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The exterior of the reinforced-concrete building is faced with multicolored red brick set in a Flemish-bond pattern, with a limestone base and ornamental detail. The entrance doors, of stained oak with bronze hardware, are recessed within the arch on the west elevation. A large window fills the arch above the doors. [3]
The most common form of the Gothic pointed arch in windows and arches was based upon an equilateral triangle, in which the three sides have an equal length (the span of the arch is equal to the arc radii). This so called equilateral arch had the great advantage of simplicity. Stone cutters, or hewers, could precisely draw the arc on the stone ...
by the material used (stone, brick, concrete, steel) and construction approach. [26] For example, the wedge-shaped voussoirs of a brick arch can be made by cutting the regular bricks ("axed brick" arch) or manufactured in the wedge shape ("gauged brick" arch); [28] structurally, by the number of hinges (movable joints) between solid components ...
Mayan corbel arches are also sometimes called triangular due to their shape. [7] Since the sides of a triangular arch are experiencing bending stress, it is a false arch [3] in a structural sense (historically preceding the invention of true arches [8] and going back to Neolithic times [9]).
The Flamboyant Arch is drafted from four points, the upper part of each main arc turning upwards into a smaller arc and meeting at a sharp, flame-like point. [dubious – discuss] These arches create a rich and lively effect when used for window tracery and surface decoration. The form is structurally weak and has very rarely been used for ...
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A corbel arch is constructed by offsetting successive horizontal courses of stone (or brick) beginning at the springline of the walls (the point at which the walls break off from verticality to form an arc toward the apex at the archway's center) so that they project towards the archway's center from each supporting side, until the courses meet ...
A "face brick" is a higher-quality brick, designed for use in visible external surfaces in face-work, as opposed to a "filler brick" for internal parts of the wall, or where the surface is to be covered with stucco or a similar coating, or where the filler bricks will be concealed by other bricks (in structures more than two bricks thick).