Tavanasa Bridge, also known as ''Vorderrheinbrücke, Tavanasa'' is the name of the two
reinforced concrete three
hinged arch bridge
A hinged arch bridge is one with hinges incorporated into its structure to allow movement. The most common varieties are the two-hinged bridge with hinges at the springing points and the three-hinged bridge with an additional hinge at the crown ...
s designed by Swiss
civil engineer
A civil engineer is a person who practices civil engineering – the application of planning, designing, constructing, maintaining, and operating infrastructure while protecting the public and environmental health, as well as improving existing i ...
Robert Maillart
Robert Maillart (16 February 1872 – 5 April 1940) was a Swiss civil engineer who revolutionized the use of structural reinforced concrete with such designs as the three-hinged arch and the deck-stiffened arch for bridges, and the beamless ...
. The first of these was constructed in 1904, but later destroyed by an
avalanche
An avalanche is a rapid flow of snow down a slope, such as a hill or mountain.
Avalanches can be set off spontaneously, by such factors as increased precipitation or snowpack weakening, or by external means such as humans, animals, and ear ...
. The second, constructed in 1928 stands to this day.
History
The previous bridge of 1904, saw a development in Maillart's own treatment of the arch. This bridge was a three-hinged reinforced concrete hollow
box girder arch bridge, and unlike Maillart's previous bridge at
Zuoz
Zuoz () is a municipality in the Maloja Region in the Swiss canton of Graubünden.
History
Zuoz is first mentioned about 840 as ''Zuzes''. Historically, Zuoz was the political center of the upper Engadin. It was the seat of the local bishop. But ...
, saw the removal of the horizontal members of the box girder near the supports, which had experienced cracking. The replacement of the destroyed bridge however, became a high arch bridge through the insistence of the
canton
Canton may refer to:
Administrative division terminology
* Canton (administrative division), territorial/administrative division in some countries, notably Switzerland
* Township (Canada), known as ''canton'' in Canadian French
Arts and ente ...
.
Maillart's later
Salginatobel Bridge
Salginatobel Bridge is a reinforced concrete arch bridge designed by Swiss civil engineer Robert Maillart. It was constructed across an alpine ravine in the grisonian Prättigau, belonging to the municipality of Schiers, in Switzerland between ...
re-uses a similar form.
Image gallery
Image:Rheinbrücke Tavanasa Bauplan 01 11.jpg, Construction drawing of the first Tavansa Bridge
References
{{reflist
Bridges in Switzerland