Ponte Edgar Cardoso
Coordinates: 40 ° 8 ′ 43 " N , 8 ° 50 ′ 31" W
| Ponte Edgar Cardoso | ||
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| use | Road traffic | |
| Crossing of | Mondego , Linha do Oeste | |
| place | Figueira da Foz | |
| construction | Cable-stayed bridge | |
| overall length | 1421 m | |
| width | 20.6 m | |
| Longest span | 225 | |
| height | 85 m | |
| building-costs | 7.5 million euros | |
| start of building | 1978 | |
| completion | 1982 | |
| opening | 1982 | |
| planner | Edgar Cardoso | |
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The Ponte Edgar Cardoso , also known as Ponte da Figueira da Foz , is the only bridge that spans the Mondego River in the Portuguese coastal town of Figueira da Foz .
description
The four-lane road bridge connects the city center, north of the river, with the southern districts of Cova and Gala, which are in the São Pedro municipality , and the city's hospital there. It is also part of the N109 national road running in a north-south direction. In addition to the river, the northern access ramp of the bridge also crosses the railway tracks in front of the nearby Figueira da Foz station , where the Linha do Oeste ends, as well as a local road and the port facilities on the quay .
The 1421 m long structure consists of a 405 m long cable-stayed bridge , the northern, 315 m long access ramp with its 46 long abutment and the southern, 630 m long ramp with its 25 m long abutment.
The bridge has two lanes in each direction, separated by guard rails in the middle. There are 2 m wide walkways on both sides. The bridge is a total of 20.6 m wide. It crosses the river at a height of around 40 m.
Cable-stayed bridge
The cable-stayed bridge has a central opening with a span of 225 m and two side openings with a span of 90 m.
The two 85 m high pylons are formed by two rectangular concrete pillars on both sides of the roadway girder, which are slightly inclined both in the longitudinal direction to each other and towards the middle of the bridge, so that they form a common point. These peaks are stiffened transversely to the roadway by a simple cross-beam made of reinforced concrete. All four pillars are connected to one another by a concrete frame under the deck girder and just above the water surface.
The track support consists of a 2 m high steel - truss structure with a thin ceiling of reinforced concrete. It is carried by tufted ropes anchored at the tips of the pylons , with three ropes being stretched in both directions to the deck girder on both sides of a pylon. The ropes are attached to both sides of the deck girder at intervals of 30 m. The middle part, separated by expansion joints , is an independent component that rests on the ends of the girders attached to the ropes.
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Access ramps
The access ramps are prestressed concrete bridges , each with a span of 45 m, are supported on slender concrete pillars that are stiffened by crossbars under the deck. The T-beam bridges are stiffened both lengthways and crossways with concrete beams. The northern ramp, which rises in a straight line to the bridge, has 7 fields, the southern ramp, which describes a long arch, has 14 fields. The gradient is a maximum of 5%.
history
The bridge was planned by the Portuguese bridge construction engineer Edgar Cardoso and opened in 1982 after four years of construction. It was the first cable-stayed bridge in Portugal. The construction costs amounted to 1.5 billion escudos (approx. 7.5 million euros). At first it was called, like its predecessor, only Ponte da Figueira da Foz (English: Bridge of Figueira da Foz), as it was the only bridge over the Mondego in the city.
Its predecessor was a low iron bridge with 16 pillars, opened in 1907, which had only one lane in each direction of travel. It was further west near the train station. After it could no longer cope with the increased volume of traffic and restricted the adjacent cargo port, it was replaced by the new bridge and demolished.
From 2003 to 2005, the Soares da Costa company carried out extensive renovation and conversion work in a 14 million euro project , in connection with the construction of the connections to the new A17 motorway and the expanded trunk roads, but also to equip with new technology. At that time, the bridge was given its current name in memory of its builder, who died in 2000 and who became famous for many other bridges (e.g. the Ponte da Arrábida in Porto ). In everyday life, however, it is often still referred to by its old name.
Web links
- Aerial view of the Ponte Edgar Cardoso
- Ponte Edgar Cardoso on the website of the Estradas de Portugal (port.)
- INSPECÇÃO DA PONTE DA FIGUEIRA DA FOZ E DOS VIADUTOS DE ACESSO - Detailed inspection and test report (port.) (PDF; 3.3 MB)
Individual evidence
- ^ Ponte Edgar Cardoso “inaugurada pelo povo que a pagou” ( Memento of May 12, 2014 in the Internet Archive ), accessed on August 25, 2012
- ↑ Ponte Edgar Cardoso (páginas): - on antoniocruz.net ( Memento of January 4, 2009 in the Internet Archive ), accessed on August 25, 2012