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15 records – page 1 of 2.

Expanding wood use towards 2025: development of mass timber midply wall systems, year 1

https://library.fpinnovations.ca/en/permalink/fpipub8152
Author
Chen, Zhiyong
Ni, Chun
Dagenais, Christian
Hu, Lin
Date
March 2021
Edition
March 2021
Material Type
Research report
Field
Sustainable Construction
through various promotion programs such as GCWood Program. In the meanwhile, seismic design provisions
Author
Chen, Zhiyong
Ni, Chun
Dagenais, Christian
Hu, Lin
Contributor
Engineered Wood Assocation (APA)
American Wood Council (AWC)
Date
March 2021
Edition
March 2021
Material Type
Research report
Physical Description
49 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Cross Laminated Timber (CLT)
Performance
Building construction
Building materials
Seismic
Shear walls
Standards
Series Number
Expanding wood use towards 2025
Technical Report TR 2021 N60
Language
English
Abstract
Building on the success of midply shear walls for wood-frame construction, a multi-year research project was initiated at FPInnovaitons to develop MT version of midply shear wall systems that have greater structural capacities, fire, and acoustical performance.
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Expanding wood use towards 2025: development of mass timber midply wall systems, year 1

https://library.fpinnovations.ca/en/permalink/fpipub8111
Author
Chen, Zhiyong
Ni, Chun
Dagenais, Christian
Hu, Lin
Date
March 2021
Edition
March 2021
Material Type
Research report
Field
Sustainable Construction
through various promotion programs such as GCWood Program. In the meanwhile, seismic design provisions
Author
Chen, Zhiyong
Ni, Chun
Dagenais, Christian
Hu, Lin
Contributor
Engineered Wood Assocation (APA)
American Wood Council (AWC)
Date
March 2021
Edition
March 2021
Material Type
Research report
Physical Description
49 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Cross Laminated Timber (CLT)
Performance
Building construction
Building materials
Seismic
Shear walls
Standards
Series Number
Expanding wood use towards 2025
Technical Report TR 2021 N48
Language
English
Abstract
n the first year of this project, literature reviews were conducted to identify the code requirements on MT components and to survey the available LLRSs used in the MT structures. Conceptual MT midply wall systems meeting structural, fire, and acoustical performance requirements were proposed. An advisory group meeting was held to evaluate the practicability of the proposed MT midply systems. In the next fiscal year, the proposed MT Midply will be optimised further according to the comments and suggestions from the advisory group. Analytical evaluation of the proposed MT Midply wall systems along with necessary tests will be conducted. Based on the evaluation, a go / no-go decision will be made as to whether the study should be continued for the proposed MT Midply.
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Expanding wood use towards 2025: increased seismic loads in the 2020 National Building Code

https://library.fpinnovations.ca/en/permalink/fpipub8163
Author
Popovski, Marjan
Bagheri, Mehdi
Chen, Zhiyong
Ni, Chun
Date
March 2021
Edition
March 2021
Material Type
Research report
Field
Sustainable Construction
EXPANDING WOOD USE TOWARDS 2025: INCREASED SEISMIC LOADS IN THE 2020 NATIONAL BUILDING CODE
Author
Popovski, Marjan
Bagheri, Mehdi
Chen, Zhiyong
Ni, Chun
Date
March 2021
Edition
March 2021
Material Type
Research report
Physical Description
44 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Building codes
Building construction
Building materials
Earthquakes
Seismic
Shear walls
Standards
Series Number
Expanding wood use towards 2025
Technical Report TR 2021 N63
Language
English
Abstract
National Building Code of Canada (NBC) 2020 is the latest edition of the national model code that will be published towards the end of 2021. Based on the best available information from the Standing Committee on Earthquake Design (SCED) at the time of writing this report, the seismic design demand in the NBC 2020 has increased for all site classes for many locations across the country. Also, there are other changes in NBC 2020 that might impact the seismic analysis and design of timber buildings. The main objective of this report is to compare the NBC 2020 to the 2015 edition, with emphasis on the level of the seismic design loads (demands), and potential impacts on the analysis and design of timber buildings.
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Expanding wood use towards 2025: seismic performance of braced mass timber frames, year 2

