Civil & Structural DepartmentEngineering

SYSTRA is a consulting engineeringcompany dedicated to the optimi-sation of transportation systemsworldwide.

Within SYSTRA, the Civil and Structural Engi-neering Department provides the following services to clients:• Identification of the optimum solutions fortheir projects: construction and maintenanceprocesses, construction methods. Provides thebest quality structures with respect to cost efficiency, construction speed and schedule,integration into the environment, considera-tion of maintenance and safety requirements;• Performance of the relevant studies;• Selection, training, and mobilisation of spe-cialised staff to address projects needs;• Control of design and works quality;

• Assistance to the project owners for prepara-tion of tender dossiers and tender evaluation;• Assistance to the construction companies forbid preparation: research and development of optimum and cost effective alternative solutions;• Development and maintenance of stronglinks with SNCF (French National Railways) andRATP (Paris Transport Authority), as well aswith the engineering community in order tokeep up-to-date on state-of-the-art designcapabilities worldwide.The department is ISO 9001 certified since1998.

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CONTENTSProjects• High Speed Rail lines 2• Conventional Rail lines 4• Urban transportation: mass transit, tramway,

light rail transit (LRT), automated guideway transit (AGT), intermodal exchange nodes 4

• Road bridges 6• Assessment, rehabilitation

and maintenance of existing networks 7

Expertise• Bridges and viaducts of all types 8• Cuts and fills 9• Underground works 9• Geotechnics 11• Stations 11• Depots 11

Services 12

Zoom• The U-shaped viaduct 14• Focus on the viaduct

of Santiago Metro line 4 15

CLIENTS (PUBLIC AND PRIVATE SECTORS)• Public authorities, project owners• Construction companies• Private companies for concession projects…

DIRECTORY. Gauthier

EXPERT CONSULTANTDIRECTOR D. Dutoit

QUALITYCoordination-Management-C.A.D.

CAD OFFICE

FUNCTIONAL ARCHITECTURE

SUPERSTRUCTURESS. Montens EARTHWORKS UNDERGROUND WORKS

100 persons based at the head-office and a number of engineers, on medium and long term assignments abroad.

Yves GauthierDirector of the Civil and Structural Engineering Department.Engineer of École Centrale in Lyons and Centre des Hautes Études de la Construction in Paris.Registered Professional Engineer in the United States – Florida and Louisiana.

Civil & Structural DepartmentEngineering

projects

High Speed Rail linesSYSTRA has been involved in civil engi-neering projects for High Speed Rail(HSR) lines for more than 20 years.

High Speed Rail line Beijing - Tianjin (China) (since 2005)Technical assistance for a 115 km line (designspeed 350 km/h) : review of conceptual design,detailed studies, review and constructionsupervision (in partnership).The line comprises 100 km of bridges and viaducts, and 15 km of embankments.The bridges are made of prestressed concreteand are erected by full span precast method(FSPM) for spans up to 33 m; cast in place for40 m spans, and built by balanced cantilevermethod for continuous structures (up to60+100+60 m).

High Speed Rail line Guangzhou - Wuhan: Tianxingzhou Bridge (China) (since 2004)Design control and management of the worksupervision for a 4657 m bridge with a 504 mcable stayed main span. Double level deck: 4 railway tracks at the lower level and 6 roadlanes at the upper level.

High Speed Rail line (passengers andfreight) Perpignan - Figueras (France-Spain)(since 2004)Technical assistance to the Concessionaire:design follow-up, review and assessment(civil works including earthworks) and sitesupervision.Independent expertise of the project at therequest of the Intergovernmental Commis-sion.

High Speed Rail line Beijing - Shanghai (China) (2004)Technical assistance and design review, especially dynamic design and rail-structureinteraction analysis.

