Puente Internacional Tancredo Neves
Coordinates: 25 ° 35 ′ 20 ″ S , 54 ° 33 ′ 42 ″ W.
| Puente Internacional Tancredo Neves |
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| Crossing of | Iguaçu | |
| place | Puerto Iguazú / Foz do Iguaçu | |
| construction | Prestressed concrete bridge | |
| overall length | 480 m | |
| width | 16.50 m | |
| Number of openings | three | |
| Longest span | 220 m | |
| start of building | 1983 | |
| completion | 1985 | |
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The Puente Internacional Tancredo Neves , commonly known as Puente Internacional de la Fraternidad / Ponte Internacional da Fraternidade , officially called ponte / puente Tancredo Neves , is an international bridge between Argentina and Brazil . It runs in the border area Triple Frontera over the border river Iguaçu and connects the places Puerto Iguazú in Argentina and Foz do Iguaçu in Brazil. It was built between 1983 and 1985.
It is named after the Brazilian politician Tancredo Neves , who was elected president of his country in 1985 but died before he could take office.
location
The Iguazú Falls are around 20 km away in the southeast of the bridge. 3 km west of it the Iguazú flows into the Río Paraná . The larger and much busier Friendship Bridge (Puente Internacional de la Amistad / Ponte Internacional da Amizade) between the towns of Ciudad del Este in Paraguay and Foz do Iguaçu in Brazil is 12 km further north.
description
The 480 m long road bridge crosses the Iguaçu, depending on the water level, at a height of 70 m. At the lowest water level, the river is still almost 10 m deep; it can swell to a depth of more than 40 m. The bridge has two lanes with emergency lanes and, separated by concrete guide walls , a walkway a little more than 1 m wide on both sides.
The prestressed concrete bridge has a 220 m wide main opening over the river and two 130 m wide side openings over the steep slopes of the valley. It has a rectangular, 8 m wide, haunched box girder , the height of which decreases from 12.3 m at the pillars to 3.8 m in the middle of the field. Its cover plate also forms the cantilevered, 16.5 m wide deck.
The pillars are 54 m high, calculated from their base to the lower edge of the hollow box. In their lower part they have a right-angled hollow cross-section, which is only continued in their upper, 22 m high part in the form of two parallel lamellas. In the 4 m high and 17 m wide square base, the pile heads of the 16 tubes with a diameter of 2 m, which served as caissons , with which they were founded at least 4 m deep in the basalt soil, are combined.
The superstructure was designed as a cantilever , starting from the pillars . After its completion, the cantilever beams were combined into one continuous beam .
literature
- Marcel Prade: Les grands ponts du monde: Hors d'Europe. Brissaud, Poitiers 1990, p. 193.
Web links
- Ponte da Fraternidade completa 32 anos with photo of the bridge, on gdia.com (Portuguese)
Individual evidence
- ↑ The technical information is based on the writing by Osvaldo R. Caracciolo, Jorge Fedrico J. Solari: El Puente Internacional sobre el río Iguazú. In: Hormigón y acero , 4th quarter 1983, No. 149, issue 34, pp. 107-120 (Spanish)