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Bridges
Client:
SGTM – SOCIETE GENERAL DE TRAVAUX DU MAROC
Description:
Duplication project of the existing viaduct over the significant railway line to Casablanca Harbor, in Morocco.
The duplication involves the construction of a new viaduct next to the existing which is 240 m long and 9.90 m wide. The deck is in section caisson mixed steel and concrete. The main span over the railway lines has 38 m. The rectangular section pillars have a column head. They are supported, in general, by a block of 4 piles.
Services:
Plan of execution. The work was finished in 2011.
Date:
2009
Estimated Construction Cost:
10.000.000,00€
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Client:
SGTM – SOCIETE GENERAL DE TRAVAUX DU MAROC
Description:
Rehabilitation project of the existing viaduct near the Casablanca Harbor in Morocco.
The rehabilitation consists of the following procedures:
- Replacement of the bearings and the expansion joints;
- Widening of the deck at one end;
- Insertion of a new metallic walkway;
- Painting and general repaving.
It is noteworthy the structural strengthening of the main viaduct so as to give the deck enough stiffness to eliminate/mitigate the excessive vertical vibrations of the existing deck.
Services:
Plan of execution. The work was finished in 2011.
Date:
2009
Estimated Construction Cost:
10.000.000,00€
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Client:
PAL ASIACONSULT
Description:
Set of 24 prefabricated viaducts with a total length of 2770m, included in the contract for the construction of the C270's fraction of Macau's new Surface LRT.
These externally prestressed (with straight track) viaducts separated by expansion joints, have spans about 30m/35m and a total maximum length of 140m.
Stage Construction type is segmental kind, a system widely used in Asian countries. This procedure uses two gantries in order to have more work fronts. Whenever a curve with a tighter radius takes place, falseworks will be used.
Services:
Final Project developed in partnership with PAL ASIACONSULT and Profabril II.
Date:
2011
Estimated Construction Cost:
26.000.000,00€
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Client:
ETERMAR
DESCRIPTION:
Bridge over river Muni with about 700 m long which will allow connecting towns of Cogo and Akalayong in Equatorial Guinea. The future bridge deck will have an each way road as well as footway on both sides, adding up a total width of 9.90 m
The structural solution considered consists on the use of continuous frame with ordinary spans of 20 m and precast deck. Beams will be pre stressed on a proper building site for precast to be built specifically for this construction.
The main span for vessel crossing will have 40 m, considering, both by aesthetic and technical reasons, a mix solution steel-concrete for the deck, with ties turned to metallic masts. The infrastructure will be constituted by a solution of pile/column with about 35 m maximum long, due to deficient foundation conditions detected.
SERVICES:
Design in development
DATE:
2012
CONSTRUCTION COST:
-
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Client:
EP - Estradas de Portugal
Description:
Road Tunnel inserted in an urban area which allows crossing the complete CRIL road through a tunnel structure, situated in Venda Nova area, in Amadora, Portugal.
The tunnel includes 3 roadways in both sides, with a total width of 34.10m. Longitudinally it presents an extension of 235m.
It must be pointed out its complexity associated to the stage construction. Being the tunnel's lateral wall very close to a neighborhood, one was forced to use "top down" inverted construction method. This proximity to the existing structures was controlled through the risk analysis of the nearby buildings by the "Burland" method, as well as with the use of a proper instrumentation and observation plan intensified during construction and which is still currently in use (with the structure functioning).
Services:
Base Project and Tender Project.
Date:
2008
Estimated Construction Cost:
CRIL - Total Cost 111.000.000,00€
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Client:
EP – Estradas de Portugal
DESCRIPTION:
This works purpose is to cross CRIL (Internal Regional road of Lisbon) over Ruy Luis Gomes Avenue.
This viaduct includes a continuous frame divided in 3 parts with a total length of 62 m.
The deck platform has 34.2 m width.
The deck is made of 14 beams in I form precast and pre tensioned. It has been given continuity over the supports by using superior post force of continuity.
Each support alignment includes 4 round columns with 1.20 m of diameter.
SERVICES:
Base Project and Tender Project.
DATE:
2008
CONSTRUCTION COST:
CRIL - Total Cost 111.000.000,00€
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Client:
EP – Estradas de Portugal
DESCRIPTION:
This works purpose is to cross CRIL (Internal Regional road of Lisbon) over Correia Road..
This viaduct includes a continuous frame divided in 4 parts with a total length of 88 m. The deck width varies between 31.05 m and 32.7 m.
The deck is made of 12 beams in I form precast and pre tensioned. It has been given continuity over the supports by using superior post force of continuity.
Each support alignment includes 4 round columns with 1.00 m of diameter.
SERVICES:
Base Project and Tender Project.
DATE:
2008
CONSTRUCTION COST:
CRIL - Total Cost 111.000.000,00€
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Client:
EP – Estradas de Portugal
DESCRIPTION:
This works purpose is to cross 6AB branch of CRIL at Pedralva’s node.
The overpass structure includes a frame of one span only with 28.3 m long. The deck platform has 14.25 m width.
The deck is made of 6 beams in I form precast and pre tensioned.
Abutments are materialized by a curtain of piles with 1.00 m apart from each other 1.30 m.
SERVICES:
Base Project and Tender Project.
DATE:
2008
CONSTRUCTION COST:
CRIL - Total Cost 111.000.000,00€
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Client:
EP – Estradas de Portugal
DESCRIPTION:
This works purpose is to cross the reestablishment 6.1 of CRIL in Benfica Rotunda.
