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Piacenza viaduct is one of the structures along the new high-speed network in Italy
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For the Port of Rotterdam, the Netherlands have built a dedicated Freight Railway Line
[...]
The development of a new railwaystation in the commercial and leasure area of Amsterdam South East is a mayor project.
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The new A10 Highway between Bucelas and Carregado crosses the Loureiro river valley on a 1.050 m. long viaduct at a height of about 90 m. above water level
[...]
The second Imigrantes highway, inaugurated in December 2002, completes the Anchieta-Imigrantes Highway Complex linking the city of São Paulo to the port of Santos and the São Paulo State coast.
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High speed train line Milan – Bologna / Piacenza 1 and Piacenza 2 viaducts
13 11 2005Piacenza viaduct is one of the structures along the new high-speed network in Italy
[...]
High Speed Freight Railway Line
02 07 2005For the Port of Rotterdam, the Netherlands have built a dedicated Freight Railway Line
[...]
New Railway Station Bijlmer
06 05 2005The development of a new railwaystation in the commercial and leasure area of Amsterdam South East is a mayor project.
[...]
Loureiro Viaduct
12 05 2003The new A10 Highway between Bucelas and Carregado crosses the Loureiro river valley on a 1.050 m. long viaduct at a height of about 90 m. above water level
[...]
The Imigrantes Second Highway
07 01 2003The second Imigrantes highway, inaugurated in December 2002, completes the Anchieta-Imigrantes Highway Complex linking the city of São Paulo to the port of Santos and the São Paulo State coast.
[...]
Loureiro Viaduct
published: 12 05 2003
The new A10 Highway between Bucelas and Carregado crosses the Loureiro river valley on a 1.050 m. long viaduct at a height of about 90 m. above water level
The new A10 Highway between Bucelas and Carregado crosses the Loureiro river valley on a 1.050 m. long viaduct at a height of about 90 m. above water level.
The viaduct is composed of 16 spans and is made of two independent decks of concrete box girder type. The decks run parallel to each other but in the right end of the bridge diverge to match the entrance of the two tunnels that are starting just in front of the right abutment. The continuous superstructure has variable depth over the 100 m. long spans and constant depth over the smaller spans.
The construction of piers have been done using special mobile formworks. The decks have been done using two types of equipments. For spans of 100 m. length a cantilever construction process has been used, with segments of 5 m. in length. For spans of 50 m., a mobile cast in-situ formwork has been used, being the concreting made in two phases. In the first phase the bottom slab and lateral walls were concreted and in the second phase the top slab was casted.
Before entering in operation, intensive load tests have been done by LNEC - Laboratorio Nacional de Engenharia Civil -, and vertical displacements, rotations and extensions have been measured and compared with design values.
The main objective of the design was to find an equilibrium between esthetic, efficiency, economy and elegance. All these objectives have been achieved.
The viaduct is composed of 16 spans and is made of two independent decks of concrete box girder type. The decks run parallel to each other but in the right end of the bridge diverge to match the entrance of the two tunnels that are starting just in front of the right abutment. The continuous superstructure has variable depth over the 100 m. long spans and constant depth over the smaller spans.
The construction of piers have been done using special mobile formworks. The decks have been done using two types of equipments. For spans of 100 m. length a cantilever construction process has been used, with segments of 5 m. in length. For spans of 50 m., a mobile cast in-situ formwork has been used, being the concreting made in two phases. In the first phase the bottom slab and lateral walls were concreted and in the second phase the top slab was casted.
Before entering in operation, intensive load tests have been done by LNEC - Laboratorio Nacional de Engenharia Civil -, and vertical displacements, rotations and extensions have been measured and compared with design values.
The main objective of the design was to find an equilibrium between esthetic, efficiency, economy and elegance. All these objectives have been achieved.
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| Project | : | Loureiro Viaduct |
| Location | : | A10 - Highway Bucelas/Carregado Calhandriz (Portugal) |
| Type | : | Continuous bridge - Mixed: cantilever construction and cast in-situ launching girder Double deck concrete box girders |
| Steel quantity | : | 850 tons |
| Main Clien | : | BRISA Auto Estradas de Portugal |
| Contractor | : | J.V. TEIXEIRA DUARTE S.A./ CONSTRUTORA ABRANTINA S.A. (PORTUGAL) |
| Designer | : | J.L. CANCIO MARTINS STRUCTURAL ENGINEERS (Portugal) |
| Period | : | 01/2002 - 04/2003 |
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