High Speed Rail line between the Channel Tunnel and London, CTRL (United Kingdom) (since 1996)As part of Rail Link Engineering (RLE):• Setting of the specific design criteria for HighSpeed Railway bridges;• Participation in the detailed design of theMedway viaduct, and shop drawings with theContractor. The Medway viaduct is made up of2 access viaducts of 360 m and 480 m respecti-vely (prestressed box girder incrementallylaunched) and one precast segmental centralviaduct of 95+152+95 m (balanced cantilevermethod);• Review of the preliminary design for 37 struc-tures (concrete viaducts, steel bridges andcomposite bridges);• Conceptual and construction design for the 7 km crossing of a marshy section at the Lon-don approach by a piled slab.

Earthworks for the C220 contract, Taiwan HSR Moam 2 truss bridge, Korean HSR

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Moam 1 bowstring bridge, Korean HSR

Piled slab, CTRL, UK (as part of Rail Link Engineering) Full Precast Span Method, Korean HSR

Warren Truss bridge for the C230 contract, Taiwan HSR Launching of Moam 2 truss bridge, Korean HSR

High Speed Rail line Taipei - Kaohsiung(Taiwan) (since 1990)• Preliminary design (design speed 350 km/h);• Detailed design of the typical structures;• Dynamic analysis, passenger comfort study,rail-structure interaction analysis;• Preliminary design of special structures(Tsoyin cable stayed bridge with 4 HSR tracks);• Since 1999, part of IREG (International Rail-way Engineering Group), for independentreview of construction design and work super-vision including:- 270 km of bridges, including various precastprestressed structures, cast in situ, built bymobile scaffolding system, built by balancedcantilever method as well as composite struc-tures (long span truss bridges incrementallylaunched or assembled on scaffolding, twin-beam bridges…);- 45 km of tunnels;- 30 km of cut and fill earthworks;- 6 new stations;- 5 depots.

High Speed Rail line Teheran - Esfahan - Qom (Iran) (2002)Review of conceptual design for one section,and validation of criteria used for the sectionof the line already built.

High Speed Rail line Seoul - Pusan (South Korea) (1994-2004)• New conceptual design (design speed 350 km/h);• Optimisation of the longitudinal profile;• Typical and special bridges (built on scaffol-ding, by mobile scaffolding system or bybalanced cantilever method) and closurespan (total length of structures: 131 km)- Review of detailed and construction designof the structures;- Further to this review, full updating of thedesign (up to shop drawings) resulting in:structures standardization, quantities optimi-sation (- 30 % of reinforcement), constructionduration reduced by half, improvement ofthe constructibility;• Preliminary, detailed and constructiondesign of steel composite structures: Moam

Bridges (125 m span bowstring bridge rotatedover the main Korean motorway and 65 mtruss bridge incrementally launched above amotorway), twin girder composite bridges.Construction supervision;• Preliminary and construction design of a 90 mspan erected by balanced cantilever method(longest concrete span of the line);• Preliminary design and construction designreview of the structures built by Full PrecastSpan Method (25 m span, 600 t, and totallength: 22 km). Construction supervision;• Earthworks and tunnels analysis (involved inthe detailed design of a 17 km tunnel);• Construction supervision of 3 sections: morethan 30 km of line including 21 bridges andviaducts, 6 tunnels, many cut and fill struc-tures;• Rail-structure interaction and passengercomfort calculations;• Preparation of functional and architecturalspecifications for the stations. Detailed reviewof the design of some stations (including vibra-tion analysis).

Viaduct and tunnel of the C220 contract, Taiwan HSR

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Medway viaduct, CTRL, UK (as part of Rail Link Engineering)

projectsBreaking out of a Tunnel Boring Machine, line B of VAL, Toulouse, France

Conventional Rail lines (with passenger-freight trains)

North South Railway line (Kingdom of Saudi Arabia) (since 2004)Conceptual and detailed design of the struc-tures of a 2500 km passenger-freight line.

Courbessac viaduct (France) (since 2004)Management and engineering of the civilworks for the crossing of a railway line (600 mviaduct and 160 m open cut).

Tangiers - Ras R’mel railway line (Morocco) (since 2003)Setting up and monitoring of the geologicalcampaign, geotechnical recommendationsand preliminary design of the layout for a 44 km freight line.

