RESEARCH IN PROGRESS - Mass Timber and Tall Wood Building Research Canada and the United States - Think Wood
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A THINK WOOD RESEARCH PUBLICATION
RESEARCH IN PROGRESS
Updated March 2019
Mass Timber and Tall Wood Building Research
Canada and the United States
research library
About this Publication
This publication summarizes a wide range of research and testing that is currently underway at the time of
publication, as it relates to the performance, benefits and characteristics of timber products. The research
contained in this report is incomplete and in progress at various stages. Its purpose is to educate, inform and
promote collaboration among researchers and building industry members. We welcome your questions and
comments, along with research submissions to be considered for future publication updates.
Acknowledgments
Antje Wahl, Manager, Research & Innovation, Forestry Innovation Investment, gathered the list of research
projects in this document with assistance from the following organizations:
• FPInnovations
• Natural Resources Canada
• Mass Timber Institute
• Ministère des Forêts, de la Faune et des Parcs du Québec
• Ontario Ministry of Natural Resources and Forestry
• Softwood Lumber Board
• TallWood Design Institute
• Université Laval, CIRCERB (Chaire industrielle de recherche sur la construction écoresponsable en bois)
• U.S. Forest Service - Forest Products Laboratory
Contact
For additions, corrections, updates or questions about this document please contact:
Email: info@thinkwood.com
Disclaimer: The author(s) of this publication have made every attempt to ensure its accuracy and reliability at the time of publication. However,
information is subject to change without notice and author(s) are not in any way liable for the accuracy of any information printed and stored
or in any way interpreted and used by a user.
RESEARCH IN PROGRESS 2
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RESEARCH IN PROGRESS 3
Table of Contents
Structural Resiliency 9
1. Adoption of Post-Tensioning Systems in North America (CA) 9
2. Behavior of CLT Diaphragm Panel-to-Panel Connections with Self-tapping Screws (US) 9
3. Blast-Resistant Testing for Loaded Mass Timber Structures (US) 9
4. Development of Cross-Laminated Timber for Seismic Regions of the United States (US) 9
5. Development of Heavy Timber Buckling Restrained Braced Frames (US) 10
6. Development of High-Capacity Hold-Down for Mass-Timber Buildings (CA) 10
7. Development of a Ready-To-Assemble (RTA) Tornado Safe Room Constructed from Cross-Laminated Timber
(US) 10
8. Development of Seismic Performance Factors for Cross Laminated Timber—Phase II (US) 10
9. Development of Seismic Performance Factors of Cross-Laminated Timber—Phase III (US) 10
10. Development of Seismic Performance Factors for Cross-Laminated Timber Shear Walls (US) 11
11. Ductility of Wooden Structures Including Solid Wood Buildings (CA) 11
12. Dynamic Behavior of High-Rise Wood Buildings under Wind Loads (CA) 11
13. Engineered Timber Structural Systems for Seismically Resilient Tall Buildings (US) 12
14. Evaluation of Timber Seismic Force Resisting System in Tall Mass Timber Buildings - Phases 1 & 2 (CA) 12
15. Resistance of Glued-in Rod Connections to Seismic Loads (CA) 12
16. Seismic Design Provisions and Commentary for Post-Tensioned Mass Timber Walls (US) 13
17. Seismic Performance of Braced Mass Timber Frames (CA) 13
18. Seismic Performance of Cross-Laminated Timber and Cross-Laminated Timber-Concrete Composite Floor
Diaphragms (US) 13
19. Seismic Performance of Platform- and Balloon-Type Mass Timber Buildings (CA) 13
20. Utilization of Cross-Laminated Timber as a Soft Story Retrofit within the NEES-Soft Shake Table Test (US)
13
21. Wind and Earthquake Design Framework for Tall Wood-Concrete Hybrid System (CA) 14
System Design and Construction 14
22. Acoustical Performance of Tall Wood Buildings (CA) 14
23. Actuarial Contribution to the Understanding of Insurable Risks Related to Non-residential High-rise
Buildings in CLT (CA) 14
24. An Engineering Demonstration for a Mass Timber Affordable Housing Prototype for Large-Scale Urban
Deployment (US) 14
25. Assessment and Monitoring of Building Vibrations (CA) 14
26. Biomimicry as a Generator of Optimal Volumetrics in Wood (CA) 14
27. CLT Handbook 2nd Canadian Edition (CA) 15
28. Composite Concrete-CLT Floor Systems for Tall Building Design (US) 15
RESEARCH IN PROGRESS 4
29. Connections for Stackable Heavy Timber Modules in Midrise to Tall Wood Buildings (CA) 15
30. Cross-Laminated Timber Fasteners Solutions for Tall Wood Buildings (US) 15
31. Development of a BIM Library for Wood Construction (CA) 16
32. Development of Large Span CLT Floor/Roof System with Two-Way Plate Bending Action: Phase II (CA) 16
33. Development of Light Prefabricated Hybrid Structures for a High-Rise Multi-Storey Building with
Emphasis on Connections (CA) 16
34. Development of Robust Design Details for Improved Acoustics in Mass Timber Construction (CA) 16
35. Evaluation of CLT Connections for Seismic Design and Fire Performance in Mass Timber/Tall Wood
Buildings (Technical Guide) (CA) 17
36. Evaluation of Mobile Digital Tools to Monitor BIM Construction (CA) 17
37. Lateral Load Capacity in a Solid Structure Assembled with Glued-in Rods (CA) 17
38. Mass Timber and Wood Frame Study on Options for Schools in Metro Vancouver, British Columbia (CA)
18
39. Mechanically Fastened Cross-Laminated Timber System Feasibility (US) 18
40. Multi-objective Optimization of the Ceiling-to-Floor System in a Wooden Building (CA) 18
41. Solutions for Acoustic Control of Mass Timber Floors and Walls (CA) 18
42. Topological Optimization of Ecological Tri-composite Floors in Lightweight Structural Wood, Ultra High
Performance Concrete and Polymeric Fibres (CA) 18
43. Use of Augmented Reality as a Tool for Valuing Wood Materials During the Design Phase - Architectural
Component (CA) 19
44. Use of BIM and IPD for the Improvement and Management of Fire Safety in High-Rise Construction in
Solid Wood (CA) 19
45. U.S. Mass Timber Floor Vibration Design Guide and Validation (US) 19
Fire Performance 20
46. A New Approach to Classify the Degree of Combustibility of Materials (CA) 20
47. Characterizing High Temperature Performance of Structural Adhesives (CA) 20
