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The Pont du Gard (c.19 BC), Nîmes; 3 rows of piers with arches springing from them to support the bridge. A pier, in architecture, is an upright support for a structure or superstructure such as an arch or bridge. Sections of structural walls between openings (bays) can function as piers.
A building's surface detailing, inside and outside, often includes decorative moulding, and these often contain ogee-shaped profiles—consisting (from low to high) of a concave arc flowing into a convex arc, with vertical ends; if the lower curve is convex and higher one concave, this is known as a Roman ogee, although frequently the terms are used interchangeably and for a variety of other ...
Masonry, being a material that does not perform well under tension, means that masonry bridges always take the form of a vault, the only form that satisfies this condition. A bridge consists of one or more arches resting on supports capable of resisting, without significant displacement, the mechanical action of the arch, known as shear.
Square-topped windows are often set in groups, with two or three beneath a single lintel. Round-topped windows are often paired under a wide arch, and separated by stone mullions or colonnettes. In Sicily there are a number of palaces and churches where the pointed arch is used during this period, apparently adopted from Islamic architecture.
Catenary arch - A vault may take the shape of an inverted catenary. Cloister vault – A dome-like vault having a square or polygonal base from which curved segments rise to a central point. Corbel vault – A concave formation of blocks, usually stone or masonry; the vault is formed by blocks as they project inward from the layer on which they ...
If you need a bit more space, these 9 types of home additions can expand your square footage, boost your home's value, and fit any budget. ... Garage Conversion. Cost Estimate: $6,000 to $30,000+
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A jack arch, and a jack arch with a relieving arch above, as illustrated in the Lexikon der gesamten Technik The Mardin jack arch, view from the crypt underneath. A jack arch is a structural element in masonry construction that provides support at openings in the masonry. Alternate names are lintel arch, [1] flat arch and straight arch.