La Hearst Tower revive un sueño del magnate editorial William Randolph Hearst, quien, en la década de 1920, imaginó Columbus Circle como un nuevo distrito de medios de comunicación ubicado en Manhattan. Hearst encargó erigir un edificio de seis plantas y estilo art déco en la Octava Avenida y, así, anticipó que con el tiempo se convertiría en la base de un rascacielos. Al igual que con los proyectos del Reichstag y el Gran Patio del British Museum, el desafío a la hora de diseñar una torre de estas características 70 años después estribaba en establecer un diálogo creativo entre lo nuevo y lo antiguo.

La nueva torre se eleva por encima del viejo edificio hasta alcanzar una altura de 44 plantas y está unida en el exterior mediante una falda de vidrio que transmite la sensación de que la torre flota ingrávida sobre la base. A los pies de la torre, el principal rasgo espacial es un vestíbulo que ocupa todo el tramex del antiguo edificio y se eleva seis plantas. A modo de animada plaza de pueblo, este espectacular espacio proporciona acceso a todas las zonas del edificio. Alberga el vestíbulo principal de ascensores, la cantina del personal de la torre, un auditorio y niveles en entreplantas para reuniones y funciones especiales. La torre presenta una forma de estructura de rejilla triangular, una solución muy eficaz que utiliza un 20% menos de acero que una estructura con armazón convencional. El hecho de tener las esquinas recortadas entre diagonales le confiere una característica silueta facetada que la hace destacar en el perfil urbano de Manhattan.

El edificio destaca también en términos ambientales. Se construyó utilizando un 85% de acero reciclado y su sistema de calefacción y refrigeración emplea aire natural para la ventilación durante nueve meses al año. Además, consume un 25% menos de energía de la que habría consumido en caso de haber aplicado con rigurosidad las normativas estatales y municipales vigentes. Así, se convirtió en el primer rascacielos de oficinas de Manhattan catalogado con la estrella de oro según el programa Leadership in Energy and Environmental Design (LEED) del US Green Building Council. El proyecto Hearst valora la calidad del lugar de trabajo y considera que este aspecto cobrará mayor importancia para el personal en el futuro. De hecho, es de esperar que esta experiencia sea el preludio de la construcción de edificios más respetuosos con el medio ambiente en la Gran Manzana.

Bocetos y dibujos

Desarrollo

Construcción

Sostenibilidad

Site + Climate

The building envelope was designed to limit glare from low angle sun during the early morning and evenings.

Form + Massing

The massing was predetermined by the footprint of the existing Hearst building. The design of the tower, sought to protect the existing podium, whilst extending the building with a distinctive new tower.

Passive Design

To minimise solar gain, the building envelope contains high performance low emission glass, with integral roller blinds which can be used to reduce glare. The building is naturally overshadowed by the surrounding buildings so large skylights were used at the podium level to bring daylight into the atrium space.

Environmental Systems

The atrium contains a radiant floor, a tempered water wall and temperature controlled walls. In the office spaces, an economiser cycle on the AHUs provide fresh air ventilation for 75% of year.

Mobility + Connectivity

The design included an upgrade to the local subway station, and reinstated an entrance within the building, giving employees direct access to public transport.

Materials + Waste

The diagrid structure uses 20 per cent less steel than a conventionally framed structure, and it was built using 85 per cent recycled steel. Locally sourced materials are used throughout.

Water

Harvested rainwater from the roof is fed into a central tank and used for irrigation and to feed the water feature. This, alongside water efficient fixtures and fittings, has led to a 30% reduction in water usage compared to a typical building.

Land + Ecology

The design ensured that all existing trees on site were protected, and to ensure their long term vitality, they are now irrigated through the rainwater harvesting system.

Culture + Heritage

The design preserved the façade of the existing structure and establishes a creative dialogue between the old and new. The forty-two-storey tower rises above the old building and has resulted in an award winning addition to the New York Sky Line.

Wellbeing

At the base of the tower, there is a large atrium space for the building users. A water feature helps enhance the microclimate by thermally tempering the space, providing acoustic dampening and humidity control. Daylight floods the space through high level sky lights, helping to create a healthy, vibrant space.

Prosperity

Local construction firms were chosen where possible, to enhance the local economy. In operation, the building has helped to regenerate the surrounding area.

Performance in Use

First LEED Gold commercial office building in New York. Since completion it has gone on to achieve LEED Platinum for its operation and maintenance.

Citas

Foster + Partners delivered our headquarter building on time and on budget. The success of the building is the result of a close and inspiring collaboration between the Hearst Corporation and Foster + Partners.”Brian G. Schwagerl

Vice President - Real Estate & Facilities Planning

Norman has a feel for what it is your business does. The dialogue is often not about architecture

but how does your business function, and how do people live in the space”Frank A Bennack Jnr, (former) Hearst Chief Executive

In an uncertain age the Hearst Tower is deeply comforting: a building with confidence in its own values.”Nicolai Ouroussoff

NY Times 09/06/06

When the Hearst people chose Foster

they knew they were getting an international star. Still, they might not have suspected he would give them the best building to appear in New York City in decades”Richard Lacayo, Time 15/05/06

Datos y cifras

  • Adjudicación: 2000
  • Finalización: 2006
  • Superficie: 79 500m²
  • Altura: 182m
  • Capacidad: 2200
  • Cliente: Hearst
  • Colaborar Arquitecto: Adamson Associates
  • Ingeniero estructural: The Cantor Seinuk Group
  • Supervisor de cantidades: Turner Construction
  • Ingeniero de M+E: Flack & Kurtz
  • Ingeniero de iluminación: George Sexton and Associates
  • Consultores adicionales: Higgins and Quasbarthm, VDA, Cerami, Ira Beer Assocates, Steven Winter Asssociates, Tishman Speyer Properties, Turner Construction

Premioss

  • International Highrise Award
  • Chicago Athenaeum International Architecture Award
  • Green Building Competition for New York City, Honourable Mention
  • ‘XVI Concorse Internazionale Sistema d’Autore Metra 2008’
  • Council on Tall Buildings and Urban Habitat (CTBUH) Best Sustainable Building Award
  • BCI Awards – International Award,
  • Business Week/Architectural Record Citation for Excellence
  • RIBA International Award
  • Archi Tech AV Awards – Best Project over $1,000,000,
  • The Greater New York Construction User Council Outstanding Green Project Award
  • New York City MASterwork Awards – Best New Building,
  • AIA New York Design Honor Award in the Architecture category
  • Emporis ‘Best New Skyscraper of the Year for Design and Functionality’
  • Build New York Awards – Winner New Project,
  • Global Green USA Green Building Design Award
  • Wallpaper 2004 Design Awards – Winner Best Building Sites,

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