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Solutions for upper mid-rise and high-rise mass timber construction: numerical models for post-tensioned shear wall system with energy dissipators

https://library.fpinnovations.ca/en/permalink/fpipub52872
Author
Chen, Zhiyong
Popovski, Marjan
Date
May 2019
Material Type
Research report
Field
Sustainable Construction
Author
Chen, Zhiyong
Popovski, Marjan
Contributor
Natural Resources Canada. Canadian Forest Service
Date
May 2019
Material Type
Research report
Physical Description
43 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Cross Laminated Timber
Performance
Building construction
Building materials
Loads
Language
English
Abstract
The latest developments in seismic design philosophy in modern urban centers have moved towards the development of new types of so called “resilient” or “low damage” structural systems. Such systems reduce the damage to the structure during an earthquake while offering the same or higher levels of safety to occupants. One such structural system in mass timber construction is the “Pres-Lam” system developed by Structural Timber Innovation Company (STIC) and Prestressed Timber Limited (PTL), both from New Zealand. FPInnovations has acquired the Intellectual Property rights for the Pres-Lam system for use in Canada and the United States.
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Solutions for uppper mid-rise and high-rise mass timber construction: seismic performance of braced mass timber frames, year 1

https://library.fpinnovations.ca/en/permalink/fpipub52818
Author
Chen, Zhiyong
Popovski, Marjan
Symons, Paul D.
Date
April 2019
Material Type
Research report
Field
Sustainable Construction
Author
Chen, Zhiyong
Popovski, Marjan
Symons, Paul D.
Contributor
Natural Resources Canada. Canadian Forest Service
Date
April 2019
Material Type
Research report
Physical Description
44 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Cross Laminated Timber (CLT)
Performance
Building construction
Building materials
Seismic
Language
English
Abstract
Braced mass timber (MT) frames are one of the most efficient structural systems to resist lateral loads induced by earthquakes or high winds. Although braced frames are presented as a system in the National Building Code of Canada (NBCC), no design guidelines currently exist in CSA O86. That not only leaves these efficient systems out of reach of designers, but also puts them in danger of being eliminated from NBCC. The main objective of this project was to develop the technical information needed for development of design guidelines for braced MT frames as a lateral load resisting system in CSA O86. In the first year of the project, the seismic performance of thirty (30) braced MT frames with riveted connections with various numbers of storeys, storey heights, and bay aspect ratios were studied by conducting non-linear pushover and dynamic time-history analyses. Also, fifteen (15) glulam brace specimens using bolted connections with different slenderness ratios were tested under monotonic and cyclic loading. Results from this multi-year project will form the basis for developing comprehensive design guidelines for braced frames in CSA O86.
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