Innovation May-June 2023

DISTRICT 56 TALLWOOD 1 District 56 Tallwood 1 is celebrated as the first tall mass timber building on Vancouver Island, the first Encapsulated Mass Timber Construction (EMTC) building, and the second tallest wood building in Canada. This 12-storey residential building consists of 11 storeys of mass timber on a one-storey concrete podium commercial space, atop a two-level concrete underground parkade. The superstructure is a streamlined and efficient point-supported CLT floor plate on glulam columns, allowing easy integration with MEP services, rapid erection, and minimum structural depth. The building meets extremely high seismic demands with highly ductile steel eccentrically braced frames, optimized to be highly prefabricated in multi-storey sections. This unique combination of mass timber and steel construction drastically reduced the structural embodied carbon relative to a conventional concrete build while maintaining fast construction times and keeping costs reasonable. Participants: Aspect Structural Engineers: Mehrdad Jahangiri, P.Eng.; Ilana Danzig, P.Eng., Struct.Eng., Jackson Pelling, P.Eng., Ornagh Higgins; Architect: Jack James.

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