48. Compartment Fire Testing of Cross-Laminated Timber Structures (US) 20
49. Concrete Composite Floors Using Radiant Panel Tests (US) 20
50. Evaluating Fire Performance of Nail Laminated Timber (CA) 21
51. Fire Penetration Testing (US) 21
52. Fire Performance of Custom CLT Layups Utilizing Pine from Logs Harvested in Western Forest Restoration
Programs (US) 21
53. Fire-Retardant-Treated Structural Glued Laminated Timber (Glulam) and Laminated Veneer Lumber
(LVL) (US) 21
54. Fire Resistance of Assemblies in Solid Wood Construction (CA) 22
55. Fire Resistance of Cross-Laminated Timber Elements Manufactured with New Adhesives (CA) 22
56. Fire Resistance of Mass Timber Laminated Elements – NLT, SLT and SCL (CA) 22
57. Fire Resistance of Unprotected CLT Floors & Walls Manufactured in the U.S. (US) 22
RESEARCH IN PROGRESS 558. Fire Risk with Different Adhesives in Cross-Laminated Timber (CLT) (US) 23
59. Fire Tests of Exposed NLT Walls / Ceilings (CA) 23
60. Infrared Imaging for Fire Risks (CA) 23
61. Mitigating Fire Performance Concern through Fire Endurance Modeling (US) 23
Durability and Building Physics 23
62. Building Science Guidelines for Mass Timber Buildings (CA) 23
63. Characterization and Quantification of VOC and Other Chemical Compounds in the Building: Impact on
Occupant Health, Air Quality and the Environment (CA) 24
64. Control of Solar-Driven Moisture Diffusion in Cross-Laminated Timber Walls with Absorptive Claddings
(US) 24
65. Cross-Laminated Timber (CLT) Resistance to Infestation by Subterranean Termites (US) 24
66. Cross-Laminated Timber Roof Panels at the Promega Corporation Facility: Documenting Installation and
Monitoring In-Service Moisture Conditions (US) 24
67. Development of Isocyanate-Free and Formaldehyde-Free Adhesives for CLT (US) 25
68. Durability and Protection of CLT in Parking Structures (US) 25
69. Evaluating Decay Resistance of Mass Timber (US) 25
70. Evaluating Hygrothermal Performance of Interlocking Cross-Laminated Timber Walls (US) 26
71. Expanding the Cross-Laminated Timber Market through Building Moisture Monitoring and Improved
Modeling (US) 26
72. Hygrothermal Performance of Glued Cross-Laminated Timber Walls (US) 26
73. Impact of Moisture on Post-tensioned Rocking Walls (US) 26
74. Increasing Durability of Mass Timber Products in Interior Applications (US) 27
75. Living Lab at Peavy Hall: Structural Health Performance of Mass Timber Buildings (US) 27
76. Low Emitting Structural Mass Timber Products: Formaldehyde (CA) 27
77. Moisture Performance and Vertical Movement Monitoring of Pre-Fabricated Cross Laminate Timber:
UBC Tallwood House (CA) 27
78. Monitoring Performance of Mass Timber Demonstration Buildings in Ontario (CA) 27
79. Mould and Service Life Risk of Tall Wood Buildings (CA) 27
80. Net-Zero Energy TallWood Design (US) 28
81. Ontario’s Climate Resilient Tall Wood Buildings and Structures: An Evaluation of the Impacts of Climate
Change on Mass Timber/Tall Wood (CA) 28
82. Performance Criteria for Natural-Looking Coatings on Mass Timber Products Using Exterior Applications
(US) 28
83. Rehabilitation of Mass Timber Following Fire and Sprinkler Activation (CA) 28
84. Structural Health Monitoring and Post-Occupancy Performance of Mass Timber Buildings (US) 29
85. Tall Wood Buildings and Indoor Air Quality (US) 29
86. Towards Resilient Mass Timber Systems: Understanding Durability of Cross-Laminated Timber
Connections (US) 29
RESEARCH IN PROGRESS 687. Use of Wood in Health Care Facilities (CA) 29
88. Water in Mass Timber (US) 30
89. Water Misting Systems (CA) 30
90. Wood Innovation Research Laboratory – Phase 2 (Monitoring of Passive House Certified Laboratory
Building) (CA) 30
91. Virtual Reality for Better Energy Efficiency via Pre-occupancy Assessment (CA) 30
Materials and Manufacturing Processes 31
92. Bonding Mixed Species for Advanced Biomaterials (US) 31
93. Engineering Performance Characteristics of Hardwood Cross-Laminated Timber (US) 31
94. Development of a New Generation of Structural Composites (CA) 31
95. Mass Plywood Panel Product Development Testing (US) 31
96. Mass Timber Products from Under-utilized Species in Northwestern Ontario (CA) 32
97. Producing CLT Panels from Low Value Appalachian Hardwoods: Part 2, Demonstrating CLT Panel
Production, Properties, and Use (US) 32
98. Structural Bonding Conditions of Hardwood Used in Construction (CA) 32
Sustainability and Economic Analysis 32
99. Assessing the Environmental Impacts of the Canadian Building Sector through Dynamic Life Cycle
Analysis: Developing a Forward-looking Model for Greater Use of Wood Products (CA) 32
100. Business Risk Factors in Wood Construction from Design to Commissioning (CA) 33
101. Carbon Impacts of CLT (US) 33
102. Characterization and Prediction of Construction Detail Quality and Their Implications for the Customer
(CA) 33
103. Considering Embodied Energy in the Application of the National Building Code (NBC) (CA) 34
104. Construction Cost and Time Estimating Tool Development and Industry Outreach for Cross-Laminated
Timber Buildings (US) 34
105. Cost Comparisons of Mass Timber versus Conventional Construction (US) 34
106. Environmental Assessment of MPP (US) 34
107. Development of an Interface for 3D Structure Models to LCA Software (CA) 35
108. Environmental Impact Assessment of a Construction Project Using Environmental Product Declarations
(EDPs) for Sustainable Design (CA) 35
109. Life Cycle Analysis of Old- and New Peavy Hall (US) 35
110. Environmental Performance of the Building Envelope of Wood Buildings - Materials and LCA Approach
(CA) 35
111. Positioning of Wood Construction in a Circular Economy (CA) 36
112. Potential for Tall Wood Buildings to Sequester Carbon, Support Forest Communities, and Create New
Options for Forest Management (US) 36
113. Technical and Strategic Mapping of Major Warranty Plans for New Construction in Canada (CA) 36
RESEARCH IN PROGRESS 7114. Wood as a Central Player in Decarbonizing the Building Sector (CA) 37
115. Wood Construction and Multi-risks in Insurance (CA) 37
Demonstration and Markets 37
116. Affordable Housing Opportunities with Mass Timber (US) 37
117. Demonstrating Use and Performance of a CLT Modular Building Utilizing Low‐Value Pine Lumber from
Logs Harvested in Pacific NW Forest Restoration Programs (US) 37
