Resilient-Timber Building Incorporating Energy Dissipators: Analytical and Experimental Tests

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Rapid growth of urban populations and associated environmental concerns are challenging city planners and developers to consider sustainable building systems. Timber is such a sustainable material, but the 2015 National Building Code Canada (NBC) limits height of stick frame construction to 6 storeys. With recent introduction of large-scale engineered cross-laminated timber (CLT) panels and glulam timber, however, mid- and high-rise timber buildings became viable option. Consequently, the 2020 NBC will push the limit of mass timber, such as CLT, to 12 storeys. In this proposal, a resilient timber buildings for mid-rise (6- to 8-storey) and high-rise (10- to 20-storey) buildings using innovative energy dissipators and structural systems is considered. The first part of the proposal will push the mid-rise building limits by introducing coupled energy-dissipator light frame buildings with CLT wall that has recentering capability. As this type of system is not covered in the current design code, this proposal will develop performance-based design guideline.