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Symphony Bridge
A symphony bridge or bridge symphony is a bridge which combines the structural support systems of a suspension bridge, a cable-stayed bridge and a cantilever bridge. No such bridges have been built, nor are there any specific plans, although the method has been considered for several bridges in Norway. It was developed collaboratively by the Norwegian Public Roads Administration and the civil engineering consulting company Aas-Jakobsen as a means of building bridges with spans between . The design is based on two separate roadways which are connected by crossbeams. A symphony bridge would have two pylons, which would be circular in hollow cross-section. The center of the bridge would be supported by a central cable (unlike the conventional two side cables of a suspension bridge) connected to the deck via hangers connected to the crossbeams. The cross-beams and hangers are triangular in form. On both sides of the suspension section, the bridge would be built as a cable-stayed bridge w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridge
A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually something that is otherwise difficult or impossible to cross. There are many different designs of bridges, each serving a particular purpose and applicable to different situations. Designs of bridges vary depending on factors such as the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, and the material used to make it, and the funds available to build it. The earliest bridges were likely made with fallen trees and stepping stones. The Neolithic people built boardwalk bridges across marshland. The Arkadiko Bridge (dating from the 13th century BC, in the Peloponnese) is one of the oldest arch bridges still in existence and use. Etymology The '' Oxford English Dictionary'' traces the origin of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suspension Bridge
A suspension bridge is a type of bridge in which the deck (bridge), deck is hung below suspension wire rope, cables on vertical suspenders. The first modern examples of this type of bridge were built in the early 1800s. Simple suspension bridges, which lack vertical suspenders, have a long history in many mountainous parts of the world. Besides the bridge type most commonly called suspension bridges, covered in this article, there are other types of suspension bridges. The type covered here has cables suspended between towers, with vertical ''suspender cables'' that transfer the Structural load#Live load, imposed loads, transient load, live and Structural load#Dead load, dead loads of the deck below, upon which traffic crosses. This arrangement allows the deck to be level or to arc upward for additional clearance. Like other suspension bridge types, this type often is constructed without the use of falsework. The suspension cables must be anchored at each end of the bridge, s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cable-stayed Bridge
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 were being designed and constructed by the late 16th century, and the form 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cantilever Bridge
A cantilever bridge is a bridge built using structures that project horizontally into space, supported on only one end (called cantilevers). For small footbridges, the cantilevers may be simple beam (structure), beams; however, large cantilever bridges designed to handle road or rail traffic use trusses built from structural steel, or box girders built from prestressed concrete. The steel truss cantilever bridge was a major engineering breakthrough when first put into practice, as it can span distances of over , and can be more easily constructed at difficult crossings by virtue of using little or no falsework. Origins Civil engineer, Engineers in the 19th century understood that a bridge that was continuous across multiple supports would distribute the loads among them. This would result in lower stresses in the girder or truss and meant that longer spans could be built. Several 19th-century engineers patented continuous bridges with hinge points mid-span. The use of a hing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norwegian Public Roads Administration
The Norwegian Public Roads Administration ( no, Statens vegvesen) is a Norwegian government agency responsible for national and county public roads in Norway. This includes planning, construction and operation of the national and county road networks, driver training and licensing, vehicle inspection, and subsidies to car ferries. The agency is led by the Directorate of Public Roads (Vegdirektoratet), and is subordinate to the Ministry of Transport and Communications. The Norwegian Public Roads Administration is divided into five regions and thirty districts, which are subordinate to the directorate. The directorate is based in Oslo. The Norwegian Public Roads Administration is one of the largest government agencies of Norway in terms of budget. In matters concerning national roads, the agency is subordinate to the ministry and in matters concerning county roads subordinate to the county administration. Core activities The Norwegian Public Roads Administration strives to ensure ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aas-Jakobsen