118. Design, Engineering and Cost Estimation for a Demonstration CLT Townhouse (US) 37
119. Establishing New Markets for CLT - Lessons Learned (US) 38
120. Green Construction through Wood (CA) 38
121. Northern Forests to Timber Cities: Linking Urban Construction Demand to Northern Forest Mass Timber
and Harvested Wood Products (US) 38
122. Overbuilds with Mass Timber - Building Preservation, Restoration and Growth (US) 38
123. Proving Cross Laminated Timber Panels for Residential Homes (US) 38
124. The Pulse of the Global CLT Industry: Launching an Annual Survey as a Continuing Learning Tool (US) 39
Education, Training and Research Needs 39
125. Gaps in Tall Wood Building Research and Education & Training (CA) 39
126. International Wood Educators’ Forum and Development in European Markets & Education (CA) 39
127. Mass Timber Building Construction: Key Needs in Research and Teaching (CA) 39
128. Supporting the Adoption of Ontario’s Tall Wood Building Reference and the Implementation of Ontario’s
Mass Timber Program (CA) 40
RESEARCH IN PROGRESS 8Structural Resiliency
1. Adoption of Post-Tensioning Systems in North America (CA)
Description Expand applications of wood products by establishing a new building system that will
provide a higher level of seismic performance
Investigators FPInnovations
Timeline April 2018 to March 2019
Contact Marjan Popovski, FPInnovations, marjan.popovski@fpinnovations.ca
2. Behavior of CLT Diaphragm Panel-to-Panel Connections with Self-tapping Screws (US)
Description Understanding how roof and floor systems (commonly called diaphragms by engineers)
that are built from Pacific Northwest-sourced cross-laminated timber (CLT) panels
perform in earthquake prone areas is a critical area of research. These building
components are key to transferring normal and extreme event forces into walls and
down to the foundation. The tests performed in this project will provide data on
commonly used approaches to connecting CLT panels within a floor or roof space and
the performance of associated screw fasteners. Structural engineers will directly benefit
through improved modeling tools. A broader benefit may be increased confidence in the
construction of taller wood buildings in communities at greater risk for earthquakes.
Investigators TallWood Design Institute
Timeline
Contact Thomas Miller, Oregon State University, Thomas.Miller@oregonstate.edu
3. Blast-Resistant Testing for Loaded Mass Timber Structures (US)
Description The outcomes of the quasi-static testing will include
• establishing a resistance function to compare to the resistance function created
from previous testing without axial load,
• potentially quantifying residual capacity after bending failure, and
• determining if a ductile failure mode exists when inducing a compression
failure in the outer lamination.
Live blast testing outcomes will include
• proving the efficacy of CLT technology in real blast resistant applications and
establishing a basis for the design methods recommended for use.
Investigators USDA Forest Service Forest Products Laboratory, WoodWorks™ – Wood Products
Council, Softwood Lumber Board
Timeline July 2017 to late 2017
Contact Christopher (Adam) Senalik, Forest Products Laboratory, christopherasenalik@fs.fed.us
Lisa Podesto, WoodWorks™ – Wood Products Council, lisa@woodworks.org
4. Development of Cross-Laminated Timber for Seismic Regions of the United States (US)
Description The research project will develop both analytical tools and methods to enable the use of
CLT in seismic regions of the United States for new buildings and make CLT wall systems
a viable seismic retrofit option for commercial wood structures.
Investigators USDA Forest Service Forest Products Laboratory, University of Alabama, South Dakota
State University, APA–The Engineered Wood Association
Timeline September 2011 to January 2013
Contact Douglas R. Rammer, Forest Products Laboratory, drammer@fs.fed.us
John van de Lindt, University of Alabama, jwvandelindt@eng.ua.edu
Shiling Pei, Colorado School of Mines, spei@mines.edu
RESEARCH IN PROGRESS 95. Development of Heavy Timber Buckling Restrained Braced Frames (US)
Description The principal outcome of this project will be a BRB design methodology incorporating
heavy timber. Additionally, cyclic performance data will be generated to allow both
design and codification of the HT-BRBF system for use in high seismic and wind regions
of the United States.
Investigators USDA Forest Service Forest Products Laboratory, University of Utah, Arup USA, U.S.
Endowment for Forestry & Communities
Timeline January 2017 to December 2017
Contact Douglas R. Rammer, Forest Products Laboratory, drammer@fs.fed.us
Chris P. Pantelides, University of Utah, c.pantelides@utah.edu
6. Development of High-Capacity Hold-Down for Mass-Timber Buildings (CA)
Description The most important step towards the commercialization of novel hold-down solutions
for mass-timber structures is to obtain reliable data about their structural performance.
For this purpose, several hold-down configurations will be tested experimentally to
evaluate their strength, stiffness and ductility.
Investigators University of Northern British Columbia
Timeline April 2018 to March 2019
Contact Mark Barnes, University of Northern British Columbia, mark.barnes@unbc.ca
7. Development of a Ready-To-Assemble (RTA) Tornado Safe Room Constructed from Cross-Laminated Timber
(US)
Description A workable RTA safe room constructed from CLT will be verified to resist the forces of an
EF-5 tornado and the requirements of the ICC-500 design standard.
Investigators D.R. Johnson Wood Innovations Timber Engineering LLC, USDA Forest Service Forest
Products Laboratory
Timeline Completed by December 2017
Contact Todd Black, D.R. Johnson Wood Innovations, tblack@drjlumber.com
Bob Falk, Forest Products Laboratory, rhfalk@fs.fed.us
8. Development of Seismic Performance Factors for Cross Laminated Timber—Phase II (US)
Description The ultimate outcome of the project will be broadly accepted seismic performance
factors for CLT in the United States, which will then be available for use by engineering
designers in seismic regions where seismic guidelines are mandated. A secondary
outcome will be the methodology to follow on how future component changes can be
incorporated into the design of CLT.