https://library.fpinnovations.ca/en/permalink/fpipub52921
Author
Chen, Zhiyong
Popovski, Marjan
Date
February 2020
Material Type
Research report
Field
Sustainable Construction
Canada PROJECT NUMBER: 301013618 (TASK: BRACED FRAMES) EXPANDING WOOD USE TOWARDS 2025: SEISMIC
Author
Chen, Zhiyong
Popovski, Marjan
Date
February 2020
Material Type
Research report
Physical Description
40 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Cross Laminated Timber (CLT)
Performance
Building construction
Building materials
Seismic
Series Number
Expanding wood use towards 2025
Language
English
Abstract
Braced timber frames (BTFs) are one of the most efficient structural systems to resist lateral loads induced by earthquakes or high winds. Although BTFs are implemented 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 is to generate the technical information needed for development of design guidelines for BTFs as a lateral load resisting system in CSA O86. The seismic performance of 30 BTFs with riveted connections was studied last year by conducting nonlinear dynamic analysis; and also 15 glulam brace specimens using bolted connections were tested under cyclic loading.
In the second year of the project, a relationship between the connection and system ductility of BTFs was derived based on engineering principles. The proposed relationship was verified against the nonlinear pushover analysis results of single- and multi-storey BTFs with various building heights. The influence of the connection ductility, the stiffness ratio, and the number of tiers and storeys on the system ductility of BTFs was investigated using the verified relationship. The minimum connection ductility for different categories (moderately ductile and limited ductility) of BTFs was estimated.
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Expanding wood use towards 2025: seismic performance of midply shear walls

https://library.fpinnovations.ca/en/permalink/fpipub7699
Author
Chen, Zhiyong
Ni, Chun
Karacabeyli, Erol
Yeh, Borjen
Line, Philip
Date
March 2020
Edition
52949
Material Type
Research report
Field
Sustainable Construction
Expanding Wood Use Towards 2025: Seismic Performance of Midply Shear Walls info
Author
Chen, Zhiyong
Ni, Chun
Karacabeyli, Erol
Yeh, Borjen
Line, Philip
Contributor
Engineered Wood Assocation (APA)
American Wood Council (AWC)
Date
March 2020
Edition
52949
Material Type
Research report
Physical Description
47 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Cross Laminated Timber (CLT)
Performance
Building construction
Building materials
Seismic
Shear walls
Standards
Series Number
Expanding wood use towards 2025
Language
English
Abstract
Midply shear wall (hereafter Midply), which was originally developed by researchers at Forintek Canada Corp. (predecessor of FPInnovations) and the University of British Columbia, is a high-capacity shear wall system that is suitable for high wind and seismic loadings. Its superior seismic performance was demonstrated in a full-scale earthquake simulation test of a 6-storey wood-frame building in Japan. In collaboration with APA–The Engineered Wood Association and the American Wood Council (AWC), a new framing arrangement was designed in this study to increase the vertical load resistance of Midply and make it easier to accommodate electrical and plumbing services. In this study, a total of 14 Midply specimens in six wall configurations with different sheathing thicknesses and nail spacing were tested under reversed cyclic loading. Test results showed that Midply has approximately twice the lateral load capacity of a comparable standard shear wall. The drift capacity and energy dissipation capability are also greater than comparable standard shear walls. For Midply to use the same seismic force modification factors as standard shear walls, seismic equivalency to standard shear walls in accordance with ASTM D7989 was also conducted. Although Midply has superior lateral load and drift capacities, it does not seem to be as ductile as the standard shear walls at the same over-strength level. Additional testing and dynamic analysis are recommended to address this issue.
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Expanding wood use towards 2025: seismic performance of midply shear walls, year 2

