Jernbane.net

Hjem > Portugal > Baner og stasjoner > Bruer / infrastruktur
Støtt oss
Ukens Bilde
ukens bilde
EL16 2209 med 5804 i Sundland
Fotograf: Jon-Andreas Sognnæs

Tidligere Ukens Bilde

Dagens bilde
dgens bilde
Ulke Nr.11 i fullt driv!
Fotograf: Aksel Lister

Tidligere Dagens Bilde


Siste opplastninger
Siste innlegg
facebook

Bruer / infrastruktur


Ponte 25 de Abril
Lisboa og Ponte 25 de Abril..Bil og Tog bro sett nordover... i Portugal
© Tore Wahl
Finn i Postvogna
I alt 4 bilder - se alle
Lisboa og Ponte 25 de Abril..Bil og Tog bro... i Portugal
© Tore Wahl
Finn i Postvogna
Lisboa og Ponte 25 de Abril..Bil og Tog bro... i Portugal
© Tore Wahl
Finn i Postvogna
Lisboa og Ponte 25 de Abril..Bil og Tog bro sett nordover... i Portugal
© Tore Wahl
Finn i Postvogna




Ponte Luís I
Dom Luis I Bridge i Porot..Portugal
© Tore Wahl
Finn i Postvogna
I alt 9 bilder - se alle
gamle jernbanebru over elva Douro i Porto
© Lukas Uhlir
Finn i Postvogna
Dom Luis I Bridge i Porot..Portugal
© Tore Wahl
Finn i Postvogna
Porto og Ponte Luiz broen..Metrolinjen Hospital São João ↔ Santo Ovídio
© Tore Wahl
Finn i Postvogna

Luís I Bridge is an arch bridge that crosses the river Douro in Porto, Portugal.
Construction of the bridge started in 1881 and the bridge was opened in 1886. When the bridge opened with a span of 172 meters, it was the largest arch bridge in the world until 1898.

In the upper deck go all metro and the lower deck is car traffic.


Ponte Maria Pia
I alt 1 bilde
Ponte Maria Pia - Porto
© Joachim Eliasson
Finn i Postvogna
Ponte Maria Pia cross the river Douro located in the city of Porto in Portugal. The bridge was opened in 1877 by the king of Portugal and is named for Queen Maria Pia, who lived from 1847 to 1911.

Gustave Alexandre Eiffel given the task of constructing the bridge. He is best known for the Eiffel Tower, but was also a skilled bridge engineer.
Construction of the bridge began in 1876. He used a new technique that made the bridge was faster finished.
Construction began on building the arch from each side without support from below. So building a tower on each side the river that was used to support the arch. It was attached temporary wires in the mountains, who went through the tower arch. As the arc grew was set up several wires that held the bow up. When the arch was finished it stood by itself, and the wires were removed. This technique is used today in many bridges.
While the arch was larger, was the bridge deck built out from each side.
This technique is used when he built the Eiffel Garabit Viadukt.

Maria Pia bridge has been used as a railroad bridge until 1991 when St John took over the bridge.


andre
I alt 1 bilde
Linjen Povoa de varzim mot Famalicao med vägvakt
© Jan Olsson
Finn i Postvogna



Booking.com
Booking.com