Pillar
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| Pillar | |
|---|---|
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| Name | Pillar |
| Type | Architectural element |
| Material | Stone, brick, wood, metal, concrete |
| Location | Worldwide |
Pillar
A pillar is a vertical architectural element used across cultures and eras as a support, monument, or decorative feature. Pillars appear in the built heritage of civilizations such as the Ancient Egypt, Classical Greece, Imperial Rome, Byzantine Empire, and the Mughal Empire, and in modern works by architects linked to movements like Beaux-Arts, Modernism, and Brutalism. Pillars combine structural engineering and artistic expression, featuring in constructions by designers associated with institutions like the École des Beaux-Arts, Royal Institute of British Architects, and firms such as Skidmore, Owings & Merrill.
Etymology
The term derives from Latin roots used in texts by authors such as Vitruvius and appears in medieval treatises circulating through centers like Florence and Paris. Renaissance scholars such as Andrea Palladio and Giorgio Vasari revived classical terms found in treatises connected to Pope Julius II patronage and the intellectual networks of Humanism. Terminology evolved in technical manuals produced by guilds in Flanders and Venice, influencing vocabulary used in commissions from patrons like Cosimo de' Medici and rulers of the Ottoman Empire.
Types and Forms
Pillars take multiple formal types recognized since antiquity: monolithic columns associated with monuments such as those commissioned by Ramses II; engaged columns used in façades like those in Roman Forum structures; and clustered columns frequent in Gothic architecture exemplified by cathedrals in Chartres Cathedral and Notre-Dame de Paris. Variations include freestanding pillars, stelae akin to memorials from Akkadian Empire contexts, and composite piers seen in Byzantine architecture at sites like Hagia Sophia. Later typologies include cast-iron columns of the Industrial Revolution era in cities such as Manchester and Liverpool, and reinforced-concrete piles and columns in 20th-century projects by architects like Le Corbusier, Louis Kahn, and firms such as Perkins and Will.
Materials and Construction
Materials span natural stone types quarried from regions like Carrara and Pentelic, timbers from forests in Scandinavia and the Black Sea region, and metals such as cast iron produced in foundries associated with the Industrial Revolution in Birmingham and Pittsburgh. Concrete formulations advanced in studies by engineers like John Smeaton and innovators such as Auguste Perret and Gustave Eiffel, enabling reinforced concrete reinforced by steel from producers in Ruhr industrial complexes. Construction techniques reference mason guild methods recorded in archives of Guild of St George and modern engineering standards promulgated by organizations like the American Society of Civil Engineers.
Architectural Functions and Structural Role
Pillars transmit loads from beams, arches, and vaults into foundations, playing critical roles in structures ranging from the hypostyle halls of Luxor Temple to the colonnades of the Pantheon, Rome. In bridge design, piers serve as intermediate supports as in works by engineers such as Isambard Kingdom Brunel and Gustave Eiffel for crossings over rivers like the Thames and the Seine. In skyscraper construction, columns form vertical structural grids developed in projects by builders like Skidmore, Owings & Merrill and by architects including Mies van der Rohe and Frank Lloyd Wright to resist axial and lateral loads, complying with codes influenced by events such as the Great Chicago Fire.
Decorative and Symbolic Uses
Pillars function as symbolic devices in monumental contexts: victory columns commemorating leaders like Trajan and events such as the Battle of Waterloo; funerary shafts in traditions linked to dynasties like the Qin Dynasty; and ceremonial columns in palace complexes of Mughal Empire patrons such as Shah Jahan. Ornamentation includes capitals following orders named in treatises by Vitruvius—Doric, Ionic, Corinthian—adapted in Renaissance works by Donato Bramante and in Neoclassical projects by architects like Robert Adam. Sculptors and artisans from workshops patronized by courts such as the Habsburg Monarchy and institutions like the British Museum have used pillars to convey narratives, heraldry, and ideological programs.
Historical Development and Notable Examples
Ancient examples include the hypostyle halls of Karnak and the cedar columns recorded in inscriptions of Ugarit. Classical instances are the peristyles of the Parthenon and the columns of the Temple of Saturn in Rome. Medieval development features clustered piers in Chartres Cathedral and compound piers in Durham Cathedral, while Islamic architecture produced iconic columns in the Great Mosque of Cordoba and iwans of the Shah Mosque. Early modern innovations are visible in the columned façades of St Peter's Basilica and the colonnade of St. Peter's Square designed under papal patronage. Industrial-era cast-iron columns appear in warehouses in Liverpool and train sheds like those at St Pancras railway station. Modern and contemporary masterpieces include the reinforced concrete pylons of projects such as the works by Le Corbusier and skyscraper columns in buildings like the Seagram Building.
Conservation and Preservation Methods
Preservation methods reference conservation charters and institutions such as the International Council on Monuments and Sites and practices advocated by specialists trained at universities like University College London and Columbia University. Techniques include material analysis using methods developed in laboratories at museums such as the Victoria and Albert Museum, consolidation of stone with compatible mortars referenced in guidelines from the Getty Conservation Institute, corrosion protection for metal columns informed by studies from technical bodies like ASTM International, and seismic retrofitting strategies applied to heritage sites in seismic zones like Italy and Japan following research by engineering centers such as Massachusetts Institute of Technology.