Investigators Colorado State University, USDA Forest Service Forest Products Laboratory,
South Dakota State University, American Wood Council, FPInnovations
Timeline September 2012 to July 2014
Contact John W. van de Lindt, Colorado State University, jwv@engr.colostate.edu
Douglas Rammer, Forest Products Laboratory, drammer@fs.fed.us
Shiling Pei, Colorado School of Mines, spei@mines.edu
9. Development of Seismic Performance Factors of Cross-Laminated Timber—Phase III (US)
Description The ultimate outcome of the project will be broadly accepted seismic performance
factors for CLT in the United States, which will then be available for use by engineering
designers in seismic regions where seismic guidelines are mandated. A secondary
outcome will be the methodology to follow on how future component changes can be
incorporated into the design of CLT.
Investigators Colorado State University, USDA Forest Service Forest Products Laboratory,
South Dakota State University, American Wood Council, FPInnovations
Timeline September 2012 (phase I) to December 2015 (phase III)
RESEARCH IN PROGRESS 10Contact John W. van de Lindt, Colorado State University, jwv@engr.colostate.edu
Douglas Rammer, Forest Products Laboratory, drammer@fs.fed.us
10. Development of Seismic Performance Factors for Cross-Laminated Timber Shear Walls (US)
Description This research will result in the following:
• Evaluation of seismic performance factors, including response modification factor
(R-factor), system over strength factor, and deflection amplification factor for
seismic design in the United States
• Design methodology based on the 2015 National Design Specification for Wood
Construction, including appendix E, ASCE/SEI 7-10, Minimum Design Loads for
Buildings and Other Structures, and applicable building code that can be used by
engineers nationwide
• Component tests data that are reported in accordance with the standards and are
widely available to the engineering community, allowing application of P795
methodology to facilitate potential use for alternative fasteners and connectors by
manufacturers
Investigators Colorado State University, USDA Forest Service Forest Products Laboratory, American
Wood Council, Colorado School of Mines, FPInnovations
Timeline Early 2017 to early 2018
Contact John W. van de Lindt, Colorado State University, jwv@engr.colostate.edu
Douglas Rammer, Forest Products Laboratory, drammer@fs.fed.us
11. Ductility of Wooden Structures Including Solid Wood Buildings (CA)
Description This project will involve the modeling of typical multistage buildings and non-linear
dynamic analyzes for various seismic hazards (Montreal, Quebec, Charlevoix). The
models will be developed using OpenSees, and validated with commercial software
(SAFI, SAP2000). The temporal responses of typical buildings, subject to earthquakes
generated for the region, will be calculated for different parameters (number of floors,
bays, types of SRFS). Pushover type analyzes will also be carried out (rigid frame systems
or shear walls). Sectional ductility demands will be evaluated for different types of wood
sections and assemblies. These ductility values will be used to target the best wood
seismic resistance systems, depending on the type of construction.
Investigators Université de Sherbrooke
Timeline
Contact Jean Proulx, Université de Sherbrooke, Jean.Proulx@USherbrooke.ca
12. Dynamic Behavior of High-Rise Wood Buildings under Wind Loads (CA)
Description The National Building Code of Canada (NBCC, NRC 2015) proposes equations to limit
acceleration at the top of a tall building. These equations were developed and validated
on several buildings designed between 1975 and 2000. The buildings built during these
years are made of concrete or steel. It is therefore not certain that the NBCC equations
can be applied for tall wooden buildings; wood being a lighter material than concrete
and steel. In this project, the PhD candidate will study the impact of lateral load
resistance systems and fastening systems used in timber framing on natural frequency
and damping as well as its response due to wind loads. The influence of non-structural
elements will also be studied. Two high-rise wooden buildings (Origine, 13 floors in
Quebec City and Arbora, 8 floors in Montreal) are currently being instrumented to
obtain information on the dynamic behavior of the structure. The measurements taken
on these two buildings will be used, among other things, to validate theoretical models
developed in the context of the doctorate.
Investigators Université Laval
Timeline
RESEARCH IN PROGRESS 11Contact Christian Dagenais, Université Laval, Christian.Dagenais@sbf.ulaval.ca
13. Engineered Timber Structural Systems for Seismically Resilient Tall Buildings (US)
Description Framework for a performance-based seismic design (PBSD) methodology and feasibility
of three prototype systems to enable 8- to 14-story resilient CLT buildings in regions of
high seismic hazard.
• Set of quantitative seismic PBSD targets for tall timber buildings
• Core numerical model for seismic analysis of panelized CLT structure system
• Cost-effective structural systems for resilient tall CLT buildings that are
adequately detailed and experimentally verified at the component level
• Outline of a PBSD process for tall CLT systems and an applicable building
portfolio and educational NEES modules on CLT for engineers and the general
public on NEES Academy
Investigators Colorado School of Mines, Lehigh University, Washington State University, University of
Washington, Colorado State University, ARUP, USDA Forest Service Forest Products
Laboratory, FPInnovations
Timeline October 2014 to 2016 (two years)
Contact Shiling Pei, Colorado School of Mines, spei@mines.edu
Douglas Rammer, Forest Products Laboratory, drammer@fs.fed.us
14. Evaluation of Timber Seismic Force Resisting System in Tall Mass Timber Buildings - Phases 1 & 2 (CA)
Description Currently, only light frame wood-based shearwall and braced and moment-resisting
frames are given in the NBC 2015 as acceptable solutions, with the height limit for these
SFRSs in high seismic zones being 20 m (6 storeys). There is no acceptable solution for
using Timber SFRS in buildings more than 20 m high in high seismic zones. The Tall
Wood building projects in Canada have been following the “Alternative Solution” path
with supporting test data and analysis that could demonstrate equivalent or better
performance than building and fire code or local condition requirements, and were
approved on a case-by-case basis by the Authority Having Jurisdiction (AHJ). The Tall
Wood projects have been and will be faced with different level of difficulties and
challenges depending on the familiarity of AHJ with tall wood construction.
Furthermore, there are no consistent procedure and performance criteria to analyze
and evaluate the Timber SFRS in tall mass timber buildings that could be referenced by
the AHJ. This project is to undertake the work related to:
• Phase I: development of a Technical Guide with a procedure for evaluation of
the seismic performance of Timber SFRS in tall mass timber buildings.
• Phase II: evaluation of an example solution of Mass Timber SFRS in accordance
with the developed Technical Guide as a “Demo” project.
