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Side door at Wimpole Hall, Cambridgeshire, by James Gibbs. A Gibbs surround or Gibbs Surround is a type of architectural frame surrounding a door, window or niche in the tradition of classical architecture otherwise known as a rusticated doorway or window. The formula is not fixed, but several of the following elements will be found.
A common form of doorway in Italy had shaped corbels projecting inward to support a stone transom, above which rose an open arch. This form continued into the Gothic period and evolved into the fanlight The simplest window were narrow and round-topped. Windows into important rooms were often paired arched openings, divided by a colonnette or ...
The arches used in Romanesque architecture are nearly always semicircular, for openings such as doors and windows, for vaults and for arcades. Wide doorways are usually surmounted by a semi-circular arch, except where a door with a lintel is set into a large arched recess and surmounted by a semi-circular "lunette" with decorative carving. [26]
The rise (height) of a round arch is limited to 1 ⁄ 2 of its span, [7] so it looks more "grounded" than a parabolic arch [3] or a pointed arch. [7] Whenever a higher semicircular arch was required (for example, for a narrow arch to match the height of a nearby broad one), either stilting or horseshoe shape were used, thus creating a stilted arch and horseshoe arch respectively. [8]
The Federal style is found in the building's large windows, the elliptical doorway arch, the bowed two story front bay, and the brickwork. The Greek Revival style is found in the offset doorway. Its interior features a unique open, two-story, self-supporting staircase that is said to be one of seven in existence in the United States. [2]
Construction of a four-centred arch. A four-centred arch (Commonwealth spelling) or four-centered arch (American spelling) is a low, wide type of arch with a pointed apex.Its structure is achieved by drafting two arcs which rise steeply from each springing point on a small radius, and then turning into two arches with a wide radius and much lower springing point.
The Norman arch is a defining point of Norman architecture. Grand archways are designed to evoke feelings of awe and are very commonly seen as the entrance to large religious buildings such as cathedrals. Norman arches are semicircular in form. Early examples have plain, square edges; later ones are often enriched with the zig-zag and roll ...
Multifoil arch in the Aljafería, Zaragoza, Spain. A multifoil arch (or polyfoil arch), also known as a cusped arch, [1] [2] polylobed arch, [3] [4] or scalloped arch, [5] is an arch characterized by multiple circular arcs or leaf shapes (called foils, lobes, or cusps) that are cut into its interior profile or intrados.