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Cantilever Examples
A cantilever is a rigid structural element that extends horizontally and is unsupported at one end. Typically it extends from a flat vertical surface such as a wall, to which it must be firmly attached. Like other structural elements, a cantilever can be formed as a beam, plate, truss, or slab. When subjected to a structural load at its far, unsupported end, the cantilever carries the load to the support where it applies a shear stress and a bending moment. Cantilever construction allows overhanging structures without additional support. In bridges, towers, and buildings Cantilevers are widely found in construction, notably in cantilever bridges and balconies (see corbel). In cantilever bridges, the cantilevers are usually built as pairs, with each cantilever used to support one end of a central section. The Forth Bridge in Scotland is an example of a cantilever truss bridge. A cantilever in a traditionally timber framed building is called a jetty or forebay. In the south ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania Barn
A Pennsylvania barn is a type of bank barn built in the United States from about 1790 to 1900. The style's most distinguishing feature is an overshoot or forebay, an area where one or more walls overshoot its foundation. These barns were banked and set into a hillside to ensure easy access to the basement and the level above. Almost all Pennsylvania barns also have gable roofs. Barn scholar Robert Ensminger classified the Pennsylvania barn into three types: Standard Pennsylvania, Sweitzer, and Extended Pennsylvania barns.Ensminger, Robert F. ''The Pennsylvania barn: its origin, evolution, and distribution in North America''. 2nd ed. Baltimore: Johns Hopkins University Press, 2003. The Pennsylvania-style barns were also built in the Shenandoah Valley, as well as west of Pennsylvania and in Canada. Standard Pennsylvania barn "The Standard Pennsylvania barn is the most numerous and widely distributed class of the Pennsylvania barns." These were built between 1790 and 1890. The key c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miami Stadium
Miami Stadium, later officially known as Bobby Maduro Miami Stadium, was a baseball stadium in Miami, Florida. It was primarily used as the home field of the Miami Marlins (International League), Miami Marlins minor league baseball team, as well as other minor league teams. It opened in 1949 and held 13,500 people. image:Miami Stadium, Miami, Florida (8006288023).jpg, left, View of the stadium in the 1950s The stadium was located on the block bounded by Northwest 23rd Street (south – first base), Northwest 10th Avenue (west – third base), and Northwest 8th Avenue (east – right field), with an open area behind left field extending about a block north. A distinguishing feature of the ballpark was a high arched cantilever-type roof over the grandstand, in contrast to the typical styles of either flat and slightly sloping, or peaked like a house. This design enabled the ballpark to have a roof that covered most of the seating area without any posts blocking the spectators' vie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Old Trafford
Old Trafford () is a football stadium in Old Trafford, Greater Manchester, England, and is the home of Manchester United. With a capacity of 74,197, it is the largest club football stadium (and second-largest football stadium overall after Wembley Stadium) in the United Kingdom, and the twelfth-largest in Europe. It is about from Old Trafford Cricket Ground and the adjacent tram stop. Nicknamed "The Theatre of Dreams" by Bobby Charlton, Old Trafford has been United's home ground since 1910, although from 1941 to 1949 the club shared Maine Road with local rivals Manchester City as a result of Second World War bomb damage. Old Trafford underwent several expansions in the 1990s and 2000s, including the addition of extra tiers to the North, West and East Stands, almost returning the stadium to its original capacity of 80,000. Should further expansion occur, it is likely to involve the addition of a second tier to the South Stand, which would raise the capacity to around 8 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roof
A roof (: roofs or rooves) is the top covering of a building, including all materials and constructions necessary to support it on the walls of the building or on uprights, providing protection against rain, snow, sunlight, extremes of temperature, and wind. A roof is part of the building envelope. The characteristics of a roof are dependent upon the purpose of the building that it covers, the available roofing materials and the local traditions of construction and wider concepts of architectural design and practice, and may also be governed by local or national legislation. In most countries, a roof protects primarily against rain. A verandah may be roofed with material that protects against sunlight but admits the other elements. The roof of a Conservatory (greenhouse), garden conservatory protects plants from cold, wind, and rain, but admits light. A roof may also provide additional living space, for example, a roof garden. Etymology Old English 'roof, ceiling, top, summ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elland Road
Elland Road, or Elland Road Stadium, is a football stadium in Beeston, Leeds, West Yorkshire, England, which has been the Home (sports), home of Leeds United F.C., Leeds United since the club's formation in 1919. The stadium is the List of football stadiums in England, 13th largest football stadium in England. The ground has hosted FA Cup FA Cup semi-finals, semi-final matches as a neutral venue, and England national football team, England international fixtures, and was selected as one of eight UEFA Euro 1996, Euro 96 venues. Elland Road was used as home ground by rugby league clubs Holbeck (pre-1905) and Hunslet R.L.F.C., Hunslet (in the 1980s and 90s) and has hosted numerous rugby league cup finals and semi-finals, internationals and other important matches. Elland Road has four stands – the Don Revie (North) Stand (also known as the kop), the Jack Charlton (East) Stand (which was once known as the Lowfields Road stand), the Norman Hunter (footballer), Norman Hunter South ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fallingwater