Tunnel for the line La Encrucijada - Puerto Cabello, Venezuela

Taourit - Beni Anzar railway line (Morocco)(since 2003)Setting up and monitoring of the geologicalcampaign, geotechnical recommendationsand preliminary design of the layout for a 110 km freight line.

La Encrucijada - Puerto Cabello railway line (Venezuela) (since 2002)Design and construction supervision for a 130 km line with 8 stations, 33 km of tunnels,22 km of bridges and viaducts and 75 km oftrackbed.

Accesses to Jamuna bridge (Bangladesh) (1997-2003)Preliminary design, detailed design and cons-truction supervision of 60 bridges.

Urban transportation

MASS TRANSIT - TRAMWAY

Algiers Metro (Algeria) (since 2003)Design and construction supervision of the lastsection of the first metro line of Algiers: 4.6 km of line and 5 underground stations.

Delhi Metro, line 3 (India) (since 2002)Preliminary and construction design for theelevated section (21 km of U-shaped viaduct)and for a cut and cover section (0.5 km), inclu-ding 20 elevated and 1 underground stations.Setting up of the tender dossier and construc-tion supervision.

Santiago Metro, lines 4 and 5 (Chile) (1991 -2004)Preliminary, detailed design and constructionsupervision for 7+6 km of U-shaped viaduct.

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Deck erection, Delhi Metro line 3, India

B+M Architecture

Courbessac viaduct, France

Dubai Metro, United Arab Emirates

Viaduct, Santiago Metro line 4, Chile

Mulhouse Tram-Train (France) (since 2002)Project design, preparation of the tender dossier, evaluation of bidding and construc-tion supervision for 4 bridges.

Esfahan Metro (Iran) (2002)Preliminary design of the tunnels and stationsof the first metro line.

Rocade Grand Tram, Greater Paris (France)(2001 - 2002)Feasibility study of the bridges for a tramwayline involving crossing over of existing roads.

Shenzhen Metro (China) (1999 - 2003)Preparation of the tender dossier, evaluationof bidding and construction supervision for 3 tunnel sections bored with TBM.

Bordeaux Tramway (France) (since 1997)Project management and engineering for thedesign and construction of the light rail net-work with 3 lines of 44 km and 84 stations.

AUTOMATED GUIDEWAY TRANSIT

Dubai (United Arab Emirates) (since 2003)Preliminary and conceptual design, prepara-tion of the tender dossier and evaluation ofbidding for 2 automated lines.• Red line: 52 km, 26 elevated stations and 4 underground stations including 2 transferstations with the Green line. • Green line: 17.6 km, 8 underground stationsincluding 2 transfer stations.Supervision of the design and construction(partnership).

Gimhae Metro (South Korea) (since 2003)Construction design of the viaduct (compo-site steel box girder; total length: 23.5 km, 18 stations).

Toulouse VAL (France) (since 2000)Engineering for the construction of thesecond line of the network: line B, 15 km and 20 underground stations.

Turin VAL (Italy) (since 2000)Preliminary studies, preliminary design, detail-ed design and construction supervision for line 1 and its extensions (total length: 29 kmmainly underground).

Neihu Line, Taipei (Taiwan) (2001 - 2002)Preliminary studies and preliminary design forthe Mucha Line (VAL) extension (11 km viaduct).Consultant for the detailed design: U-shaped1-track deck built by Full Precast Span Method.

Rennes VAL (France) (1991 - 2002)Project management and engineering for thedesign and construction of the civil works andequipments (not relevant to VAL system).

Lille VAL (France) (1978 - 2000)Project management and engineering for thedesign and construction of the civil works andequipments (not relevant to VAL system) ofthe 2 lines (45 km mainly underground).

Elevated station, Santiago Metro line 5, Chile

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Public transport in dedicated right of way, Toulouse, France Neihu Line viaduct, Taipei, Taiwan

projectsKeong An bridge (arch project), Korea

Road bridges

Tianxingzhou bridge (China)(since 2004)Design control and management of the worksupervision for a 4657 m bridge with a 504 mcable stayed main span. Double level deck: 4 railway tracks at the lower level and 6 roadlanes at the upper level.

