Puentes arco sobre el rio Nervion en Bilbao para el ferrocarril metropolitano de la ciudad
Arch bridges over the river Nervion on the Bilbao metropolitan railway line
El metro de Bilbao, en el tramo Bolueta-Etxebarri, debe cruzar dos veces el rio Nervion en dos puntos muy proximos y con una morfologia del cauce analoga. Por ello, los dos puentes se han resuelto con la misma solucion: un arco que salva el cauce del rio. La imposibilidad de situar apoyos provisionales en el cauce del rio ha llevado a construir los semiarcos en posicion cuasi vertical sobre los arranques, y luego abatirlos mediante un giro con centro en los arranques de los arcos. Una vez unidos los semiarcos en clave mediante una articulacion, se tiene un arco triarticulado; posteriormente se hormigona la clave y los arranques dejando el arco biempotrado. (A). English abstract: The Bolueta-Etxebarri section on the Bilbao Metro line has to cross the River Nervion at two very close points and where the river bed presents very similar characteristics. As such the two bridges were designed to span the river with the same arch solution. The impossibility of placing provisional supports within the river led to the construction of semi-arches in a quasi vertical position over the abutments. These arches were then turned and lowered from the centre of the arch spring. Once the two semi-arches were connected by a hinge joint at the key to form a three-hinged arch the key and arch springs were concreted to reduce this to a two-hinged structure. (A).
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/00348619
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Authors:
- FERNANDEZ TROYANO, L
- FERNANDEZ MUNOZ, L
- Publication Date: 2004-6
Language
- Spanish
Media Info
- Pagination: 115-26
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Serial:
- Revista de Obras Publicas
- Issue Number: 3.445
- Publisher: Colegio de Ingenieros de Caminos
- ISSN: 0034-8619
Subject/Index Terms
- TRT Terms: Arch bridges; Bridge members; Construction management; Falsework; Foundations; Hinges; Jacks (Mechanical equipment); Length; Railroad tracks; Subways
- Uncontrolled Terms: Bridge spans
- Geographic Terms: Spain
- ITRD Terms: 3462: Articulacion (estructura); 3423: Cimbra; 3377: Cimentacion; 8105: Espana; 3831: Gato; 3452: Luz (puente); 3666: Metodo de construccion; 1191: Metro; 3427: Puente en arco; 1062: Via de ferrocarril
- Subject Areas: Bridges and other structures; Construction; Railroads; I24: Design of Bridges and Retaining Walls; I53: Construction of Bridges and Retaining Walls;
Filing Info
- Accession Number: 01183542
- Record Type: Publication
- Source Agency: Centro de Estudios y Experimentación de Obras Públicas (CEDEX)
- Files: ITRD
- Created Date: Oct 7 2010 11:20AM