https://library.fpinnovations.ca/en/permalink/fpipub8109
Author
Ni, Chun
Chen, Zhiyong
Date
March 2021
Edition
March 2021
Material Type
Research report
Field
Sustainable Construction
                            EXPANDING WOOD USE  TOWARDS 2025:  SEISMIC PERFORMANCE
Author
Ni, Chun
Chen, Zhiyong
Contributor
Engineered Wood Assocation (APA)
American Wood Council (AWC)
Date
March 2021
Edition
March 2021
Material Type
Research report
Physical Description
52 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Cross Laminated Timber (CLT)
Performance
Building construction
Building materials
Seismic
Shear walls
Standards
Series Number
Expanding wood use towards 2025
Technical Report TR 2021 N43
Language
English
Abstract
Midply shear wall, which was originally developed by researchers at Forintek Canada Corp. (predecessor of FPInnovations) and the University of British Columbia, is a high-capacity shear wall system that is suitable for high wind and seismic loadings. Its superior seismic performance was demonstrated in a full-scale earthquake simulation test of a 6-storey wood-frame building in Japan. In collaboration with APA–The Engineered Wood Association and the American Wood Council (AWC), a new framing arrangement was designed in this study to increase the vertical load resistance of midply shear walls and make it easier to accommodate electrical and plumbing services. In this study, a total of 12 midply shear wall specimens in four wall configurations with different sheathing thicknesses and nail spacing were tested under reversed cyclic loading. Test results showed that the modified midply shear walls have approximately twice the lateral load capacity of a comparable standard shear wall. The drift capacity and energy dissipation capability are also greater than comparable standard shear wall. Seismic equivalency to standard shear walls in accordance with ASTM D7989 was also conducted. Results show that an overstrength factor of 2.5 and can be used to assign allowable design strengths of midply shear walls with 7/16” and nail spacing at 4” or 3” on center. For midply shear walls with 19/32” OSB, a higher overstrength factor must be used to meet the ductility criteria. The information from this study will support code implementation of the midply shear walls in Canadian and US timber design standards, thereby providing more design options for light wood frame structures in North America.
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Modelling of mass timber seismic force resisting systems

https://library.fpinnovations.ca/en/permalink/fpipub8031
Author
Chen, Zhiyong
Popovski, Marjan
Date
March 2021
Material Type
Research report
Field
Sustainable Construction
INFONOTE March 2021 – no. 06 Not-Restricted MODELLING OF MASS TIMBER SEISMIC FORCE RESISTING
Author
Chen, Zhiyong
Popovski, Marjan
Date
March 2021
Material Type
Research report
Physical Description
6 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Cross Laminated Timber (CLT)
Performance
Building construction
Building materials
Seismic
Series Number
InfoNote 2021 N6
Language
English
Abstract
This InfoNote briefly introduces the promising MT SFRSs, and the corresponding analytical and finite element models to support their adoptions in structural design offices.
Documents

InfoNote2021N6E.pdf

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Modélisation des systèmes de résistance aux forces sismiques

https://library.fpinnovations.ca/en/permalink/fpipub8033
Author
Chen, Zhiyong
Popovski, Marjan
Date
Mars 2021
Material Type
Research report
Field
Sustainable Construction
. (2020c). Expanding Wood Use Towards 2025: Seismic Performance of Braced Mass Timber Frames – Year 2
Author
Chen, Zhiyong
Popovski, Marjan
Date
Mars 2021
Material Type
Research report
Physical Description
7 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Cross Laminated Timber (CLT)
Performance
Building construction
Building materials
Seismic
Series Number
InfoNote 2021 N6
Language
French
Abstract
La présente InfoNote décrit brièvement les SRFS en bois massif prometteurs, de même que les modèles analytiques et par éléments finis correspondants dans le but d’encourager leur adoption par les entreprises de conception structurale.
Documents

InfoNote2021N6F.pdf

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Performance sismique des bâtiments en CLT