Ulsan bridge (South Korea) (2004)Preliminary study and preliminary design for aconstruction contractor of a 2794 m motorwaybridge across Ulsan harbour, which includes a400 m cable stayed span.

Janghang bridges (South Korea) (2003)Preliminary design for a construction contrac-tor of the main bridges of Janghang 1 andJanghang 2 (span: 120 m).• Preliminary design for Janghang 1 bridge:double deck extradossed bridge;• Review of the detailed design for Janghang1 and Janghang 2 bridges (wide twin girdercomposite deck);• Advice on specific construction processes.

Okjung bridge (South Korea) (2003)Preliminary study and preliminary design fora construction contractor of a 320 m compo-site bridge (main span: 62 m). Detailed designreview.

Pusan New Harbour bridge (South Korea)(2002)Preliminary study and preliminary designreview for a 1780 m viaduct crossing PusanNew Harbour. The viaduct is made of compo-site structures and a cable stayed central spanof 129 m with a single mast.

Keong An bridge (South Korea) (since 2001)For a construction contractor: conceptualdesign, basic design, detailed design and shopdrawings of an extradossed motorway bridge(width: 30 m; span: 130 m). Assistance duringconstruction.

Aswan bridge (Egypt) (1995)Conceptual design and detailed design of acable stayed bridge (250 m central span) abovethe Nile River (partnership).

Aswan bridge, Egypt Janghang 1 motorway bridge, South Korea

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B+M Architecture

Oum Er Rabia bridge, Morocco Hai Van Pass railway tunnel, Vietnam

Railway tunnel on the Belgrade-Bari line, Montenegro

Hara Dara viaduct, Aleppo-Midan Ekbas line, Syria

Assessment, rehabilitation andmaintenance ofexisting networks

SYSTRA performs assessments of rail-way networks worldwide, togetherwith proposals for their renovationand maintenance.

Hai Van Pass tunnels (Vietnam) (since 2000)Renovation works of four single track tunnelsunder operation; diagnosis, design andmethods of repair works, preparation of thetender dossier, evaluation of bidding andconstruction supervision.

Moroccan Railways (since 2003)Diagnosis and assessment of 14 railway struc-tures. Preparation of the overall maintenancemanual for Moroccan Railways.

Belgrade - Bari line (Serbia - Montenegro)(2001 - 2004)Technical assistance to Montenegro Railwaysfor the preparation of the tender dossier forthe renovation of tunnels and bridges, andstabilisation of slope slidings.

POLT – Paris/Orléans/Limoges/Toulouse(France) (2002)Preliminary design for the removal of 11 levelcrossings of the railway line Paris - Orléans -Limoges - Toulouse.

Senegal(2001 - 2002)• Conception, supervision and project mana-gement for upgrading of the railway lineDakar - Thiès - Tivaouane;• Track renewal between Tambacounda andKidira, upgrading of bridges.

Dakar - Bamako Line (Mali) (2001)Detailed design and preparation of the tenderdossier for the upgrading of two railway bridges.

Chilean Railways(1996)Diagnosis and preparation of a proposal forremedial works of 200 bridges and of the rele-vant terms of reference for their maintenance.

Tunis - Gabes Line (Tunisia) (1994)Inspection of 62 bridges, repair procedures,preliminary and detailed rehabilitation pro-ject, assistance for the preparation of the tender dossier and contract award.

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Viaduct on the Belgrade-Bari line, Montenegro

expertiseStudy of a particular detail of a steel structure Bridge 3D analysis - Rail-structure interaction Earthworks on the C220 contract, HSR Taiwan

Bridges & viaducts

DesignThe Civil and Structural Engineering Depart-ment uses reputable software to perform static, dynamic and seismic analysis for alltypes of structures (superstructures and foun-dations).

Particular studiesIn addition to the standard studies, the Civiland Structural Engineering Department carries out studies related to the particula-rities of railway structures:• All kinds of rail-structure interaction analyses;• Passenger comfort studies by combiningstructures with rolling stock;• Dynamic studies to determine the actualdynamic factors;

• Noise and vibration studies.These particular studies are carried out with in-house developed software.