Dr. ing. A. Aas-Jakobsen AS, trading as Aas-Jakobsen, is a civil engineering consultant company specializing in structural engineering. The company is based in Oslo, Norway, and primarily works with bridges, roads, railways, offshore oil and buildings. The company has 250 employees. The company was established by Andreas Aas-Jakobsen (1905–1980) in 1937. For the first decade, the company specialized in shell structures, but from the 1950s, the company shifted to bridge design. The company later started designing offshore installations and became a verifier for such structures, and later also became a consultant for railway projects and major road projects, such as the Bjørvika Tunnel through Oslo. Major projects which the company has participated in include the Arctic Cathedral, Askøy Bridge, Bømla Bridge, Brønnøysund Bridge, Candaba Viaduct, Djupfjordstraumen Bridge, Drammen Bridge, Grenland Bridge, Heidrun, Helgeland Bridge, Henningsvær Bridge, Lysefjord Bridge, Mjà ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teknisk Ukeblad
''Teknisk Ukeblad'' (''TU'', en, Technical Weekly Magazine) is a Norwegian engineering magazine. The magazine has its headquarters in Oslo, Norway. History and profile ''TU'' has appeared weekly since 13 April 1883 and was published by Ingeniørforlaget, now Teknisk Ukeblad Media jointly owned by three national professional associations of engineers and architects: the Norwegian Society of Engineers and Technologists (NITO, founded 1936), Tekna (founded in 1874), and the Norwegian Polytechnic Society (PF, founded 1852). On 24 June 2010 ''TU'' had a total circulation of 302,000 weekly copies. Corresponding publications are '' Ny Teknik'' in Sweden, ''Ingeniøren'' in Denmark and ''Technisch Weekblad'' in the Netherlands. References External links Teknisk Ukeblad the magazine's websiteTeknisk Ukeblad some older volumes digitized by Project Runeberg Project Runeberg ( sv, Projekt Runeberg) is a digital cultural archive initiative that publishes free electronic versions of b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HÃ¥logaland Bridge
The Hålogaland Bridge ( no, Hålogalandsbrua) is a suspension bridge which crosses the Rombaksfjorden in Narvik Municipality in Nordland county, Norway. It is the second-longest bridge span in Norway. The bridge is part of the European Route E6 highway. It was built to shorten the driving distance from the town of Narvik to the village of Bjerkvik by and from Narvik to Bjørnfjell, via European Route E10 by . The bridge cost . Financing came from a mix of state grants and tolls. The bridge lies above the Arctic Circle and is the longest suspension bridge within the Arctic Circle at the time of its construction. Construction of the bridge was featured on Season 1 Episode 4 of the Science Channel show Building Giants, titled ''Arctic Mega Bridge''. Another suspension bridge, the Rombak Bridge, is nearby further-east through the fjord. Construction began on February 18, 2013 and was completed in 2018. The inauguration ceremony was held on December 9, 2018, and the bridge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norwegian Krone
The krone (, abbreviation: kr (also NKr for distinction); code: NOK), plural ''kroner'', is currency of the Kingdom of Norway (including Svalbard). Traditionally known as the Norwegian crown in English. It is nominally subdivided into 100 ''øre'', although the last coins denominated in øre were withdrawn in 2012. The krone was the thirteenth-most-traded currency in the world by value in April 2010, down three positions from 2007. The Norwegian krone is also informally accepted in many shops in Sweden and Finland that are close to the Norwegian border, and also in some shops in the Danish ferry ports of Hirtshals and Frederikshavn. Norwegians spent 14.1 billion NOK on border shopping in 2015 compared to 10.5 billion NOK spent in 2010. Border shopping is a fairly common practice amongst Norwegians, though it is seldom done on impulse. Money is spent mainly on food articles, alcohol, and tobacco, in that order, usually in bulk or large quantities. This is due to considerably ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Storfjord Bridge
The Storfjord Bridge ( no, Storfjordbrua) is a proposed suspension bridge that would span Storfjorden in Sunnmøre, Norway. If built, it would be long and have a main span of . This would make it the longest spanned bridge in the world, easily surpassing the 1915 Çanakkale Bridge, which has a main span of . The plans have been developed by Aas-Jakobsen for a Storfjordsambandet, a company which aims to toll finance the bridge. According to Rolf M. Larssen of Aas-Jakobsen, there is a larger challenge securing sufficient funding than technically building the bridge. It is estimated to cost 4.3 billion Norwegian krone. History In a report made by Aas-Jakobsen, two crossings were discussed, one slightly in-fjord from the ferry and one which would cross to Ørskog. The bridge would have a single main cable and a split bridge beam. The cable would run down the centre of the bridge, with the lanes on each side of an open area with cross-sections. While this method is more expensive, it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
