4222x
001079
2016-08-02

18-Story Mass Timber Hybrid Student Residence, Canada

Brock Commons is a student residence currently under construction at the University of British Columbia in Vancouver, Canada.

The mass timber hybrid structure comprises five‑ply cross-laminated timber (CLT) floor panels, a concrete transfer slab, and a steel framed roof.

Structure

The structure comprises 16 floors of five‑ply cross-laminated timber (CLT) floor panels, a concrete transfer slab at level 2, and a steel framed roof. The CLT panels are point supported on glulam columns at a 9.3 ft x 13 ft grid.

Beams were eliminated from the design by utilizing CLT’s two‑way spanning capabilities. Two full‑height concrete cores, for lateral stability, complete the structure.

The structural analysis for the CLT components was completed by Fast + Epp using RFEM in conjunction with the RF‑LAMINATE add‑on module.

Modeling and Calculation

Individual floors were modeled in RFEM with the RF‑LAMINATE add‑on module to best determine the flexure/shear demands in the panels, as well as the serviceability performance of the two‑way, point-supported system.

The stress analysis and detailed design of the CLT panels themselves were carried out separately. Full-scale tests were used to confirm the modeling and design assumptions.



Project Specifications

Model data

Number of Nodes 989
Number of Lines 1207
Number of Members 33
Number of Surfaces 160
Number of Load Cases 2
Number of Load Combinations 2
Total Weight 52.612 tons
Dimensions 186.22 x 51.89 x 0 feet
Program Version 5.07.00

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