Investigators National Research Council Canada
Timeline Phase 1 (Technical Guide) due March 2019, Phase 2 planned for 2019/2020
Contact Jasmine Wang, National Research Council, Jasmine.Wang@nrc-cnrc.gc.ca
15. Resistance of Glued-in Rod Connections to Seismic Loads (CA)
Description While glued-in rods meet a need for refined architectural design, do they respond to a
seismic architectural design? Can they prevent destructive damage and ensure recovery
efforts given that this system has singular anchor points? Do the braces and diaphragms
have the same behavior as in traditional connector systems? Based on the work of
Verdet (2016), modeling can identify the a priori behavior followed by a validation test
on seismic table.
Investigators Université de Sherbrooke
Timeline
Contact Jean Proulx, Université de Sherbrooke, Jean.Proulx@USherbrooke.ca
RESEARCH IN PROGRESS 1216. Seismic Design Provisions and Commentary for Post-Tensioned Mass Timber Walls (US)
Description
Investigators Colorado School of Mines
Timeline
Contact
17. Seismic Performance of Braced Mass Timber Frames (CA)
Expected outcomes Maintain the category of timber braced frames in the National Building Code of Canada
Investigators FPInnovations
Timeline April 2018 to March 2019
Contact Marjan Popovski, FPInnovations, marjan.popovski@fpinnovations.ca
18. Seismic Performance of Cross-Laminated Timber and Cross-Laminated Timber-Concrete Composite Floor
Diaphragms (US)
Description This project develops benchmark data needed to generate design guidelines for
structural engineers to calculate strength & stiffness of CLT-diaphragms, with and
without concrete toppings. The project includes a full-scale test of a two-story mass
timber building at the UC San Diego shake table in collaboration with the larger project,
“Development and Validation of a Resilience-based Seismic Design Methodology for Tall
Wood Buildings” which features collaborators from throughout the western US and is
funded by the Natural Hazards Engineering Research Infrastructure (NHERI) program of
the National Science Foundation.
Investigators TallWood Design Institute
Timeline
Contact André Barbosa, Oregon State University, andre.barbosa@oregonstate.edu
19. Seismic Performance of Platform- and Balloon-Type Mass Timber Buildings (CA)
Description
• Refine models developed for other mass timber products
• Facilitate design by engineers
• Allow acceptance of seismic design factors for mass timber buildings in the National
Building Code of Canada (the factors will not be in the 2020 NBCC)
• Broaden the potential of this system by examining use of SCL (e.g., LVL)
• Alternative solution(s) to CLT
Investigators FPInnovations
Timeline April 2018 to March 2019
Contact Marjan Popovski, FPInnovations, marjan.popovski@fpinnovations.ca
20. Utilization of Cross-Laminated Timber as a Soft Story Retrofit within the NEES-Soft Shake Table Test (US)
Description CLT experimental results generated in cooperation with the NEES-Soft Project will be
used to
• validate current FEMA P-807 retrofit procedures,
• validate CLT use as a viable retrofit option for soft story wood-frame buildings,
and
• increase the visibility of CLT as a viable and sustainable building product in
seismic regions of the United States.
Investigators Colorado State University, USDA Forest Service Forest Products Laboratory, National
Science Foundation NEES–Soft Project
Timeline Spring 2013 to late 2014
Contact John van de Lindt, Colorado State University, jwv@engr.colostate.edu
RESEARCH IN PROGRESS 13Douglas R. Rammer, Forest Products Laboratory, drammer@fs.fed.us
21. Wind and Earthquake Design Framework for Tall Wood-Concrete Hybrid System (CA)
Description The objective is to develop wind and earthquake design guideline for tall mass-timber
buildings in scope to 40-storey office or residential buildings. Outcome of this research
can directly feed into the code through the National Research Council’s wood program.
Investigators University of British Columbia
Timeline April 2018 to March 2019
Contact Solomon Tesfamariam, University of British Columbia, solomon.tesfamariam@ubc.ca
System Design and Construction
22. Acoustical Performance of Tall Wood Buildings (CA)
Description
Investigators National Research Council Canada
Timeline
Contact Jasmine Wang, National Research Council, Jasmine.Wang@nrc-cnrc.gc.ca
23. Actuarial Contribution to the Understanding of Insurable Risks Related to Non-residential High-rise Buildings
in CLT (CA)
Description The objective of this project is to identify the risk factors taken into account in the
pricing of an insurance contract for a construction site. This project aims to synthesize
the quantitative approaches used in practice and presented in academic research for
the pricing of home insurance and commercial insurance. Then, we aim to identify the
preventive measures that can be taken to reduce the impact of different perils in the
insurance of a construction site in wood or other.
Investigators Université Laval
Timeline
Contact Étienne Marceau, Université Laval, etienne.marceau@act.ulaval.ca
24. An Engineering Demonstration for a Mass Timber Affordable Housing Prototype for Large-Scale Urban
Deployment (US)
Description
Investigators Massachusetts Institute of Technology
Timeline
Contact
25. Assessment and Monitoring of Building Vibrations (CA)
Description
• Help improve designs of wood buildings for better comfort of occupants and
performance of sensitive equipment
• Advance the field of vibrations of wood buildings for the global timber engineering
community
Investigators FPInnovations
Timeline April 2018 to March 2019
Contact Sylvain Gagnon, FPInnovations, sylvain.gagnon@fpinnovations.ca
26. Biomimicry as a Generator of Optimal Volumetrics in Wood (CA)
Description The biomimetic approach in architecture explores the genius of organic natural forms
resulting from a long process of environmental adaptation. These forms often have a
high compactness and an optimal material / volume ratio in line with the importance of
RESEARCH IN PROGRESS 14reducing the material in the building to limit its environmental impact in terms of energy
and resources. What are the natural forms and processes of growth of the form most
appropriate to the physical properties of wood? What design process promotes the
integration of a biomimetic approach from the earliest stages of design? Based on a
review of the main achievements claiming this approach, this project will develop a
taxonomy of the different biomimetic typologies and identify the most promising in the
context of a wood realization. A digital manufacturing process will be developed to
reflect the complexity of natural shapes and flows in an organic architecture that
optimizes environmental performance and aesthetics.
Investigators Université Laval
Timeline
Contact André Potvin, Université Laval, andre.potvin@arc.ulaval.ca
27. CLT Handbook 2nd Canadian Edition (CA)
Description The CLT Handbook update will take into account additional research has taken place
globally and substantial regulatory changes since the first edition was published.
