passerella olimpica torino, 2006 press-kit

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Official Press-kit for the Turin Olympic Footbridge 2006


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    Passerella 2006 Winter Olympics Turin Italy - HDA

    Introduction HDA

    Hugh Dutton Associs is a design consulting company formed in 1995. HDA is

    a team of architects and structural engineers who specialise in technical design services, in particular, for structural glass, steel structures, facades and architectural structures. HDA work as

    Architects Engineers Independent design consultants In collaboration with other architects as part of a design team

    HDAs offices are based in Paris, France and have experience working in Asia, the United States, and Europe. Hugh Dutton is a former director of Rice Francis Ritchie, and worked closely with Peter Rice from 1981 until his death in 1992, and co-authored Structural Glass, on RFRs work on cable structures and bolted glass. He taught at Columbia University and co-authored with Bernard Tschumi Glass Walls/Glass Ramps publication on the University student centre entrance hall. At RFR he developed the Rotule bolted glass system, now widely used worldwide, and worked closely with Peter Rice on RFRs principle projects between 1982 and 1995, such as: -La Villette Science Museum and Park footbridges and galleries -La Defense Grande Arche fabric clouds -Louvre Museum Inverted Pyramid -Japan Bridge La Defense -Citroen Cevennes Greenhouses -Charles de Gaulle airport Terminals 2F and TGV station

    Recent Projects: Projects Under Construction: Westlands Road Development, Hong Kong. Specialist Consultants for Office Tower Facades, lobby and canopies. (Arch. Wong & Ouyang) 2004 - New Acropolis Museum, Athens. Gallery for Parthenon Marbles, Archaic gallery and typical facades, Specialist Glass and facade consultants including facade energy studies for Greek Ministry of Culture. (Arch. Tschumi/Photiadis) 2002 - Lasalle School of Art, Singapore. Design and tender drawings for glass faades and fabric roof system. (Arch. RSP) 2004 Changi Airport, Terminal 3 Singapore. 4500 m cable net faade and 45000m conventional facades with bowstring truss mullions (Arch. CPG). 2000 2008 Changi Airport, Terminal 2 Singapore. 15000 m Canopies, Departure hall ceiling and faades. (Arch. RSP) 2002 - 2006 2006 Winter Olympic Games, Passerella, Turin Designers and structural engineers for competition winning entry for 400m cable footbridge. ( Arch. HDA ) 2002 - 2006

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    Passerella 2006 Winter Olympics Turin Italy - HDA

    AEM Urban Heating Facility, Turin, Italy. Anodized stainless steel toroidal facade screens(Arch. Buffi) 2002- Built Work : Construction 3 Pacific Place, Hong Kong. Entrance Hall Podium Specialist Facade advisor to Swire Properties ( Arch. Wong & Ouyang) 2001 2004 Drugstore Publicis, Champs Elyses, Paris. Facade glass screens, shopfronts & glass terraces (Arch. M.Saee.) 2001 2003 Pola Impressionist Museum, Hakone Prefecture, Japan. Glass structures, glass light wall and Bus shelter canopies. Specialist consultants. (Arch. Nikken Sekkei) 1995-2002 Aquarium, Kamogawa, Japan. Glass roof and tensile fabric.(Arch. Nikken Sekkei) 1995-2001 Public Transport station, Lausanne, Switzerland. Footbridge and glass boxes for lift and escalator covers. ( Arch. B. Tschumi/ Merlini) 1994 2001 Concert hall exhibition park, Rouen. Steel roof structures and toroidal faades, (Arch. Bernard Tschumi) 1998 - 2001 Inchon International Airport, Seoul, Korea. Long Span Roof Structures, Faades and canopy (Arch. KACI of KBHJW Consortium and Fentress) 1996 - 2001. Osaka Maritime Museum, Japan. 73m glazed dome structure. (Arch. P. Andreu) 1994 - 2000. Lerner Student Centre, Columbia University N.Y. Suspended glass wall and glass paved ramps. (Arch. Bernard Tschumi) 1996 - 1999 St. Gobain Research Facility renovation at Aubervilliers, France. Suspended glass and experimental panel north facade. Joint competition winners, design and specialist consultants. (6 M FF, Arch. Odile Decq/Benoit Cornette). 1997 - 1999

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    Passerella 2006 Winter Olympics Turin Italy - HDA

    Passerella 2006 Winter Olympics, Turin, Italy

    Hugh Dutton

    Competition The city of Turin hosts the 2006 winter Olympic games and has embarked on an extensive programme of construction of various venues and infrastructure for the games. The city took advantage of the infrastructure programme to incite urban renewal in the southern part of the city that has been affected by the economic downturn in the car industry. The Olympic village, situated in the disused Mercati Generali in the Lingotto district adjacent to the main railway lines entering the city from the south, is part of this new infrastructure and will contain housing and a logistics centre. An open competition, hosted by the client body, Agenzia 2006, was held to select a design for the village in 2002 that included in its brief a footbridge link to the recently completed Lingotto commercial centre situated in Fiats disused factory.