At the heart of the civil and structural designArchitecture: for the best integration of thestructures in the environment Construction methods: for construction dura-tion reduction and minimisation of nuisanceCost effectivenessSystem integration

2xD1

2xD2

McIc

Ks Cs

Kp Cp

MbIb

Stress variation in rails Finite elements analysis of a U-shaped deck

Interaction between bridge structure,bogies and body of wagon

Earthworks for the railway line La Encrucijada - Puerto Cabello, Venezuela

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Cuts and fills

The Civil and Structural Engineering Depart-ment studies in particular:• Linear backfill integration into the environ-ment;• Track alignment;• Stability and reinforcement of slopes andembankments;• Retaining structures;• Drainage systems.

Undergroundstructures

TUNNELS AND CUTSDuring the past 40 years SYSTRA hasbeen involved in many projects world-wide, from the first step of the concept upto the construction supervision. Duringthese very varying contracts, SYSTRA hasaccumulated experience and proficiencyin the field of underground works engi-neering.

TBM - Shenzhen Metro, China

Conception of complex projects• Full conception of transport systems;• Conception of complex multimodal exchangenodes;• Optimization of tunnel transversal sections.

Integration into sensitive environmentsSYSTRA has played a part in the conception ofmany projects in congested urban surroun-dings where environmental care is a majorconcern:• Conception of transport systems in majorcities including historical and archaeologicalsites;

• Integration of construction sites in denseurban areas with heavy road traffic;

• Construction in the vicinity of or under tracksin operation.

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Tunnel opening into a station - Turin VAL, Italy

Cut, Algiers Metro, AlgeriaCut and cover, line B of VAL, Toulouse, France

expertiseLongitudinal geological profile Slope stability calculation of a railway embankment, Beijing-Shanghai HSR

Construction methodsConstruction methods have to conform toconstraints and site conditions. Selection ofthe suitable method is a governing factor inthe project achievement. SYSTRA has a greatdeal of experience in the appropriate cons-truction methods for underground structures:• Open cut and cut and cover;• Conventional mining methods for construc-tion of linear tunnels or stations;• Tunnel Boring Machines -TBM- (open, earthpressure balance, slurry shield and compres-sed air);• Particular construction methods: under-water tunnel by sunk caissons, forepoling,underpinning, soil treatments.

Intervention on existing underground structures• Maintenance programmes for tunnels andunderground structures;• Repair and rehabilitation of operatedunderground structures.

Main references

China Canton Metro line 1, Shenzhen Metro lines 1 and 2

Taiwan Taipei Metro, Mucha, Hsintien and Chungho lines

Egypt Cairo Metro, lines 1 and 2 Algeria Algiers Metro, line 1Greece Athens Metro, lines 1 and 2Turkey Railway line Divrigi - IskenderunFrance Paris - Orlyval

Lille VAL, lines 1, 1A and 2Toulouse VAL, lines A and BRennes VAL, line 1.

Prediction of the settlements induced by the tunnel excavation Integration of an underground station in a dense urban area

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Dubai Metro elevated station, United Arab Emirates Santiago line 5, Chile (partnership with CADE-IDEPE) Santiago Metro line 4, Chile (partnership with CADE-IDEPE)

Geotechnics

• Tunnel and slope calculations• Longitudinal geological profileSoil studies (including borings and tests super-vision) and soil treatment (compaction, drai-nage, injection).

Stations

Fields of cooperation:Assistance to the Project Owner• Assistance for project planning;• Definition of constraints: geological, urban,technical and functional;• Standards, safety and statutory regulation;• Comfort criteria and operational needs.

Engineering and project management: conception of functional architecture• Integration of structures and accesses intothe urban environment;• Coordination of operational needs andcompliance with the regulations in force;• Functional conception of public and techni-cal areas;• Collaboration with architects for the aes-thetics.

Depots

Integration into the civil works of the opera-tion and system constraints.

