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The helical stair is also called the spiral stair, winding stair, circular stair, elliptical stair, oval stair, geometric stair, vis, vice, vis de Saint Gilles, St. Gilles screw, belfry stair, turret stair, caracole, turnpike, cochlea, cockle, corkscrew, and ascensorium. Helical is possibly the least poetic but also the most accurate generic title.
The chapel was commissioned by the Sisters of Loretto for their girls' school, Loretto Academy, in 1873. Archbishop Jean-Baptiste Lamy had brought in two French architects, Antoine Mouly and his son Projectus, to work on the St. Francis Cathedral project, and suggested that the Sisters could make use of their services on the side to build a much-needed chapel for the academy. [4]
The spiral stair is a type of stairway which, due to its complex helical structure, has been introduced relatively late into architecture. Although the oldest example dates back to the 5th century BC, [ 1 ] it was only in the wake of the influential design of the Trajan's Column that this space-saving new type permanently caught hold in ancient ...
In the USA the main codes are the International Building Code or International Residential Code [IBC/IRC], electrical codes and plumbing, mechanical codes. Fifty states and the District of Columbia have adopted the I-Codes at the state or jurisdictional level. [4]
State agency regulations (sometimes called administrative law) are published in the Michigan Register and codified in the Michigan Administrative Code. Michigan's legal system is based on common law , which is interpreted by case law through the decisions of the Supreme Court and Court of Appeals, which are published in the Michigan Reports and ...
Stairways in the United States — outdoor staircases, a part of external pedestrian infrastructure in the U.S. Subcategories This category has only the following subcategory.
In 1849, the Alabama State Capitol burned, and King was hired to construct the framework of the new capitol building, as well as design and build the twin spiral entry staircases. King used his knowledge of bridge-building to cantilever the stairs' support beams so that the staircases appeared to "float" without any central support. [18]