans or writings of this great project. Still, Filippo quickly took over the leadership and has gone down in history as the builder of the dome of the Florence Cathedral. One of the others was Lorenzo Ghiberti, a former Brunneleschi’s rival. In April 1420, they gave him and two other candidates the work. Even though the Committee was very skeptical, Brunelleschi managed to convince its members. This is when a renewed Filippo Brunelleschi, an ambitious 41-year-old goldsmith, appears with a self-supporting dome solution. In 1418, building the dome seemed to be impossible, so competition for ideas was opened. It meant the transition from the Gothic to the Renaissance style, witnessing over all those construction years the change in the way of building. The church is currently the fourth in the world by size after Saint Peter’s Basilica in Rome, Saint Paul’s Cathedral in London, and the Duomo of Milan. The name of the cathedral, Santa Maria del Fiore, combines that of the Virgin Mary with the symbol of the city of Florence, the Flower of Lis. The construction of Santa Maria del Fiore Cathedral began in the 1290s, but the spectacular dome was built between 14, almost two centuries later. ![]()
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