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Lattice Girder
A lattice girder is a truss girder where the load is carried by a web of latticed metal. Overview The lattice girder was used prior to the development of larger rolled steel plates. It has been supplanted in modern construction with welded or bolted plate girders, which use more material but have lower fabrication and maintenance costs. The term is also sometimes used to refer to a laced strut or laced tie, structural members commonly made using a combination of structural sections connected with diagonal lacing. This form allows a strut to resist axial compression and a (tie) to resist axial tension. A lattice girder, like any girder, primarily resists bending. The component sections may typically include metal beams, channel and angle sections, with the lacing elements either metal plate strips, or angle sections. The lacing elements are typically attached using either hot rivets or threaded locator bolts. As with lattice girders, laced struts and ties have generally b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Darcy Lever - Geograph
Darcy, Darci or Darcey may refer to: Science * Darcy's law, which describes the flow of a fluid through porous material * Darcy (unit), a unit of permeability of fluids in porous material * Darcy friction factor in the field of fluid mechanics * Darcy–Weisbach equation used in hydraulics for calculation of the head loss due to friction People * Darcy (surname), a surname (including a list of people with the name) Men * Darcy Blake (born 1988), Welsh footballer * Darcy Dallas (born 1972), Canadian ice hockey defenceman * Darcy Daniher (born 1989), Australian rules footballer * Darci Frigo, Brazilian activist * Darcy Furber, Canadian politician * Darcy Gardiner (born 1995), Australian rules footballer * Darcy Hordichuk (born 1980), professional ice hockey player * Darcy Kuemper (born 1990), professional ice hockey player * Darcy Lang (born 1995), Australian rules footballer * Darcy Lear (1898–1967), Australian rules footballer * Darcy Lussick (born 1989), Australian rugby l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dowery Dell
Dowery Dell, between Rubery and Halesowen in Worcestershire, was a , nine span lattice steel, single-track railway viaduct that carried the Halesowen to Longbridge railway. A 10 mph speed limit was in operation. The line opened in 1883. Trains ran until 1964 and the viaduct was dismantled in 1965. Similar structures The viaduct was remarkable in being a rare example of a lattice girder supported on trestles, a combination of which there may have been only one other example in Britain, at Bennerley Viaduct (extant), though in that instance the trestles are not as high. On other well-known trestle-supported viaducts, such as Meldon, Belah, and Crumlin, the superstructure is not a lattice, being typically a Warren truss; and other lattice girders are low structures supported typically on iron caissons, such as Kew Railway Bridge Kew Railway Bridge spans the River Thames in London, England, between Kew and Strand-on-the-Green, Chiswick. The bridge was opened in 1869. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Girders
A girder () is a support beam used in construction. It is the main horizontal support of a structure which supports smaller beams. Girders often have an I-beam cross section composed of two load-bearing ''flanges'' separated by a stabilizing ''web'', but may also have a box shape, Z shape, or other forms. Girders are commonly used to build bridges. A girt is a vertically aligned girder placed to resist shear loads. Small steel girders are rolled into shape. Larger girders (1 m/3 feet deep or more) are made as plate girders, welded or bolted together from separate pieces of steel plate. The Warren type girder replaces the solid web with an open latticework truss between the flanges. This arrangement combines strength with economy of materials, minimizing weight and thereby reducing loads and expense. Patented in 1848 by its designers James Warren and Willoughby Theobald Monzani, its structure consists of longitudinal members joined only by angled cross-members, form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lattice Truss Bridge
A lattice bridge is a form of truss bridge that uses many small, closely spaced diagonal elements forming a lattice. The lattice Truss Bridge was patented in 1820 by architect Ithiel Town. Originally a design to allow a substantial bridge to be made from planks employing lower–skilled labor, rather than heavy timbers and more expensive carpenters, this type of bridge has also been constructed using many relatively light iron or steel members. The individual elements are more easily handled by the construction workers, but the bridge also requires substantial support during construction. A simple lattice truss will transform the applied loads into a thrust, as the bridge will tend to change length under load. This is resisted by pinning the lattice members to the top and bottom chords, which are more substantial than the lattice members, but which may also be fabricated from relatively small elements rather than large beams. Belfast truss The ''Belfast truss'' is a cross betw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hares Hill Road Bridge
The Hares Hill Road Bridge is a single-span, wrought iron, bowstring-shaped lattice girder bridge. It was built in 1869 by Moseley Iron Bridge and Roof Company and is the only known surviving example of this kind. The bridge spans French Creek, a Pennsylvania Scenic River. Description The Hares Hill Road Bridge superstructure consists of one wrought-iron lattice girder span. The ends are supported on stone masonry abutments built by Abraham Taney Jr., also in 1869. The bridge has been extensively rehabilitated several times, one of which added the current open grid steel deck. This is a single-lane bridge. The structure is listed in the National Register of Historic Places and has a high degree of historical and technological significance: it is the only known surviving example of Thomas William Moseley’s patented "Wrought Iron Lattice Girder Bridge." The bridge has been recorded by the Historic American Engineering Record (HAER) with detailed drawings, photographs, and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicago "L"
