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A stair flight is a run of stairs or steps between landings. A stairwell is a compartment extending vertically through a building in which stairs are placed. A stair hall is the stairs, landings, hallways, or other portions of the public hall through which it is necessary to pass when going from the entrance floor to the other floors of a building.
The concept of stairs is believed to be 8000 years old, and are one of the oldest buildings in architectural history. [4] The oldest example of spiral stairs dates back to the 400s BC. [5] Medieval architecture saw experimentation with many different shapes, and the Renaissance even more so with varied designs. [5]
The Escalier Daru is the last in a series of increasingly monumental staircases built to serve this area of the Louvre building. In 1722, as the old Queen Mother's apartment on the ground floor of the Petite Galerie was being prepared to be the residence of Mariana Victoria of Spain the betrothed of Louis XV, [3] a staircase was built to lead directly into the Salon Carré on the upper level ...
By creating an air lock entry, vestibules reduce infiltration losses or gains caused by wind. Designers of commercial buildings must install a vestibule between the main entry doors leading to spaces that are greater than or equal to 3,000 square feet (280 m 2). One other requirement of the design is that it is not necessary for both sets of ...
The Potemkin Stairs in Odesa, Ukraine. In architecture, a perron generally refers to an external stairway to a building. Curl notes three more-specific usages: the platform-landing reached by symmetrical flights of steps leading to the piano nobile of a building; the steps themselves; or the platform base of edifices like a market cross. [1]
McKim relocated the new Grand Staircase in the eastern end of the Cross Hall, opposite the entrance to the Green Room in the site of Hoban's less formal east staircase. McKim's Grand Staircase adopted the Imperial stair form: a central run beginning on the south and rising to a landing on the north, with double runs doubling back to the south ...