Viaduct

Viadukt bei Plessen, Foto von 1958
viaduct with Plessen, photo of 1958
viaduct ( V.; Switzerland: v.) comes from latin (via = way + ducere = lead; PPP ductum) and means guidance or guidance or very freely translates route.

Viaduct we call todaymore or less high and long bridges of a road or a railway, which lowers upward gradient-poor a valley or a one with columns and elbows span.

In addition the viaduct is a job fair for Germany and Poland, each year in November at the European university Viadrina in Frankfurt(Or) takes place. It is a singular Recruiting meeting, which offers both graduate inside, studying and OsteuropaexpertInnen from Germany and Poland, and enterprise, institutions and NGOs outstanding conditions of a common communication platform. More information under www.viadukt.org


table of contents

overview

Der Saugrabenviadukt der Mariazellerbahn

of viaducts from stones, bricks, concrete, iron or wood are built. In the closer sense one understands the smaller by viaduct also Transfers and underpasses of roads or railways with one to three openings, which are exaggerated over-curved or with iron on stone columns resting, substantial rolled or from sheet metal and Fassoneisen composed girders. Stone viaducts have mostly Halbkreisgewölbe, slim columns and with increasing heights two, threeand four levels by Zwischengewölbe to be formed. Either the intermediate columns are equivalent strong or weaker. Group columns are present if several intermediate columns alternate with stronger columns.

stone viaducts

iron viaducts

iron viaducts exhibit usually stone columns like the viaduct with Znaim or iron columns on stone bases like the Crumlinviadukt with new haven in Southwales, the Saaneviadukt with Freiburg, the Sitterviadukt with pc. Gallen, the viaducts of the Orleansbahn with Baufseau d'Ahun and over cerium, the viaduct over the Gravine with Castellanetta, the viaduct over the Pfrimmtal with Marnheim in the Rheinpfalz.

On the line Erfurt - Ilmenau of the Thüringer course is the single-railed valley pass established with Angelroda with a cast-iron viaduct, as well as in the line Friedberg - Hanau the viaduct over the Niddatal

further one iron viaducts:

viaducts from wood

the viaducts from wood had a small meaning and were usually only one temporary solution, since they caught and burned fires down easily by the flying sparks of the steam engines. They were built nevertheless, since they were economical in the establishment. As historical examplescan the burned down viaducts over the genesis river with Portage in the United States with 57,4 m high wood columns and the viaducts over the Msta in Russia with 21,34 m high wood columns, both on bricked bases, be called.

viaducts from stealing and prestressed concrete

history

Lyman's viaduct of the Pacific Railway, 1876

although the building by viaducts only with the emergence of the railways 1830 strengthened used, had it already in the antiquity, particularly with the Romans its meaning. Beside thatimportant similar buildings of the aquaducts, there are still the curved viaducts in the pränestinischen army route between Rome and Gabii with Halbkreisgewölben and columns from Tuffquadern as well as those the Appi army route with Aricia.

Viaduct of Millau became to 14. December 2004 of president Jacques Chirac open and is one of the imposantesten bridges of the world: Carried by seven columns it traverses the valley of the camouflage of five kilometers with a length of 2460 meters and maximally 270 meters height as motorway bridge to the west of Millau.

Viaducts were popular motives inthe pictures of Lyonel Feininger.

see also

Web on the left of

  • Structurae international gallery and data base of the civil engineering
  • [1] viadukt.06, job fair for Germany and Poland
 

  > German to English > de.wikipedia.org (Machine translated into English)