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Buttress
A buttress is an architectural structure built against or projecting from a wall which serves to support or reinforce the wall. Buttresses are fairly common on more ancient (typically Gothic) buildings, as a means of providing support to act against the lateral (sideways) forces arising out of inadequately braced roof structures. The term ''counterfort'' can be synonymous with buttress and is often used when referring to dams, retaining walls and other structures holding back earth. Early examples of buttresses are found on the Eanna Temple (ancient Uruk), dating to as early as the 4th millennium BC. Terminology In addition to flying and ordinary buttresses, brick and masonry buttresses that support wall corners can be classified according to their ground plan. A clasping or clamped buttress has an L-shaped ground plan surrounding the corner, an angled buttress has two buttresses meeting at the corner, a setback buttress is similar to an angled buttress but the buttresses ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flying Buttress
The flying buttress (''arc-boutant'', arch buttress) is a specific form of buttress composed of a ramping arch that extends from the upper portion of a wall to a pier of great mass, to convey to the ground the lateral forces that push a wall outwards, which are forces that arise from vaulted ceilings of stone and from wind-loading on roofs. The namesake and defining feature of a flying buttress is that it is not in contact with the wall at ground level, unlike a traditional buttress, and transmits the lateral forces across the span of intervening space between the wall and the pier. To provide lateral support, flying-buttress systems are composed of two parts: (i) a massive pier, a vertical block of masonry situated away from the building wall, and (ii) an arch that bridges the span between the pier and the wall – either a segmental arch or a quadrant arch – the ''flyer'' of the flying buttress. History As a lateral-support system, the flying buttress was developed duri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gothic Architecture
Gothic architecture is an architectural style that was prevalent in Europe from the late 12th to the 16th century, during the High Middle Ages, High and Late Middle Ages, surviving into the 17th and 18th centuries in some areas. It evolved from Romanesque architecture and was succeeded by Renaissance architecture. It originated in the Île-de-France and Picardy regions of northern France. The style at the time was sometimes known as ''opus Francigenum'' (); the term ''Gothic'' was first applied contemptuously during the later Renaissance, by those ambitious to revive the Classical architecture, architecture of classical antiquity. The defining design element of Gothic architecture is the Pointed arch (architecture), pointed arch. The use of the pointed arch in turn led to the development of the pointed rib vault and flying buttresses, combined with elaborate tracery and stained glass windows. At the Abbey of Basilica of Saint-Denis, Saint-Denis, near Paris, the choir was rec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paoay Church
Saint Augustine Parish Church, commonly known as Paoay Church, is a Roman Catholic church in the municipality of Paoay, Ilocos Norte in the Philippines. It is under the ecclesiastical jurisdiction of the Diocese of Laoag. Completed in 1710, the church is famous for its distinctive architecture, a highlight of which are the enormous buttresses on the sides and the back of the building. It is declared as a National Cultural Treasure by the Philippine government in 1973 and a UNESCO World Heritage Site under the collective group of Baroque Churches of the Philippines in 1993. History The earliest historical record of the area dates back to 1593, becoming an independent Augustinian parish by 1686. The construction of the present church was started in 1694 by Augustinian friar Father Antonio Estavillo and was completed in 1710. It was later on rededicated in 1896. Some portions of the church were damaged in the 1865 and 1885 earthquakes but was later restored under the initia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strainer Arch
A strainer arch (also straining arch) is an internal structural arch built to relieve the inward pressure off the spanned vertical supports (providing a "buttress", thus also called buttressing arches), usually as an afterthought to prevent the supports from imploding due to miscalculation. In the past they were frequently adorned with decoration, with one of the best examples provided by Wells Cathedral. Strainer arches can be " inverted" (upside-down) while remaining structural. The typical construction of Romanesque and Gothic churches includes east-to-west arcades, where each arch is buttressed by its neighbours. The issue at the east end is resolved using the buttressing of an apse to the choir, while at the west end a massive "westwork" is used. In a large church a similar problem occurs at the crossing, where the arcades of the nave and choir have to terminate. A "spectacular" solution for the crossing buttressing issue at Wells Cathedral was found by William Joy (133 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mosque Of Uqba
The Great Mosque of Kairouan (), also known as the Mosque of Uqba (), is a mosque situated in the UNESCO World Heritage town of Kairouan, Tunisia and is one of the largest Islamic monuments in North Africa. Established by the Arab general Uqba ibn Nafi in the year 50 AH (670 C.E.) at the founding of the city of Kairouan, the mosque occupies an area of over . It is one of the oldest places of worship in the Islamic world, and is a model for all later mosques in the Maghreb.''Great Mosque of Kairouan'' (discoverislamicart.org) Its perimeter, of about , contains a prayer hall, a marble-paved courtyard and a square minaret. In additi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earthquake Baroque
Earthquake Baroque, or Seismic Baroque, is a style of Baroque architecture found in the Philippines and in Guatemala, which were Spanish-ruled territories that suffered destructive earthquakes during the 17th and the 18th centuries. Large public buildings, such as churches, were then rebuilt in a Baroque style during the Spanish colonial periods in those countries. Similar events led to the Pombaline architecture in Lisbon following the 1755 Lisbon earthquake and Sicilian Baroque in Sicily following the 1693 earthquake. Characteristics In the Spanish East Indies, destruction of earlier churches from frequent earthquakes have made the church proportion lower and wider; side walls were made thicker and heavily buttressed for stability during shaking. The upper structures were made with lighter materials. Instead of lighter materials thinner walls were introduced by progressively decreasing in thickness to the topmost levels. Bell towers are usually lower and stouter compared ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cathedral Architecture
