PorticoA portico is a porch leading to the entrance of a building, or extended as a colonnade, with a roof structure over a walkway, supported by columns or enclosed by walls. This idea was widely used in ancient Greece and has influenced many cultures, including most Western cultures. Porticos are sometimes topped with pediments. Palladio was a pioneer of using temple-fronts for secular buildings. In the UK, the temple-front applied to The Vyne, Hampshire, was the first portico applied to an English country house.
CorniceIn architecture, a cornice (from the Italian cornice meaning "ledge") is generally any horizontal decorative moulding that crowns a building or furniture element—for example, the cornice over a door or window, around the top edge of a pedestal, or along the top of an interior wall. A simple cornice may be formed just with a crown, as in crown moulding atop an interior wall or above kitchen cabinets or a bookcase. A projecting cornice on a building has the function of throwing rainwater free of its walls.
EntasisIn architecture, entasis is the application of a convex curve to a surface for aesthetic purposes. Its best-known use is in certain orders of Classical columns that curve slightly as their diameter is decreased from the bottom upward. It also may serve an engineering function regarding strength. The word we apply to the design principle is used by the Roman architectural historian Vitruvius, and derives from the Greek word έντείνω (enteino), "to stretch or strain tight".
Fluting (architecture)Fluting in architecture consists of shallow grooves running along a surface. The term typically refers to the grooves (flutes) running vertically on a column shaft or a pilaster, but need not necessarily be restricted to those two applications. If the hollowing out of material meets in a point, the point (sharp ridge) is called an arris. If the raised ridge between two flutes is blunt, the ridge is a . Fluting promotes a play of light on a column which helps the column appear more perfectly round than a smooth column.
TriglyphTriglyph is an architectural term for the vertically channeled tablets of the Doric frieze in classical architecture, so called because of the angular channels in them. The rectangular recessed spaces between the triglyphs on a Doric frieze are called metopes. The raised spaces between the channels themselves (within a triglyph) are called femur in Latin or meros in Greek. In the strict tradition of classical architecture, a set of guttae, the six triangular "pegs" below, always go with a triglyph above (and vice versa), and the pair of features are only found in entablatures of buildings using the Doric order.
Composite orderThe Composite order is a mixed order, combining the volutes of the Ionic order capital with the acanthus leaves of the Corinthian order. In many versions the composite order volutes are larger, however, and there is generally some ornament placed centrally between the volutes. The column of the composite order is typically ten diameters high, though as with all the orders these details may be adjusted by the architect for particular buildings.
Acanthus (ornament)The acanthus (ἄκανθος) is one of the most common plant forms to make foliage ornament and decoration in the architectural tradition emanating from Greece and Rome. In architecture, an ornament may be carved into stone or wood to resemble leaves from the Mediterranean species of the Acanthus genus of plants, which have deeply cut leaves with some similarity to those of the thistle and poppy.
Giant orderIn classical architecture, a giant order, also known as colossal order, is an order whose columns or pilasters span two (or more) storeys. At the same time, smaller orders may feature in arcades or window and door framings within the storeys that are embraced by the giant order. The giant order as such was unknown to antiquity, although most ancient buildings using formal orders lacked upper storeys. To an extent buildings with giant orders resemble a Roman temple adapted for post-classical use, as many were (the survivors have now usually been stripped of later filling-in).
I quattro libri dell'architetturaI quattro libri dell'architettura (The Four Books of Architecture) is a treatise on architecture by the architect Andrea Palladio (1508–1580), written in Italian. It was first published in four volumes in 1570 in Venice, illustrated with woodcuts after the author's own drawings. It has been reprinted and translated many times, often in single-volume format. Book I was first published in English in 1663 in a London edition by Godfrey Richards. The first complete English language edition was published in London by the Italian-born architect Giacomo Leoni in 1715–1720.
Abacus (architecture)In architecture, an abacus (from the Greek abax, slab; or French abaque, tailloir; plural abacuses or abaci) is a flat slab forming the uppermost member or division of the capital of a column, above the bell. Its chief function is to provide a large supporting surface, tending to be wider than the capital, as an abutment to receive the weight of the arch or the architrave above. The diminutive of abacus, abaculus, is used to describe small mosaic tiles, also called abaciscus or tessera, used to create ornamental floors with detailed patterns of chequers or squares in a tessellated pavement.
