Ponte de Sao Joao
Coordinates: 41 ° 8 ′ 20 " N , 8 ° 35 ′ 43" W.
| Ponte de Sao Joao | ||
|---|---|---|
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| use | Railway bridge | |
| Convicted | Linha do Norte | |
| Crossing of | Douro | |
| place | Porto - Vila Nova de Gaia | |
| construction | Prestressed concrete - frame bridge | |
| overall length | 1140 m | |
| width | 12 m | |
| Longest span | 250 m | |
| height | 66 m | |
| start of building | 1984 | |
| opening | June 24, 1991 | |
| planner | Edgar Cardoso | |
| location | ||
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The Ponte de São João ( Bridge of Saint John the Baptist ) is a railway bridge over the Douro between Porto and Vila Nova de Gaia , which leads the Linha do Norte over the river.
It stands about 150 m above the Ponte Maria Pia , the wrought-iron arch bridge built by Gustave Eiffel and opened in 1877 , over which rail traffic was handled until the opening of the Ponte de São João. Both bridges connect General Torres train station in Vila Nova de Gaia with Porto-Campanhã train station, Porto's main train station.
The new bridge was opened on June 24, 1991, the Dia de São João ( St. John's Day), which is celebrated as a city festival in many Portuguese cities, including Porto.
description
The Ponte de São João is a total of 1140 m long and 12 m wide. It has a 250 m wide main opening above the river, the two pillars of which are close to the bank. In the south, there are 125 m + 5 × 60 m + 59 m wide bridges and a 50 m long transition structure with which the initially steep slope and the houses and streets in the flatter terrain are crossed. Fields of 125 m + 2 × 60 m + 50 m and a 61 m long ramp are connected over the steeper northern slope.
The track support is a 12 m wide, slightly haunched prestressed - hollow box , which with the two pillars one of the main opening frame bridge is formed. It is designed as a continuous beam that rests with bearings on the other pillars.
The two pillars of the main opening have a round hollow cross-section at the base, which merges into a slim rectangular cross-section after a few meters. They are seamlessly connected to the deck girder, making the function of the frame visible.
The two tracks are 68 m above the water level. They are attached to a slab track . Derailment protection has been laid along the entire length of the bridge . There are narrow makeshift platforms in the middle and on both sides of the tracks. Lamps are installed over the railing at regular intervals .
The Ponte de São João was designed by Edgar Cardoso and executed between 1984 and 1991. The “FERDOURO-ACE” consortium carried out the construction, the following companies formed the consortium: Sociedade de Construções Soares da Costa , Teixeira Duarte and Obras Públicas e Cimento Armado. Bratex-Agrupamento para Consultaria e Gestão de Projectos, ACE carried out the construction supervision . The bridge is now owned by Infraestruturas de Portugal .
With the opening of the double-track Ponte de São João, the single-track Ponte Maria Pia went out of service.
Web links
- São João Bridge. In: Structurae
- Ponte S. João on the website of the Centro Histórico do Porto
- Ponte de Sao Joao . Paper of the Faculdade de Engenharia da Universidade do Porto from November 2014 (PDF; 1.5 MB) (Portuguese)
Individual evidence
- ↑ Ponte de São João foi inaugurada há 25 anos on Porto.pt
- ↑ São João Bridge. In: Structurae
- ^ Ponte de São João . Paper of the Faculdade de Engenharia da Universidade do Porto from November 2014 (PDF; 1.5 MB) (Portuguese)
- ↑ Google Street View