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Development of ductility-related modification factor for CLT-coupled wall buildings with replaceable shear link coupling beams.
- Source :
- Canadian Journal of Civil Engineering; 2023, Vol. 50 Issue 5, p362-374, 13p
- Publication Year :
- 2023
-
Abstract
- The desire of using sustainable materials has reignited the interest in timber-based construction. Researchers and practitioners are developing novel timber-based structural solutions. Cross-laminated timber (CLT)-coupled wall is a recently proposed system for potential use in mid- and high-rise timber construction. The National Building Code of Canada, however, does not include this system and, consequently, the seismic force modification factors are not available. This study evaluated the ductility-related force modification factor (R<subscript>d</subscript>) using the FEMA P-695 procedure. Nine archetype buildings were designed considering different design parameters: building storey height, CLT wall configuration, and coupling ratios. Using 30 ground motion records (bi-directional), rigorously selected for seismicity of Vancouver, BC, Canada, incremental dynamic analyses were performed. Collapse margin ratios were calculated to assess the adequacy of the trial R<subscript>d</subscript> factors. Using an over-strength factor of 1.5, R<subscript>d</subscript> = 4 is found to be acceptable for this system. [ABSTRACT FROM AUTHOR]
- Subjects :
- GROUND motion
WALLS
WOODEN building
TIMBER
Subjects
Details
- Language :
- English
- ISSN :
- 03151468
- Volume :
- 50
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- Canadian Journal of Civil Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 163408867
- Full Text :
- https://doi.org/10.1139/cjce-2022-0257