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Cross section of a Metro station - Hanoï, Vietnam Intermodal exchange node - Shanghai, China Shastri Park depot - Delhi Metro line 1, India

The Civil and Structural EngineeringDepartment is involved in all the stages of the

projects

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Feasibility study

Studies / Concept review / Methods

Preliminary design

Detailed design

Studies and construction methods

Preparation of tender dossier

Evaluation of bidding

Supervision of construction design

Construction supervision

Diagnosis of existing structures

Design and supervision of remedial works

Moscow-St-Petersburg HSR, Aleppo-Damascus Line, Rocade Grand Tram

Seoul-Pusan HSR, Taipei-Kaohsiung HSR, Beijing-Shanghai HSR, Tianxingzhou bridge

Esfahan Metro, Dubai Metro,Many road projects

Santiago Metro lines 4 and 5, Turin VAL, Dubai Metro

Delhi Metro line 3, Keong An road bridge, Seoul-Pusan HSR, CTRL

Dubai Metro, Shenzhen Metro, Hai Van Pass tunnels

Dubai Metro, Shenzhen Metro, Hai Van Pass tunnels

CTRL, Algiers Metro, Venezuela Railway, Tianxingzhou bridge, Dubai Metro

Shenzhen Metro, Rennes VAL, Toulouse VAL, Turin VAL, Seoul-Pusan HSR, Dubai Metro

Railway networks in Morocco, Gabon, Montenegro, Chile

Railway tunnels in Vietnam, Network in Montenegro

services

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Standard solution and U-shaped viaduct Reduction of visual impact and rail level U-shaped viaduct through a station

The U-shaped viaduct

An effective response to urbandevelopment needs

The U-shaped viaduct is the result of astudy conducted by SYSTRA experts ofvarious skills, intended to design an economical structure, including all the system components in a practical way,considering both installation and maintenance.

MAIN ADVANTAGES OF THE SYSTEM• Optimised integration into the urban envi-ronment (visual impact reduced by half);• Built-in sound barrier;• Built-in cable support and system functions;• Possibility of lowering the longitudinal profile by 1.5 to 2 metres compared toconventional design;

• Most of the station structure is the viaductitself;• Possibility of lowering the station buildingsby 1.5 to 2 metres, therefore escalators can beremoved;• Built-in structural elements capable of main-taining the train on the bridge in case ofderailment (a standard sound barrier does notallow this);• Integration of the walkway for maintenanceand passenger evacuation on each side of the tracks;• Cost reduction from both structural and system point of view;• Flexibility of the construction scheme (pre-cast beams and cast in situ slab, precast segmental construction, cast in situ construc-tion, full precast span method);• Erection speed, flexibility of constructionstarting points along the line.

MAIN PROJECTS DESIGNED BY SYSTRA• Guangzhou Line 2 (China);• Neihu Line in Taipei (Taiwan);• Santiago Lines 4 and 5 (Chile);• Delhi Line 3 (India);• Dubai Metro (United Arab Emirates).

zoom

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Launching girder System integration in the viaduct

Focus on the viaduct ofSantiago Metro line 4

The U-shaped viaduct is 7 km longwith 6 stations. The standard spanlength is 35 m.

The deck is made of precast segments jointedtogether with a gantry. The erection outputreaches one span per day.This construction method permits the perfectfollowing of the track layout, thus improvingthe aesthetics compared to a straight spansolution with viaduct angles on each pile.

The viaduct crosses the stations as in standardsections, thus avoiding any constraint asso-ciated with the construction of the stations.Deck construction started in March 2004 andwas completed in September 2004, as a resultof the simultaneous use of three launchinggantries. Standard segments are 3.5 m longand weigh 37 t.

The viaduct deck supports the two tracks ofthe metro whose axle load is 16.5 t. The cons-truction cost of the viaduct is USD 5500/lmincluding foundations.

Santiago is a highly seismic area.

Rolling stock on the viaductSegments assembly

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5, avenue du Coq - 75009 Paris - FRANCE - Tel: +33 (0)1 40 16 61 00 - Fax: +33 (0)1 40 16 61 04e-mail : systra@systra.com - Web: www.systra.com

Civil & Structural Engineering Department: +33 (0)1 40 16 65 27 - e-mail: gcoa@systra.com