“Living” skin lands HOK designers first place in Chicago Living Building Challenge competition

Architecture, Awards, Midwest, News
Thursday, June 5, 2014
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HOK's design for an addition to Chicago's Eli Whitney Elementary School employs a "living" bimetallic skin. (Courtesy HOK)

HOK’s design for an addition to Chicago’s Eli Whitney Elementary School employs a “living” bimetallic skin. (Courtesy HOK)

With a “living” skin of bimetallic strips, four HOK architects have won a Chicago Living Building Challenge competition to design an addition for a school on Chicago’s Southwest Side.

The 2014 School Annex Design Competition, organized by the Living Building Challenge Collaborative: Chicago (LBCCC), asked entrants to design a new building for overcrowded Eli Whitney Elementary School while meeting the strict environmental standards of the Living Building Challenge, which include omitting a long list of banned building materials.

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Perkins+Will Canada’s VanDusen Gardens Orchid

Fabrikator
Friday, November 22, 2013
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Brought to you with support from:
Fabrikator
StructureCraft fabricated 71 timber roofing panels for Canada's first Living Building Challenge-targeted new construction project. (Nic Lehoux)

StructureCraft fabricated 71 modular roofing panels from timber for a Living Building Challenge-targeted new construction project. (Nic Lehoux)

StructureCraft fabricates an orchid-shaped roof that supports vegetation and Living Building Challenge principles.

After serving patrons at one of Vancouver’s oldest botanical gardens for nearly 100 years, the VanDusen Gardens Visitors Centre had fallen dangerously into disrepair. Perkins+Will Canada conceived of a new, orchid-shaped center that meets CaGBC’s LEED Platinum ratings, and is the country’s first structure to target the International Living Building Challenge with features like geothermal boreholes, a 75-square meter photovoltaic array, and a timber roof that supports vegetation. To help fabricate the wooden structure to Perkins + Will Canada’s vision, the team contracted StructureCraft, a Vancouver-based design-build studio specializing in timber craftsmanship and structural solutions.

Initial designs for the 19,000-square-foot building were delivered to StructureCraft as Rhino files. The uniquely shaped rooftop, which mimics an outline of the indigenous British Columbia orchid, had to be economically fabricated in a way that took net carbon effects into account. Within Rhino plugins—mainly Grasshopper—and with the help of strucutral engineers Fast + Epp, the StructureCraft team sliced the shape of the building into 71 long, curved panels of repeatable geometries. “Each curve is unique, so there’s a different radii for each beam,” said Lucas Epp, a structural engineer who worked on the project. “We optimized the global geometry of the roof so the radii of all the beams were in our fabrication tolerances but still achieved the architect’s desired aesthetic.” Read More

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