The Chicago "L" (short for "elevated") is the rapid transit system serving the city of Chicago and some of its surrounding suburbs in the U.S. state of Illinois. Operated by the Chicago Transit Authority (CTA), it is the fourth-largest rapid transit system in the United States in terms of total route length, at long as of 2014, and the second-busiest rail mass transit system in the United States, after the New York City Subway. In 2016, the "L" had 1,492 rail cars, eight different routes, and 145 train stations. In , the system had rides, or about per weekday in . The "L" provides 24-hour service on the Red and Blue Lines and is one of only five rapid transit systems in the United States to do so.The four other rapid transit systems in the U.S. that provide 24-hour service in at least some parts of their systems are the New York City Subway, Staten Island Railway, PATH, and PATCO Speedline. The oldest sections of the "L" started operations in 1892, making it the second-olde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Fear Memorial Bridge
The Cape Fear Memorial Bridge is a steel vertical-lift bridge in North Carolina, USA. It carries US 17/ US 76/ US 421 across the Cape Fear River between Brunswick County and New Hanover County. It also carried U.S. Route 74 until that designation was shifted to the Isabel S. Holmes Bridge. It has a lift span that can be raised . The lift span is long. History Construction on the bridge began in 1967 and was completed in 1969. The new bridge included a causeway at both ends and an overpass at the west side of the bridge. Since it opened, it has been the only connection on the south side of downtown Wilmington. A ferry system originally operated from the foot of Market Street to Peter Point. The design of the bridge is a two tower structure with a lift span that is 60 feet above the river, and can be raised to 135 feet to accommodate passing ships. The NC state port of Wilmington is to the south and downtown Wilmington is north of the bridge. The bridge receive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Statue Of Liberty
The Statue of Liberty (''Liberty Enlightening the World''; French: ''La Liberté éclairant le monde'') is a List of colossal sculpture in situ, colossal neoclassical sculpture on Liberty Island in New York Harbor in New York City, in the United States. The copper statue, a gift from the people of France, was designed by French sculptor Frédéric Auguste Bartholdi and its metal framework was built by Gustave Eiffel. The statue was dedicated on October 28, 1886. The statue is a figure of Libertas, a robed Roman liberty goddess. She holds a torch above her head with her right hand, and in her left hand carries a ''tabula ansata'' inscribed JULY IV MDCCLXXVI (July 4, 1776 in Roman numerals), the date of the United States Declaration of Independence, U.S. Declaration of Independence. A broken shackle and chain lie at her feet as she walks forward, commemorating the recent national abolition of slavery. After its dedication, the statue became an icon of freedom and of the United ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Francisco–Oakland Bay Bridge
The San Francisco–Oakland Bay Bridge, known locally as the Bay Bridge, is a complex of bridges spanning San Francisco Bay in California. As part of Interstate 80 in California, Interstate 80 and the direct road between San Francisco and Oakland, California, Oakland, it carries about 260,000 vehicles a day on its two decks. It has one of the List of longest suspension bridge spans, longest spans in the United States. The toll bridge was conceived as early as the California Gold Rush days, with "Emperor" Joshua Norton famously advocating for it, but construction did not begin until 1933. Designed by Charles H. Purcell, and built by American Bridge Company, it opened on Thursday, November 12, 1936, six months before the Golden Gate Bridge. It originally carried automobile traffic on its upper deck, with trucks, cars, buses and interurban, commuter trains on the lower, but after the Key System abandoned rail service on April 20, 1958, the lower deck was converted to all-road traffic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eiffel Tower
The Eiffel Tower ( ; french: links=yes, tour Eiffel ) is a wrought-iron lattice tower on the Champ de Mars in Paris, France. It is named after the engineer Gustave Eiffel, whose company designed and built the tower. Locally nicknamed "''La dame de fer''" (French for "Iron Lady"), it was constructed from 1887 to 1889 as the centerpiece of the 1889 World's Fair. Although initially criticised by some of France's leading artists and intellectuals for its design, it has since become a global cultural icon of France and one of the most recognisable structures in the world. The Eiffel Tower is the most visited monument with an entrance fee in the world: 6.91 million people ascended it in 2015. It was designated a '' monument historique'' in 1964, and was named part of a UNESCO World Heritage Site ("Paris, Banks of the Seine") in 1991. The tower is tall, about the same height as an 81- building, and the tallest structure in Paris. Its base is square, measuring on each sid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viaduc D'Ormaiztegi
The Viaduc d'Ormaiztegi or Ormaiztegi Viaduct is a lattice girder viaduct in Ormaiztegi, Spain that was formerly used by a railroad to link a line from Madrid to Irun. It is now considered a historical monument. History The viaduct was designed by French engineer Alexandre Lavalley, and construction was completed in 1863. The viaduct was destroyed during the Spanish Civil War The Spanish Civil War ( es, Guerra Civil Española)) or The Revolution ( es, La Revolución, link=no) among Nationalists, the Fourth Carlist War ( es, Cuarta Guerra Carlista, link=no) among Carlists, and The Rebellion ( es, La Rebelión, link ... and was reconstructed in 1940. In 1996, it ceased to be used and was considered obsolete. A modern viaduct was built nearby. To prevent its demolition, it was declared a historical monument, since after more than 130 years, it has been considered a symbol of Ormaiztegi. Structure The viaduct has a length of and a height of at its highest point. Refe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dalguise Viaduct
The Dalguise Viaduct is a lattice girder viaduct in Dalguise, Perth and Kinross, Scotland. – Canmore It carries the railway across the . Built in 1863, it was designed by Joseph Mitchell, for the then-new |