Although the most current codes and standards will be referenced, the 2nd edition will
include practices based on the state-of-the-art research that have been undertaken
worldwide to fill the information gaps. These practices are being considered by the
pertinent committees for inclusion in the next edition of the CSA O86 (likely to be
released in 2019) and the next editions of the National Building and National Energy
codes (NBCC and NECC, likely to be released in 2020). The CLT Handbook provides vital
“How to” information on CLT for the design and construction community and is a great
source of information for regulatory authorities, fire services and others. The CLT
Handbook is also a good textbook for university level timber engineering courses.
Investigators FPInnovations
Timeline 2018 to March 2019
Contact Erol Karacabeyli, FPInnovations, erol.karacabeyli@fpinnovations.ca
28. Composite Concrete-CLT Floor Systems for Tall Building Design (US)
Description This project will optimize the strength, stiffness, vibration characteristics, acoustic
qualities and fire resistance of cross-laminated floor systems utilizing a composite
concrete and cross-laminated timber product. This project includes development,
testing and optimization of an economical shear connector (to connect the CLT panel to
the concrete slab) that will be compared with existing screw and steel plate solutions.
The resulting prototype floor system will be tested at full scale.
Investigators TallWood Design Institute
Timeline
Contact Christopher Higgins, Oregon State University, chris.higgins@oregonstate.edu
29. Connections for Stackable Heavy Timber Modules in Midrise to Tall Wood Buildings (CA)
Description A 12-story timber building with stackable CLT modules will be analyzed by computer
modeling based on the information gathered in the test. A report detailing the design
procedure, test results, and simulation results will be developed at the end.
Investigators University of British Columbia
Timeline April 2018 to March 2019
Contact Frank Lam, University of British Columbia, frank.lam@ubc.ca
30. Cross-Laminated Timber Fasteners Solutions for Tall Wood Buildings (US)
Description Constructing buildings with CLT requires development of novel panel attachment
methods and mechanisms. Architects and engineers need to know the engineering
strength properties of connected panels, especially in an earthquake prone area. This
project will improve knowledge of three types of wall panel connections: wall-to-floor,
RESEARCH IN PROGRESS 15wall-to-wall, and wall-to-foundation. Testing will determine the strength properties of
metal connectors applied with diffferent types and sizes of screw fasteners. The data
will be used to develop a modeling tool that engineers can use when designing multi-
story buildings to be constructed with CLT panels.
Investigators TallWood Design Institute
Timeline
Contact Arijit Sinha, Oregon State University, arijit.sinha@oregonstate.edu
31. Development of a BIM Library for Wood Construction (CA)
Description The use of Building Information Modeling (BIM) models is not yet standardized. This
situation limits the scope of the tool and this is particularly the case for systems not
defined in the libraries of major BIM software. This results in a loss of productivity
because each stakeholder will redefine materials and/or systems to a level of
information corresponding to his own needs. This project aims, with the help of a
research professional, to develop a BIM library that can contain the main information
related to materials and systems to fully cover the needs of all users of the BIM model.
This library will be made available to the public and will facilitate the use of wood
systems by stakeholders.
Investigators Université Laval
Timeline
Contact Pierre Blanchet, Université Laval, pierre.blanchet@sbf.ulaval.ca
32. Development of Large Span CLT Floor/Roof System with Two-Way Plate Bending Action: Phase II (CA)
Description A continuous CLT floor/roof system that has two way bending action across multiple CLT
panels will create open floor space with long spans in both major and minor directions,
making mass timber construction more competitive and cost-effective. A design guide
on CLT two way floor/roof system, incorporating the results from the two phases of
study, will be developed at the end.
Investigators University of British Columbia
Timeline April 2018 to March 2019
Contact Frank Lam, University of British Columbia, frank.lam@ubc.ca
33. Development of Light Prefabricated Hybrid Structures for a High-Rise Multi-Storey Building with Emphasis
on Connections (CA)
Description Hybrid wood-concrete structures are emerging in the multi-storey wood building
market, as they provide effective solutions in terms of lightness, rigidity, vibration and
fire resistance (Yeoh et al., 2010, Dagenais et al., 2016). This project aims to reduce the
cost of these hybrid floors by reducing the time of construction by prefabrication
technology with emphasis on use. In addition, the goal is to explore the use of Ultra High
Performance Fiber Composite Concrete (UHPC) to reduce the thickness of the wood
slab, and also the use of ductile connections to increase the reliability of the floor (Habel
and Gauvreau). 2008, Zhang and Gauvreau 2014, Auclair-Cuerrier et al 2016a). Finally,
the concrete slab improves the diaphragm behavior of the floor to seismic actions.
Investigators Université Laval
Timeline
Contact Luca Sorelli, Université Laval, luca.sorelli@gci.ulaval.ca
34. Development of Robust Design Details for Improved Acoustics in Mass Timber Construction (CA)
Description To ensure the acoustic performance of wood constructions, the research group at the
Sustainable Building Institute at Napier University has established a series of proven
solutions. The advantage of this approach is to provide designers with solutions that
have been technically validated, thus allowing them to overcome the burden of
RESEARCH IN PROGRESS 16proposing to the manufacturer an acoustic solution. The tools to develop this concept
will involve an understanding of the propagation of impact and airborne noises in the
main CLT building design typologies, validating the main solutions through laboratory
testing and providing proven solutions. Many NRC (National Research Council of
Canada) trials could have been avoided. Conducting tests is expensive, and it would be
interesting to link the test results to the modeling results.
Investigators Université du Québec à Chicoutimi
Timeline
Contact Sylvain Ménard, Université du Québec à Chicoutimi, sylvain_menard@uqac.ca
35. Evaluation of CLT Connections for Seismic Design and Fire Performance in Mass Timber/Tall Wood Buildings
(Technical Guide) (CA)
Description The purpose of the technical guide is to confirm the use of nails, screws, bolts and rivets
in combination with steel angle brackets, and self-tapping screws as “energy dissipative
connections” in CLT structures that provide a level of performance equivalent to that
intended in the National Building Code of Canada (NBC) 2015, or other applicable codes.
It will outline the test protocol, the evaluation criteria and resulting design values to be
used with equations within the design standard, CSA 086, Engineering Design in Wood.
The technical guide will help to address the knowledge gaps surrounding the
behavioural properties of CLT connections, offer a means for municipal building officials
to validate the design of these connections and serve as a valuable resource for
designers undertaking the design of CLT based seismic systems.