    The winning design for the village, by a consortium of specialist architects and engineers co-ordinated by Benedetto Camerana, proposed the refurbishment of the Mercati halls as the main communications and logistic centre. The footbridge link, by Hugh Dutton Associes (HDA), was exploited to provide a symbolic focal point for the entire village as well as provide a more ambitious role of a sculptural symbol, both for the Olympic Games and to represent the dynamism of the changing citys regeneration of the Lingotto area beyond and after the event of the games. After the games, the Olympic Village housing will be available for the citys residents and the logistics centre will provide shops and general facilities to encourage commercial and cultural activities in the area. The footbridge will provide a much needed direct access to and from the facilities of the Lingotto centre across the railway tracks that cut the city in two.

    Aerial view showing proposed footbridge link between Mercati and Lingotto



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    Passerella 2006 Winter Olympics Turin Italy - HDA

    Programme The footbridge provides a 365m link, 4m wide, between the main Mercati central gull-wing hall and the existing parking access footbridge on the Lingotto development with a free span of 150m over the railway tracks. It is destined for pedestrian and bicycle traffic. The safety considerations with regards to the railway have a major impact on the design and realisation of the bridge. Strict time limitations were given to ensure that construction procedures did not interfere with or provide any danger to railway traffic. A 2.5m high protective barrier, of which the lower 1m must be solid and the remaining 1.5m above in safety netting, is to be provided above the railway tracks for pedestrian safety and to prevent objects from falling on the tracks. The railway tracks are electrified and therefore the acceleration of corrosion of the steel components, notably in the foundations, due to residual electricity in the damp earth is an important consideration. All activities over the tracks during construction and future maintenance are subject to specific safety constraints. The engineering design is required to be in compliance with the railway design codes of practise as well as both European and specific Italian design codes.



    HDAs design philosophy is that the architectural composition should find its logic in structural expression. We believe aesthetic pleasure is found in feeling the dynamism of structure and in the intuitive satisfaction of understanding the passage of forces. Like the beauty we find in an atheletes body in a position of extreme effort with muscles taut. We consider this a fitting and appropriate approach for a monument to the Olympic Games. There is nothing superfluous in the design, only the minimum necessary to make it work. Lean and economical, the architecture is a composition of functioning structural parts. The beauty is in the energy of the structural athleticism and how it resolves the forces through elegant curves and the complex geometry of the suspension cables.

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    Passerella 2006 Winter Olympics Turin Italy - HDA

    Market Hall before transformation & the first sketch of the footbridge by Hugh Dutton The parabolic arch, inspired by arch framing of the existing Mercati halls by the architect Cuzzi in 1932 is an optimal structural form - the supported loads travel to the ground in pure compression. Traditionally, arches are stabilized by the masonry they carry as these serve to provide geometric stability, keeping the compression rim in its plane. In the case of the Passerella arch the suspension cables carry out the same stabilizing role, preventing it from buckleing. The concept is made clearer for the passerella arch and its cables if we consider their performance as analagous to a bicycle wheel. The rim supports the weight of the bicycle and its rider through the thin wire spokes that connect it to the axle. The spokes, by both their radial geometry and sectional triangular configuration, can resist considerable loads and remain stable. The rim is in pure compression and the spokes are in pure tension. The curved parabolic shape is adapted to optimise the path of the compression forces so as to reduce bending loads in the section.

    At 70m high, the arch gently leans over the tracks so as to optimise the geometrical configuration of suspension cables, its height governed by the critical angle of the longest ones. The arch also leans laterally slightly to optimise the plan angle of the suspension cables with respect to the steel deck as its curved path swings from the central axis of the Mercati gull wing hall toward its destination of the existing Lingotto elevated walkway. Beyond the symbolic role of the bridge f