Almonte viaduct
Coordinates: 39 ° 37 ′ 1 ″ N , 6 ° 24 ′ 13 ″ W.
| Almonte valley bridge (Alcántara reservoir) |
||
|---|---|---|
 |
||
| Official name | Puente Arcos de Almonte | |
| use | Highway bridge | |
| Convicted |
|
|
| Crossing of | Río Almonte (Alcántara Reservoir) | |
| place | near Cáceres , Extremadura | |
| construction | 2 concrete arch bridges | |
| overall length | 432 m or 388 m | |
| width | 2 × 13.5 m | |
| Longest span | 184 m | |
| Arrow height | 42 m | |
| completion | 2005 | |
| planner | Siegrist y Moreno | |
| location | ||
|
||
The Almonte Viaduct ( Spanish Puente Arcos de Almonte ) is a motorway bridge on the Spanish A-66 - Autovía Ruta de la Plata .
location
The structure stands near Cáceres , Extremadura and bridges the Río Almonte or the arm of the Alcántara reservoir , in which the river rises. The Alconétar viaduct on the A-66 over the Tajo arm of the reservoir is 12 km further north.
description
The Puente Arcos de Almonte consists of two parallel, 432 m and 388 m long concrete arch bridges with an overhead carriageway and a span of 184 m. Each of the bridges has two lanes and a safety lane on both sides, which is also provided for maintenance personnel. There are no sidewalks. The bridges are wide enough for a later conversion to three-lane traffic. When it is full, the motorway crosses the reservoir at a height of around 47 m.
The bridges are 13.5 m wide and are about 6.5 m apart. The deck girders are made of prestressed concrete , the arches, the supports on the arches and the pillars are made of reinforced concrete . The latter have a uniform pillar spacing of 22 m, only 18 m at the two ends of the bridge.
The arches each consist of a 6.6 m wide single-cell hollow box , the construction height of which decreases from 3.0 m at the transom foundations to 1.8 m at the apex. Both arches have a span of 184 m and an arrow height of 42 m.
The arches were erected using a cantilever . The bracing took place from the foot of the two penultimate piers over the head of the pillar on the bank. As the front end carriage advanced, an anchoring system was added to the next support on the arch, with the supports being connected to the initial anchoring at the pillar feet by horizontal anchoring. After the arch had closed, the roadway girder was concreted from both sides with an advancing scaffold.
To the southwest of the bridge is a simplified example of a pillar with a guyed part of the arch next to the motorway.
The bridge was designed by the Siegrist y Moreno engineering firm and executed by Acciona Infraestructuras . It was completed in 2005.
Web links
- Almontebrücken. In: Structurae
- Guillermo Siegrist Ridruejo: Arco de Almonte. In: Hormigón y Acero No. 240, 2.º Trimestre 2006, pp. 5–29 (in PDF pp. 7–31), on e-ache.com (Spanish, English)
- Pedro Plasencia Lozano: Alconétar, paisaje cultural de la ingeniería. Una propuesta de ordenación territorial. Pp. 1-19, on dialnet.unirioja.es
Individual evidence
- ↑ Unless otherwise stated, the information in this article is based on the publication by Guillermo Siegrist Ridruejo: Arco de Almonte . In: Hormigón y Acero No. 240, 2nd Trimestre 2006, pp. 5–29 (Spanish, English)
- ↑ Scheme of the guy lines on p. 20 and 23 (in the PDF p. 22 and 25) by Arco de Almonte