Viaducto César Gaviria Trujillo
Coordinates: 4 ° 49 ′ 3 " N , 75 ° 41 ′ 10" W.
| Viaducto César Gaviria Trujillo | ||
|---|---|---|
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| use | Road bridge | |
| Crossing of | Río Otun | |
| place | between Pereira and Dosquebradas | |
| construction | Cable-stayed bridge | |
| overall length | 440 m | |
| width | 26.8 m | |
| Longest span | 211 m | |
| height | 55 m | |
| vehicles per day | 35,000 vehicles daily | |
| building-costs | $ 50 million | |
| start of building | 1994 | |
| opening | November 15, 1997 | |
| Consulting engineer | Armando Rito | |
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The Viaducto César Gaviria Trujillo is a bridge over the Río Otun in Colombia that connects the two cities of Pereira and Dosquebradas . It is named after the former President of Colombia César Gaviria Trujillo , who comes from Pereira.
Importance for road traffic
The two large cities of Pereira and Dosquebradas lie opposite each other on the Río Otun, which forms a relatively deep valley here. Before the bridge was built, the two-lane road led down into the valley. The four-lane bridge prevented the usual traffic jams and the travel time was reduced by up to 40 minutes, which also benefits long-distance traffic between Cali and Manizales .
Construction and construction
The viaduct is a cable-stayed bridge with two A-plyons. The two pillars are 97 m and 108 m high and 211 m apart. The 72 suspension ropes are arranged in a fan system. The road is a maximum of 55 m above ground. Two lanes and a walking lane lead in each direction. The total length is 440 m. The bridge has computer-controlled sensors that detect long-term changes in the bridge geometry so that these can be compensated for by changing the rope tension.
The bridge was largely carried out by a consortium of Andrade Gutiérrez from Brazil and Walter Bau from Germany. The stay cables were built by the French company Freyssinet International and the Spanish Trenzas y Cables de Acero . At times 550 construction workers were simultaneously employed on the construction site.
safety
Due to the danger of earthquakes in Colombia, great importance was attached to the stability of the construction. The bridge is designed to withstand earthquakes up to a strength of 8 on the Richter scale . The viaduct withstood the first test on January 25, 1999, when a strong earthquake shook the area and claimed over 1,000 lives, but the bridge withstood.
There is conflicting information about the number of fatal accidents during construction work. In his inauguration speech, President Ernesto Samper named the names of six workers who had had an accident, newspaper reports spoke of seven or twelve. In addition, dozens of suicides fell from the bridge in the first few years after it opened, until the city had a protective wall built on the sides.
Individual evidence
- ↑ Edgar Muñoz et al .: Vulnerabilidad sísmica y capacidad de carga de un puente atirantado basados en confiabilidad estructural. (PDF) August 2010, accessed on January 17, 2012 (Spanish, study on the earthquake safety of the bridge).
- ↑ David Mangurian: Graceful span with a heart of steel. (No longer available online.) Inter-American Development Bank, 1998, archived from the original on March 19, 2012 ; accessed on March 11, 2012 (English). Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Marión Benavides García: El Viaducto: Análisis de una Topografía Mitica. (PDF) (No longer available online.) November 29, 2010, p. 88 , formerly in the original ; Retrieved March 11, 2012 (Spanish, Jhon Fredy Acosta, Héctor Daniel Morales, Manuel Salvador Vélez, Gilberto Molina Álvarez, Jhon Jairo Valencia Gómez, Héctor Iván López Ramírez). ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
- ↑ Marión Benavides García: El Viaducto: Análisis de una Topografía Mitica. (PDF) (No longer available online.) November 29, 2010, p. 80 , formerly in the original ; Retrieved on March 11, 2012 (Spanish, Diario del Otún from December 21, 1996 is quoted): "Con este, son siete las víctimas fatales"
- ^ Una vía hacia la muerte. El Pais, January 19, 2003, accessed March 11, 2012 (Spanish).
Web links
- Viaducto César Gaviria Trujillo. In: Structurae
- Inter-American Development Bank: Graceful span with a heart of steel (English, 1998)
- Marión Benavides García: El Viaducto: Análisis de una topografía mítica (doctoral thesis on the viaduct under different aspects, Spanish, 2010)