Underpasses structures includes a frame of one span only with 20.0m long. The decks platform has 17.25 m width.
Decks are made of 7 beams in I form precast and pre tensioned.
Abutments are materialized by reinforced concrete walls with constant thickness of 1.20 m which are supported over piles of 1.00 m apart from each other 2.00 m.
SERVICES:
Base Project and Tender Project.
DATE:
2008
CONSTRUCTION COST:
CRIL - Total Cost 111.000.000,00€
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Client:
Monte Adriano, Engenharia e Construção
Description:
Centenary Railway bridge which has been replaced by a new construction at the same place, with double span of the existing one. The structure/Design considered has been the kea for the enterprise success. Railway interruptions have been minimum during night periods, and road inconveniences have been reduced on an important road of Setubal City.
The structural solution has included a closed frame in Prestressed reinforced concrete. The bridge construction has been made in two main phases. The 1st Phase (half bridge execution) has been made through the "hydraulic Sliding" system. The 2nd phase (the other half bridge execution and connection between both structures) has been made by moulding in site under the railway in functioning.
Services:
Plan of execution.
Date:
2009
Estimated Construction Cost:
600.000,00€
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Client:
Rushmore S.A.
Description:
Design-building Bid for the construction of three pedestrian crossings over the main road which connects Luanda to Lobito in Angola, without traffic interruption during assembling.
The naximum span for the tree bridges is about 30.10m.
The structural solution adopted is totally metallic – Collumns, deck and access stairs. Deck is composed by two longitudinal metallic open-web beams, connected on top by a concrete slab over cooperative plate.
Assembling was made in site in less than a month.
Services:
Plan of execution.
Date:
201
Estimated Construction Cost:
450.000,00€
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Client:
Refer – Rede Ferroviária Nacional
DESCRIPTION:
Road Viaduct in prestressed reinforced concrete with 158 m long and 13.1 m width . It has a maximum span of 30 m over the railway crossing area.
It is characterized by its curb layout in plan. The deck is made “in situ” with cimbre to the soil, it is composed by a bulk slab with regular thickness, which is lightened on mid-span area.
It has been used the column/pile technology for the structure support.
It presents wing walls extensive in Reinforced Earth.
SERVICES:
Preliminary Study (1st place in Public Bid) and Tender project of structure and foundations. Technical Assistance.
DATE:
2006
CONSTRUCTION COST:
1.054.315,00€
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Client:
PROMORAIL
DESCRIPTION:
Two rail-tracks underpasses in reinforced concrete closed frame. The span is 10.6 m long.
They are characterized by its madding process – “slide”, with road provisory suspension during construction works (without road closing, only narrowing parts).
The hard frame presents a deck with gussets near the supports.
Stanchions and raft foundation have regular thickness of 0.70 m. Wing walls are also in reinforced concrete made “in situ”.
SERVICES:
Tender projects (Alternative) of structure and foundations and construction in general.
Technical Assistance during construction.
DATE:
2007
CONSTRUCTION COST:
1.400.000,00€
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Client:
EP – Estradas de Portugal S.A.
DESCRIPTION:
Road viaduct in prestressed reinforced concrete with 206 m long and 26.7 m total width. It has standard spans of 21.5 m.
The viaduct setting area is placed over an alluvial low which is composed by deposits little consolidated and of week geotechnical characteristics.
The deck is made “in situ” supported over cimbre to the soil, it is composed by a massive Ribbed slab with regular thickness. It has been used the column/pile technology for the structure support.
SERVICES:
Preliminary Study) and Tender project of structure and foundations. Technical Assistance.
DATE:
2003 - 2004
CONSTRUCTION COST:
2.030.400,00€
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Client:
PROMORAIL
DESCRIPTION:
Train-tracks underpass for replacement of the existent culvert. It has a span of 7.55 m.
It must be pointed out its constructive process. The works are performed without causing big disturbs to the regular train circulation. In order to do this, it is placed metallic structure of ´road suspension supported directly on the top beams of the two pile curtains already built.
SERVICES:
Tender projects (Alternative) of structure and foundations and construction in general.
Technical Assistance.
DATE:
2007
CONSTRUCTION COST:
1.400.000,00€
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Client:
ANA – Aeroportos de Portugal
DESCRIPTION:
Provisory viaduct of access to construction of northern Pier of Lisbon Airport.
The works are about a metallic viaduct composed by a continuous frame of 6 pieces with span of 10.5 m adding a total length of 58 m. The deck, with about 7 m width, will be composed by a grillage of structural steel, type HEB, over which it is supported a pre cast slab in reinforced concrete with 0.18 m thickness.
The columns will be metallic with profiles HEB 600. Each column alignment will be braced by Angles.
SERVICES:
Process for Public Bid and Tender Project..
DATE:
2008
CONSTRUCTION COST:
290.000,00€
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There are no translations available.
Cliente:
EP - Estradas de Portugal
DESCRIÇÃO DA OBRA:
Esta obra permitirá o atravessamento do Ramo A+B sobre o IC2.
A estrutura das PS é constituída por um pórtico contínuo de 3 vãos com comprimento de 72 m. A plataforma do tabuleiro tem uma largura de 18.80 m.
O tabuleiro é constituído por uma laje com duas nervuras pré-esforçadas longitudinalmente com uma altura constante de 1.60 m.
O tabuleiro assenta sobre dois alinhamentos de pilares.
SERVIÇOS:
Estudo Prévio e Projecto de Execução.
DATA:
2008
VALOR DA OBRA:
724.685,00€
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