Investigators National Research Council Canada, Canadian Construction Materials Centre
Timeline February 2018 to March 2019
Contact Philip Rizcallah, National Research Council,
Philip.Rizcallah@nrc-cnrc.gc.ca
36. Evaluation of Mobile Digital Tools to Monitor BIM Construction (CA)
Description Mobile digital tools (tablets and mobile phones) are ubiquitous in our lives. The
potential of the cameras of these tools is under-exploited if we consider the geo-spatial
information that they can provide to the information management systems (BIM) via
cloud platforms for example. The images captured by these cameras can be combined
with information from other sensors (gyroscope, accelerometers, etc.) and thus aligned
with a BIM model. Many of these technologies are commonly used for robotic
localization. The project would aim to assess whether current technologies could be
used to track construction progress and identify non-conformities. The project would
also determine the level of precision that can be achieved.
Investigators Université Laval
Timeline
Contact Jean-François Lalonde, Université Laval, jflalonde@gel.ulaval.ca
37. Lateral Load Capacity in a Solid Structure Assembled with Glued-in Rods (CA)
Description Assemblies with glued-in rods allow architectural freedom. They are in fact invisible
since they are found in the mass of the structural element. Some work has begun to
document this type of assembly by considering static tests in single-sided traction and
single-sided creep tests (Verdet, 2016). In order to continue this effort to specify the
limits of this type of assembly, it is proposed to consider the lateral forces for
assemblies with single and multiple rod connections. This project will therefore aim to
document the ability of these assemblies to carry lateral loads.
Investigators Université du Québec à Chicoutimi
Timeline
Contact Sylvain Ménard, Université du Québec à Chicoutimi, sylvain_menard@uqac.ca
RESEARCH IN PROGRESS 1738. Mass Timber and Wood Frame Study on Options for Schools in Metro Vancouver, British Columbia (CA)
Description This study will develop the base outline and framework for a generic Alternative
Solution for schools of a larger size and area than currently permitted under Division B
of the Code. The outline will include the involvement of a fire engineer to confirm that
there are no significant risks and provide a per project review.
Investigators Canadian Wood Council
Timeline April 2018 to March 2019
Contact Étienne Lalonde, Canadian Wood Council, elalonde@cwc.ca
39. Mechanically Fastened Cross-Laminated Timber System Feasibility (US)
Description Our feasibility study will document how mechanically fastened CLT panels can be
effectively produced to create structurally sound walls for residential construction and
other suitable applications. This information will be useful to designers and builders
interested in adopting the CLT system to create sustainable, energy-efficient, and cost-
effective structures from material that would otherwise be unsuitable for construction.
Investigators USDA Forest Service Forest Products Laboratory, University of Idaho, University of Utah,
Brigham Young University, Euclid Timber Frames, Acute Engineering
Timeline Mechanical results published, reports being prepared on hygrothermal performance
Contact David Kretschmann, dekretsc@facstaff.wisc.edu
Thomas Gorman, University of Idaho, tgorman@uidaho.edu
Ryan Smith, Washington State University, r.e.smith@wsu.edu
40. Multi-objective Optimization of the Ceiling-to-Floor System in a Wooden Building (CA)
Description The volume occupied by all components between the ceiling of a floor and the floor of
the upper floor (slab, ventilation duct, plumbing, etc.) is of great importance and it is
best to minimize its thickness. This project aims to develop a multi-objective
optimization strategy to design this sandwich type assembly according to various
structural, acoustic, thermal and mass transfer criteria (Alev and Kalamees, 2017), while
minimizing its volume, its size and its cost. and this, according to a given context. A case
study will be conducted to assess the degree of optimality of the solutions chosen.
Multidisciplinary tools facilitating the optimal design of this system will be proposed.
Investigators Université Laval
Timeline
Contact Louis Gosselin, Université Laval, Louis.Gosselin@gmc.ulaval.ca
41. Solutions for Acoustic Control of Mass Timber Floors and Walls (CA)
Description Advance the development of solutions to address the important issue of controlling and
minimizing sound transmission through walls and floors in wood buildings
Investigators FPInnovations
Timeline April 2018 to March 2019
Contact Sylvain Gagnon, FPInnovations, sylvain.gagnon@fpinnovations.ca
42. Topological Optimization of Ecological Tri-composite Floors in Lightweight Structural Wood, Ultra High
Performance Concrete and Polymeric Fibres (CA)
Description To minimize the built-in energy of the floor, we need to replace the current system with
lighter solutions that retain the key features for robustness and maintenance, and are
cost-effective and easy to build (Spadea et al., 2015). This project aims to explore
innovative flooring solutions that make up a light wood load-bearing structure
reinforced underneath by naturally occurring polymeric fibers (FRP) (Bencardino and
Condello 2016), which work well in tension, and above an Ultra-Thin Ultra High
Performance Concrete Slab (UHPC) that works exceptionally well in compression.
RESEARCH IN PROGRESS 18Considering the application of very large floors in multi-storey buildings, the following
key questions will be addressed: 1) what form should such a system have, 2) how will
this be analyzed, and what mode of failure will be desirable? (3) what practical
limitations would be imposed by constructability, (4) what would be the gain on
economic cost and environmental impact from a life cycle analysis point of view, and (5)
is possible to use biosourced epoxy for connections. The methodology consists of: (i)
systems analysis and shape optimization using finite element numerical techniques, (ii)
connection shear tests, and (iii) proof of concept on a beam prototype.
Investigators Université Laval
Timeline
Contact Luca Sorelli, Université Laval, luca.sorelli@gci.ulaval.ca
43. Use of Augmented Reality as a Tool for Valuing Wood Materials During the Design Phase - Architectural
Component (CA)
Description In the development of an architectural concept, the perception of the client is a key
element for acceptability. Wood often becomes a dominant architectural element.
While decision-making on the choice of materials is often subject to budgetary
considerations, it appears that the added value of wood in the building’s design, even
on the basis of preliminary sketches and models (physical or visual), is not adequately
delivered. The project proposes to explore augmented reality technology as a technique
allowing greater acceptability of wood material during the initial design phases. The
architectural component will explore the creative potential and quantify public
perception when subject to the use of wood material in augmented reality.
Investigators Université Laval
Timeline
Contact Jean-François Lalonde, Université Laval, jflalonde@gel.ulaval.ca
44. Use of BIM and IPD for the Improvement and Management of Fire Safety in High-Rise Construction in Solid
Wood (CA)
Description The objective is to explore the ability of new approaches such as Building Information
Modeling (BIM) and the Integrated Design Process (IPD) to: provide a more favorable
design framework for improvement fire safety in high-rise construction projects in solid
wood; make the best constructive choices through a constructability study assisted by
digital tools of virtual construction; perform more realistic simulations of fire behaviour
to better analyze risks and implement more effective management strategies.