Fallingwater is a Historic house museum, house museum in Stewart Township, Pennsylvania, Stewart Township in the Laurel Highlands of Greater Pittsburgh, southwestern Pennsylvania, United States. Designed by the architect Frank Lloyd Wright, it is built partly over a waterfall on the Bear Run stream. The three-story residence was developed as a weekend retreat for Liliane and Edgar J. Kaufmann Sr., the owner of Kaufmann's Department Store in Pittsburgh. The Western Pennsylvania Conservancy (WPC), which has operated Fallingwater as a tourist attraction since 1963, maintains surrounding the house. Edgar Kaufmann Sr. had established a summer retreat at Bear Run for his employees by 1916. When employees stopped using the retreat, the Kaufmanns bought the site in July 1933 and hired Wright to design the house in 1934. Several structural issues arose during the house's construction, including cracked concrete and sagging terraces. The Kaufmanns began using the house in 1937 and hir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frank Lloyd Wright
Frank Lloyd Wright Sr. (June 8, 1867 – April 9, 1959) was an American architect, designer, writer, and educator. He designed List of Frank Lloyd Wright works, more than 1,000 structures over a creative period of 70 years. Wright played a key role in the architectural movements of the twentieth century, influencing architects worldwide through his works and mentoring hundreds of apprentices in his Taliesin Fellowship. Wright believed in designing in harmony with humanity and the environment, a philosophy he called ''organic architecture''. This philosophy was exemplified in ''Fallingwater'' (1935), which has been called "the best all-time work of American architecture". Wright was a pioneer of what came to be called the Prairie School movement of architecture and also developed the concept of the Usonian home within Broadacre City, his vision for urban planning in the United States. He also designed original and innovative offices, churches, schools, skyscrapers, hotels, museum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torque
In physics and mechanics, torque is the rotational analogue of linear force. It is also referred to as the moment of force (also abbreviated to moment). The symbol for torque is typically \boldsymbol\tau, the lowercase Greek letter ''tau''. When being referred to as moment of force, it is commonly denoted by . Just as a linear force is a push or a pull applied to a body, a torque can be thought of as a twist applied to an object with respect to a chosen point; for example, driving a screw uses torque to force it into an object, which is applied by the screwdriver rotating around its axis to the drives on the head. Historical terminology The term ''torque'' (from Latin , 'to twist') is said to have been suggested by James Thomson and appeared in print in April, 1884. Usage is attested the same year by Silvanus P. Thompson in the first edition of ''Dynamo-Electric Machinery''. Thompson describes his usage of the term as follows: Today, torque is referred to using d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Segmental Bridge
A segmental bridge is a bridge built in short sections (called segments), i.e., one piece at a time, as opposed to traditional methods that build a bridge in very large sections. The bridge is made of concrete that is either cast-in-place (constructed fully in its final location) or precast concrete (built at another location and then transported to their final location for placement in the full structure). These bridges are very economical for long spans (more than ), especially when access to the construction site is restricted. They are also chosen for their aesthetic appeal. History The first cantilevered segmental cast-in-place concrete bridge, built in 1930, was across Rio do Peixe in the state of Santa Catarina of Brazil. It was followed in 1951 by the prestressed concrete bridge across the Lahn River in , the first of many cantilevered bridges designed by . The first prestressed concrete bridge, assembled by several precast elements, was the across the river Marne i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cable-stayed Bridges
A cable-stayed bridge has one or more ''towers'' (or ''pylons''), from which cables support the bridge deck. A distinctive feature are the cables or stays, which run directly from the tower to the deck, normally forming a fan-like pattern or a series of parallel lines. This is in contrast to the modern suspension bridge, where the cables supporting the deck are suspended vertically from the main cable, anchored at both ends of the bridge and running between the towers. The cable-stayed bridge is optimal for spans longer than cantilever bridges and shorter than suspension bridges. This is the range within which cantilever bridges would rapidly grow heavier, and suspension bridge cabling would be more costly. Cable-stayed bridges found wide use in the late 19th century. Early examples, including the Brooklyn Bridge, often combined features from both the cable-stayed and suspension designs. Cable-stayed designs fell from favor in the early 20th century as larger gaps were br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Navajo Bridge
Navajo Bridge is the name of twin steel spandrel arch bridges that cross the Colorado River in the Grand Canyon National Park (near Lees Ferry) in northern Coconino County, Arizona, United States. The newer of the two spans carries vehicular traffic on U.S. Route 89A (US 89A) over Marble Canyon between Bitter Springs and Jacob Lake, allowing travel into a remote Arizona Strip region north of the Colorado River including the North Rim of Grand Canyon National Park. Prior to completion of the first Navajo Bridge, one of the only Colorado River crossings between Arizona and Utah was located about upstream from the bridge site, at the mouth of Glen Canyon where Lees Ferry service had operated since 1873. The ferry site had been chosen as the only relatively easy access to the river for both northbound and southbound travelers. By the 1920s, automobile traffic began using the ferry, though it was not considered a safe and reliable crossing due to adverse weather and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
