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The Atrium in Victoria, B.C. by D’Ambrosio Architecture + Urbanism

Tuesday, May 1st, 2012

Article source: D’Ambrosio Architecture + Urbanism

The Atrium, a high-density mid-rise office building set in a transitional area of downtown Victoria, challenged its architects: how can a speculatively-built office building revitalize a moribund area and enrich the community at large? How can the economics of high-density, downtown office buildings work in a mid-rise, green-building form?

Photo © silentSama

  •  Architects: D’Ambrosio Architecture + Urbanism
  • Project: The Atrium -Victoria, B.C.
  • Location: Victoria, B.C.
  • Client : Jawl Investment Corp.
  • Software used: Vectorworks CAD predominantly, as well as Sketch-up professional and photoshop. The architects built many physical models of wood and paper board.The wood trusses and the concrete superstructure of the building were both computer modeled (dynamic models to test behavior during seismic events) by the fabricators ‘Structurecraft’ and ‘Stantec’ respectively.
  • Project Manager:  Jawl Properties Ltd.
  • Structural Engineer: Stantec Consulting
  • Civil Engineer: Genivar Consultants Ltd
  • Landscape Architect: Murdoch DeGreeff Inc.
  • Photos: silentSama, D’Ambrosio Architecture + Urbanism

Occupying the length of a city block, the Atrium actively engages its civic context. To complement Victoria’s historical downtown, and reintegrate the block into its urban fabric, the building takes a mid-rise form, built to the street walls to give definition to the public realm. The building’s palette of natural, durable materials invests the district with a welcome sense of commitment.

Photo © silentSama

A transparent ground floor houses cafes and restaurants, inviting people to approach, look in, and stay a while. Rain gardens edge the site, a first for a private development in Victoria, catching and cleaning polluted street run-off, and softening the cityscape.

Photo © silentSama

A seven-storey atrium introduces daylight into the heart of the structure, and maximizes the use of wood in non-combustible construction. The wood, visible from the street through a seven-storey glass wall, distinguishes the atrium from the surrounding offices, and invites the public to animate this urban room. Community groups have taken up the invitation, using the atrium to host such events as an opera performance and a film festival reception.

Photo © silentSama

To create a more animated urban space, the project team commissioned an artist to design an installation for the atrium.  This installation treats the atrium floor as a canvas for an abstract mosaic. The work is derived from the building’s lines and uses local marble tiles. Wood sculptures complement the mosaic’s lines, and provide places to sit.

Photo © silentSama

Overhead, innovative wood trusses support a 7,200 square-foot skylight.  Panelized hemlock slats follow the sweep of the atrium’s curving walls, and tongue and groove cedar soffits bring warmth and definition to the building’s street level. The family-owned company that commissioned the building ran one of the first lumber companies on Vancouver Island, a history that enriches the meaning of using wood in the atrium.

Photo © silentSama

The atrium not only serves as a public room, but it acts as a return air plenum in the building’s highly efficient displacement ventilation system. Conditioned air is delivered near the floor, so the air requires less cooling. Convection draws the air to heat-generating occupants and equipment, where it’s needed. As the air warms, it rises naturally to exhaust through the ceiling. Displacement ventilation uses less energy to deliver higher quality air more quietly, and is a key component in the building’s LEED Gold-targeted environmental strategies.

Photo © silentSama

A primary ambition for the Atrium was to create a building that will endure, and that will earn the regard of people who will help it to endure. In doing so, the Atrium gives weight to urban fit, sustainability, and occupant well-being as well as to profitability. While an institutional or owner-occupied office building might achieve a similar balance of priorities, as a speculative office building the Atrium raises the standard for its type.

 

Photo © silentSama

Images Courtesy D’Ambrosio Architecture + Urbanism

Images Courtesy D’Ambrosio Architecture + Urbanism

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