Investigators ETS (École de technologie supérieure)
Timeline
Contact Conrad Boton, ETS, Conrad.Boton@etsmtl.ca
45. U.S. Mass Timber Floor Vibration Design Guide and Validation (US)
Description While it is widely recognized that floor vibration design is a primary driver of the framing
system costs, little information is readily available to U.S. designers on how to design
mass timber floors to best be competitive with the alternative material options (steel
and concrete).
Investigators KPFF, Inc (Portland Structural)
Timeline
Contact
RESEARCH IN PROGRESS 19Fire Performance
46. A New Approach to Classify the Degree of Combustibility of Materials (CA)
Description The use of materials in a building is traditionally determined from its combustibility (via
ULC S114 or ULC S135) and by its flame propagation index (via ULC S102). The ULC S102
Flame Spread Test, developed in 1943, has historically reduced risk through its method
of classifying materials. However, this test does not provide quantitative information on
the combustion properties of materials, such as heat flow. The latter is one of the most
important variables in the development of a fire. Thus, a new approach would be
preferable in order to review the classification of materials according to ULC S102 and
ULC S135 (cone calorimeter). The objective of this project is to develop a new approach
to classifying materials based on cone calorimeter test results. These results can
subsequently be used in numerical modeling as part of a fire safety engineering design.
A significant amount of cone calorimeter (ULC S135) testing of materials currently
evaluated according to ULC S102 will be required.
Investigators Université Laval
Timeline
Contact Christian Dagenais, Université Laval, Christian.Dagenais@sbf.ulaval.ca
47. Characterizing High Temperature Performance of Structural Adhesives (CA)
Description Structural engineered woods require the use of previously evaluated structural
adhesives in accordance with a variety of standard methods (ASTM D2559, ASTM
D7247, CSA O112.9, CSA O112.10, CSA O177, etc.). The basic assumption is that a
bonded engineered wood product will have a performance equivalent to, or better
than, the non-bonded product it replaces, regardless of the conditions of use (dry, wet,
fire, etc.). Nevertheless, the results of cross-laminated wood (CLT) fire tests have shown
that the requirements currently imposed on adhesives do not allow to limit lamellae
detachment when CLT is exposed to fire. Traditionally, this behavior is not observed for
glulam. It is essential to review the classification and performance criteria imposed on
adhesives by submitting them to the various tests currently standardized. The analysis
of the results may also be used to develop a new test method for adhesives exposed to
high temperatures, depending on the anticipated use of the engineered wood product.
Investigators Université Laval
Timeline
Contact Christian Dagenais, Université Laval, Christian.Dagenais@sbf.ulaval.ca
48. Compartment Fire Testing of Cross-Laminated Timber Structures (US)
Description Results of this testing will be shared with the ICC Ad Hoc Committee on Tall Wood
Buildings. The ad hoc committee was created by the ICC Board to explore the building
science of tall wood buildings and investigate the feasibility of developing code changes
for tall wood buildings. The results of this testing will allow the committee to evaluate
occupant and firefighter safety in realistic fire scenarios.
Investigators Bureau of Alcohol, Tobacco, Firearms, and Explosives, American Wood Council, USDA
Forest Service Forest Products Laboratory
Timeline May 2017 to December 2017
Contact David T. Sheppard, Bureau of Alcohol, Tobacco, Firearms, and Explosives,
David.T.Sheppard@usdoj.gov
Kuma Sumathipala, American Wood Council, KSumathipala@awc.org
Samuel L. Zelinka, Forest Products Laboratory, szelinka@fs.fed.us
49. Concrete Composite Floors Using Radiant Panel Tests (US)
Description In many mass timber buildings, CLT or nail laminated timber (NLT) floors are designed
with a concrete topping to improve acoustic separation, reduce vibration or act as a fire
RESEARCH IN PROGRESS 20barrier. Little research has examined the fire behavior of these floor systems, but some
preliminary tests involving LVL show that they may be able to meet three-hour fire
resistance ratings, which could potentially open up the use of mass timber in Type I
buildings, representing a large market opportunity. This project will test the behavior of
composite floors under fire loading conditions considering the following parameters:
shear connector type, mass timber panel types and thicknesses and concrete
thicknesses. It will also test and validate an innovative fire research methodology using
radiant panels.
Investigators TallWood Design Institute
Timeline
Contact Erica Fischer, Oregon State University, erica.fischer@oregonstate.edu
50. Evaluating Fire Performance of Nail Laminated Timber (CA)
Description The results could be used to
• support the approval and construction of current projects in British Columbia, as
well as update the Canadian NLT guide, and develop a fire resistance calculation
methodology applicable to NLGA for inclusion in CSA O86
• support the development of a fire-resistance calculation method
• confirm that NLT has a lower Flame Spread Rating (FSR) than standard thickness of
SPF board and achieve an official FSR
Investigators FPInnovations
Timeline April 2018 to March 2019, more detailed data analysis and modelling is anticipated in a
separate project in 2019/20
Contact Conroy Lum, FPInnovations, conroy.lum@fpinnovations.ca
51. Fire Penetration Testing (US)
Description In the U.S., there is limited published information about the performance of through-
penetration fire seals in cross-laminated timber floors, where the CLT is unprotected,
and exposed to the fire side. TDI has partnered with ARUP and the Framework project, a
12-story mass timber building project in Portland, to investigate and test through-
penetrations to the ASTM E814 standard. Penetration seals were designed for five
different types of penetrations–three-inch OD PVC pipe, four-inch OD stainless steel
pipe, four-inch OD cast iron pipe, two-inch OD aquatherm (PP-R), and a one-and-three-
fourths-inch threaded steel rod. The penetration seals were installed in five-ply CLT
samples produced in the Pacific Northwest.
Investigators Oregon State University
Timeline
Contact David Barber, ARUP, David.Barber@arup.com
Lech Muszynski, Oregon State University, lech.muszynski@oregonstate.edu
52. Fire Performance of Custom CLT Layups Utilizing Pine from Logs Harvested in Western Forest Restoration
Programs (US)
Description
Investigators Oregon State University
Timeline
Contact
53. Fire-Retardant-Treated Structural Glued Laminated Timber (Glulam) and Laminated Veneer Lumber (LVL)
(US)
Description It is expected that the results from this study will provide test data to support the
development of ASTM standards for FRT glulam and LVL.
Investigators USDA Forest Service Forest Products Laboratory, APA
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