Cathedrals, collegiate churches, and monastic churches like those of abbeys and priories, often have certain complex structural forms that are found less often in parish churches. They also tend to display a higher level of contemporary architectural style and the work of accomplished craftsmen, and occupy a status both ecclesiastical and social that an ordinary parish church rarely has. Such churches are generally among the finest buildings locally and a source of regional pride. Many are among the world's most renowned works of architecture. These include St Peter's Basilica, Notre-Dame de Paris, Cologne Cathedral, Salisbury Cathedral, Antwerp Cathedral, Prague Cathedral, Lincoln Cathedral, the Basilica of Saint-Denis, Santa Maria Maggiore, the Basilica of San Vitale, St Mark's Basilica, Westminster Abbey, Saint Basil's Cathedral, Antoni Gaudí's incomplete Sagrada Família and the ancient cathedral of Hagia Sophia in Istanbul, now a mosque. The earliest large churches d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uruk
Uruk, the archeological site known today as Warka, was an ancient city in the Near East, located east of the current bed of the Euphrates River, on an ancient, now-dried channel of the river in Muthanna Governorate, Iraq. The site lies 93 kilometers (58 miles) northwest of ancient Ur, 108 kilometers (67 miles) southeast of ancient Nippur, and 24 kilometers (15 miles) northwest of ancient Larsa. It is east of modern Samawah. Uruk is the type site for the Uruk period. Uruk played a leading role in the early urbanization of Sumer in the mid-4th millennium BC. By the final phase of the Uruk period around 3100 BC, the city may have had 40,000 residents, with 80,000–90,000 people living in its environs, making it the largest urban area in the world at the time. Gilgamesh, according to the chronology presented in the '' Sumerian King List'' (''SKL''), ruled Uruk in the 27th century BC. After the end of the Early Dynastic period, with the rise of the Akkadian Empire, the ci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Retaining Wall
Retaining walls are relatively rigid walls used for supporting soil laterally so that it can be retained at different levels on the two sides. Retaining walls are structures designed to restrain soil to a slope that it would not naturally keep to (typically a steep, near-vertical or vertical slope). They are used to bound soils between two different elevations often in areas of inconveniently steep terrain in areas where the landscape needs to be shaped severely and engineered for more specific purposes like hillside farming or roadway overpasses. A retaining wall that retains soil on the backside and water on the frontside is called a seawall or a bulkhead. Definition A retaining wall is designed to hold in place a mass of earth or the like, such as the edge of a terrace or excavation. The structure is constructed to resist the lateral pressure of soil when there is a desired change in ground elevation that exceeds the angle of repose of the soil. A basement wall is thus one k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Milan Cathedral
Milan Cathedral ( ; ), or Metropolitan Cathedral-Basilica of the Nativity of Saint Mary (), is the cathedral church of Milan, Lombardy, Italy. Dedicated to the Nativity of Mary, Nativity of St. Mary (), it is the seat of the Roman Catholic Archdiocese of Milan, Archbishop of Milan, currently Archbishop Mario Delpini. The cathedral took nearly six centuries to complete: construction began in 1386, and the final details were completed in 1965. It is the largest church in the Italian Republic—the larger St. Peter's Basilica is in the State of Vatican City, a sovereign state—and one of largest in the world. History Milan's layout, with streets either radiating from the Duomo or circling it, reveals that the Duomo occupies what was the most central site in Mediolanum, Roman Mediolanum, that of the public basilica facing the Forum (Roman), forum. The Santa Tecla, Milan, first cathedral, the "new basilica" (') dedicated to Saint Thecla, St Thecla, was completed by 355. It seem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centralia Mine Fire
The Centralia mine fire is a coal-seam fire that has been burning in the labyrinth of abandoned Coal mining, coal mines underneath the Borough (Pennsylvania), borough of Centralia, Pennsylvania, United States, since at least May 27, 1962. Its original cause and start date are still a matter of debate. It is burning at depths of up to over an stretch of . At its current rate, it could continue to burn for over 250 years. Due to the fire, Centralia was mostly abandoned in the 1980s. There were 1,500 residents at the time the fire is believed to have started, but as of 2017 Centralia has a population of 5 and most of the buildings have been Demolition, demolished. Background On May 7, 1962, the Centralia Council met to discuss the approaching Memorial Day and how the town would go about cleaning up the Centralia landfill, which was introduced earlier that year. The 300-foot-wide, 75-foot-long () pit was made up of a 50-foot-deep () strip mine that had been cleared by Edward Whitn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pilaster
In architecture, a pilaster is both a load-bearing section of thickened wall or column integrated into a wall, and a purely decorative element in classical architecture which gives the appearance of a supporting column and articulates an extent of wall. As an ornament it consists of a flat surface raised from the main wall surface, usually treated as though it were a column, with a capital at the top, plinth (base) at the bottom, and the various other column elements. In contrast to a Classical pilaster, an engaged column or buttress can support the structure of a wall and roof above. In human anatomy, a pilaster is a ridge that extends vertically across the femur, which is unique to modern humans. Its structural function is unclear. Definition A pilaster is foremost a load-bearing architectural element used widely throughout the world and its history where a structural load is carried by a thickened section of wall or column integrated into a wall. It is also a purel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
