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In classical architecture, the shape of the abacus and its edge profile varies in the different classical orders. In the Greek Doric order, the abacus is a plain square slab without mouldings, supported on an echinus. [2] In the Roman and Renaissance Doric orders, it is crowned by a moulding (known as "crown moulding").
The Marshall Building, formerly known as the Hoffman & Sons Co. Building, is a historic building in Milwaukee, Wisconsin, United States.Part of the Historic Third Ward, the six-story building is the oldest existing example of structural engineer Claude A. P. Turner's Spiral Mushroom System of flat-slab concrete reinforcement.
A concrete slab is a common structural element of modern buildings, consisting of a flat, horizontal surface made of cast concrete. Steel- reinforced slabs, typically between 100 and 500 mm thick, are most often used to construct floors and ceilings, while thinner mud slabs may be used for exterior paving ( see below ).
A curved structure capable of spanning a space while supporting significant weight. Architrave A formalized lintel, the lowest member of the classical entablature. Also the moulded frame of a door or window (often borrowing the profile of a classical architrave). Area or basement area
From prehistoric times there have been examples of graves covered with a stone slab, in its natural state or carved. This use of slabs as tombstone has extended the concept of natural slab to the tombstone variant: flat, thin and polished. An instance is the slab in the tomb of King Pere el Gran of Aragon, which weighs 900 kg. [8]
A waffle slab is flat on top, while joists create a grid like surface on the bottom. The grid is formed by the removal of molds after the concrete sets. This structure was designed to be more solid when used on longer spans and with heavier loads. [3]
Base of 30 St Mary Axe, London, UK The world's first diagrid hyperboloid structure in Polibino, Russia MyZeil, Frankfurt, Germany CCTV Headquarters, Beijing, China. A diagrid (a portmanteau of diagonal grid) is a framework of diagonally intersecting metal, concrete, or wooden beams that is used in the construction of buildings and roofs. [1]
A slab hut is actually a 'slab-walled' structure. Its walls were, strictly speaking, built from 'flitches'. Slabs are sawn from a trunk, flitches are split from it. [n. 6] Hut-builders felled selected trees, [n. 7] and sawed the trunks into suitable lengths. [n. 8] They then split these lengths into flitches using a maul and a wedge.