About the author  ⁄ Paul A. Fast, P.Eng., Struct. Eng., P.E., FIStructE, IngKH

Paul Fast is a Partner with Fast + Epp. Paul was recently awarded the Institution of Structural Engineers’ Gold Medal for 2021 to recognize his world leadership in the design of architecturally exposed structures. (mail@fastepp.com)

For centuries, structural engineers have been intrigued by the unique allure of designing buildings that rise higher, span longer, and assemble materials in new and counterintuitive ways. One of the current frontiers is building taller with wood. The introduction of cross-laminated timber has accelerated this pursuit, most notably in Europe and North America. While pushing the envelope is a noble objective, doing so just to secure bragging rights misses the mark. Just as the structural engineering community asks if it makes sense to build ever taller with concrete and steel, the same question can apply to tall wood towers.

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Brock Commons.

Brock Commons.

A Case Study in Tall Timber

The tallest contemporary wood building in the world was recently constructed at the University of British Columbia (UBC) in Vancouver, Canada. Brock Commons is an 18-story student residence that is a mass timber hybrid and measures a record 174 feet (53 meters). Fast + Epp are the structural engineers, working in conjunction with Acton Ostry Architects and Hermann Kaufmann Architekten. (The Sakyamuni Pagoda of Fogong Temple built in China in 1056 stands 220.83 feet (67.31 meters) and is the tallest wood building in the world.)

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STRUCTURE magazine