The towers are linked to the office blocks on either side by bridges. The da Vinci connection with Chambord is derived from the artist's sketches of four flights nesting one into the other.1Ī modern example of a circular stair tower is Zublin-Haus (Gottfried Bohm) which is placed in a large glazed court (Figures 2.22a and 2.22b). Doubling the flights is arranged with the simple expedient of stacking one above the other on 90° turns, the storey heights of 5 700 mm permitting this solution. A plan light the double flight and the core of a plan that is over 42 m in depth. Bernini) (from Schuster, F, Treppen, Hoffman Verlag, 1949). Perspective stairs leading to Sainsbury wing entranceįigure 2.15a Scala regia at the Vatican, 1661 (G. The practical purpose is toįigure 2.16 Sainsbury Wing, National Gallery, London (Venturi) Another visual advantage at Chambord is the celebration of the cylindrical shape above the roof level where a domed lantern of Italian proportions towers over the giant chimney stacks. The magnificent stonework forms the central feature of the cruciform plan and makes a complete contrast to the Palladian ideas of hiding away internal stairs. The double circular stairs enable the royal path to be separate from the rest (Figures 2.21a and 2.21b),įigure 2.14c Royal Festival Hall, London: Stairs in relation to receptionįigure 2.14d Royal Festival Hall, London: Stairs in relation to foyer but at the same time the open nature of the balustrade allows the courtiers to admire royalty as they pass. It is said to have been influenced by Leonardo da Vinci.įigure 2.14a Royal Festival Hall, London, 1951 (Sir Leslie Martin and Sir Robert Matthew): Key plan, foyer Figure 2.14b Royal Festival Hall, London: Key plan, stallsĪ more ingenious solution inspired by the same artist connects the royal apartments at Chambord. This is the explanation for the complex masonry construction at Blois (Figure 2.20) and which is built as a twin arcade to support the spiralling steps. Some of the more ambitious designs permit horse and rider to ride up to the upper floors. The primitive spiral is found in medieval castle towers where the stone steps rest one on top of another with the edges built into the surrounding walls.Ĭylindrical stairs have been made as free-standing towers placed outside the building envelope. Some of the most graceful forms of stair are the cylindrical and spiral.
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