https://library.fpinnovations.ca/en/permalink/fpipub6019
Author
Popovski, Marjan
Karacabeyli, Erol
Ceccotti, A.
Date
January 2011
Edition
42936
Material Type
Research report
Field
Sustainable Construction
Author
Popovski, Marjan
Karacabeyli, Erol
Ceccotti, A.
Date
January 2011
Edition
42936
Material Type
Research report
Physical Description
58 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Timber
Laminate product
Building construction
Design
Seismic
Language
French
Abstract
Le bois lamellé-croisé (CLT), un produit novateur mis au point en Autriche et en Allemagne il y a environ 20 ans, s’est acquis depuis une popularité grandissante dans plusieurs pays européens grâce à ses applications résidentielles et non résidentielles. L’expérience européenne prouve que la construction en CLT peut être concurrentielle, notamment pour les immeubles de moyenne et grande hauteurs. Le présent chapitre comprend une revue de la documentation des travaux ayant été menés autour du monde sur le rendement sismique des panneaux de murs et des structures en CLT. Cela fait suite aux résultats obtenus grâce à une série de tests quasi statiques réalisés sur des panneaux de mur en CLT dans les laboratoires de FPInnovations à Vancouver, où divers assemblages et configurations de panneaux en CLT ont été évalués. Ces configurations comprenaient des panneaux de mur simples présentant trois différents rapports de forme, des panneaux de mur multiples avec des joints à demi-bois et différents types de vis pour les assembler de même que des assemblages de mur à deux étages. Les fixations permettant d’arrimer les murs à la fondation incluaient des ancrages d’acier standard avec des clous à filet annelé, des clous torsadés et des vis, la combinaison d’ancrages d’acier et de mécanismes de fixation, des vis longues disposées diagonalement, et des ancrages faits sur mesure utilisés avec des vis pour bois d’oeuvre. Les résultats ont démontré que les murs de CLT offrent une performance sismique adéquate lorsqu’ils sont fixés aux ancrages d’acier avec des clous ou des vis. De plus, l’utilisation de clous et de fixations à chaque extrémité du mur améliore la performance sismique. L’emploi de vis longues disposées diagonalement pour fixer le mur de CLT au sol n’est pas recommandé dans les zones à haut risque sismique en raison du comportement ductile réduit du mur et du mécanisme subi d’arrachement des vis. Par contre, l’installation de joints à demi-bois sur les plus grands murs peut non seulement s’avérer une solution efficace pour en réduire la rigidité, ce qui atténue la charge sismique entrante, mais aussi pour améliorer ses capacités de déformation. Enfin, l’utilisation de rivets pour bois d’oeuvre regroupés en petite quantité et de joints à ancrages faits sur mesure a aussi fait ses preuves quant à l’assemblage des panneaux de mur en CLT. De surcroît, ce chapitre procède à un relevé des méthodes potentielles permettant la mise en oeuvre et l’évaluation des valeurs de modification des forces (valeur « R ») pour la conception de différentes structures. On y soulève aussi les résultats de recherches poursuivies en Europe sur la détermination de la valeur « q » (l’équivalent européen de la valeur « R ») quant au comportement des structures de CLT. Enfin, d’après les données recueillies, on effectue les estimations des valeurs « R » des structures de CLT selon les normes du Code national du bâtiment du Canada et on réalise l’ébauche de procédures de conception de structures de CLT d’après leur capacité.
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Seismic design of a 10-storey CLT building

https://library.fpinnovations.ca/en/permalink/fpipub5774
Author
Follesa, M.
Vassallo, D.
Christovasilis, I.P.
Date
August 2013
Edition
39733
Material Type
Research report
Field
Sustainable Construction
No. 301007975 Transformative Technologies Techn ical Report 20 13114 Seismic Design of a 10-storey CLT
Author
Follesa, M.
Vassallo, D.
Christovasilis, I.P.
Contributor
Natural Resources Canada. Canadian Forest Service.
Date
August 2013
Edition
39733
Material Type
Research report
Physical Description
135 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Design
Seismic
Series Number
Transformative Technologies identifierSeries Project No.301007975
W-3028
Location
Vancouver, British Columbia
Language
English
Abstract
This report presents the seismic design of a 10-storey Cross Laminated Timber (CLT) building in Vancouver, BC, conducted according to the National Building Code of Canada. The multi-storey condominium consists of 20 apartments for a total floor area of about 2000 m2. First, a preliminary simplified model is formulated assuming the same stiffness per meter for each wall of the building. The Equivalent Seismic Force Procedure is applied and the results serve for a preliminary design of all the major connections that play a significant role on the lateral stiffness of the building, assuming rigid in plane floor diaphragms and well-anchored CLT walls. Based on the results of the preliminary design, a 3 dimensional finite element model is created, describing analytically the modelling approach adopted, and both the Equivalent Seismic Force Procedure (referred as static analysis) and the Modal Response Spectrum Method (referred as dynamic analysis) are applied to obtain the design forces for each wall of the building. Based on the results from the dynamic analysis, the final seismic design of the building is performed and the results are presented for connections dedicated to transfer (i) shear forces from floor diaphragms to walls below and from walls to diaphragms below, (ii) uplift forces for each wall, (iii) boundary forces between CLT panels within the same walls, (iv) boundary forces between perpendicular walls, and (v) boundary forces between CLT floor panels. All connections prescribed to provide ductility and energy dissipation are designed to fail in ductile failure mode according to the CSA 086-09 while connections that should remain within the elastic range to allow the ductile connections to yield are designed with overstrength factor.
Building construction - Design
Earthquakes, Effect on building construction
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15 records – page 1 of 2.