Skip header and navigation

10 records – page 1 of 1.

Evaluating Fire Performance of Nail-Laminated Timber: Influence of Gaps

https://research.thinkwood.com/en/permalink/catalogue2093
Year of Publication
2019
Topic
Fire
Material
NLT (Nail-Laminated Timber)
Application
Wood Building Systems
Author
Ranger, Lindsay
Dagenais, Christian
Organization
FPInnovations
Year of Publication
2019
Country of Publication
Canada
Format
Report
Material
NLT (Nail-Laminated Timber)
Application
Wood Building Systems
Topic
Fire
Keywords
Charring
Gaps
Language
English
Research Status
Complete
Summary
The objective of this work is to generate fire performance data for NLT assemblies to address gaps in technical knowledge. This project aims to study how the size of gaps between NLT boards might affect charring of an assembly and its overall fire performance. This research will support designers and builders in the use of mass timber assemblies in larger and taller buildings, by ensuring fire safe designs.
Online Access
Free
Resource Link
Less detail

Solutions for Upper Mid-Rise and High-Rise Mass Timber Construction: Fire Resistance of Mass Timber Laminated Elements

https://research.thinkwood.com/en/permalink/catalogue2088
Year of Publication
2019
Topic
Fire
Application
Walls
Floors
Wood Building Systems
Author
Ranger, Lindsay
Dagenais, Christian
Bénichou, Noureddine
Organization
FPInnovations
Year of Publication
2019
Country of Publication
Canada
Format
Report
Application
Walls
Floors
Wood Building Systems
Topic
Fire
Keywords
Fire Resistance
Mid-Rise
High-Rise
Charring
Language
English
Research Status
Complete
Summary
This project assesses the fire resistance of laminated timber structural systems as wall and floor assemblies. Full-scale tests were conducted to assess structural fire resistance and charring behaviour. This research could be used to expand current fire design provisions and support inclusion of these types of assemblies into Annex B of CSA O86.
Online Access
Free
Resource Link
Less detail

Advanced Wood-Based Solutions for Mid-Rise and High-Rise Construction: Modelling of Timber Connections Under Force and Fire

https://research.thinkwood.com/en/permalink/catalogue1473
Year of Publication
2018
Topic
Connections
Fire
Seismic
Design and Systems
Material
LVL (Laminated Veneer Lumber)
Glulam (Glue-Laminated Timber)
Application
Beams
Author
Chen, Zhiyong
Ni, Chun
Dagenais, Christian
Organization
FPInnovations
Year of Publication
2018
Country of Publication
Canada
Format
Report
Material
LVL (Laminated Veneer Lumber)
Glulam (Glue-Laminated Timber)
Application
Beams
Topic
Connections
Fire
Seismic
Design and Systems
Keywords
Finite Element Model
Bolted Connection
Load-Displacement Curves
Language
English
Research Status
Complete
Summary
FPInnovations carried out a survey with consultants and researchers on the use of analytical models and software packages related to the analysis and design of mass timber buildings. The responses confirmed that a lack of suitable models and related information for material properties of timber connections was creating an impediment to the design and construction of this type of buildings. Furthermore, there is currently a lack of computer models and expertise for carrying out performance-based design for wood buildings, in particular seismic and/or fire performance design. In this study, a sophisticated constitutive model for wood-based composite material under stress and temperature was developed. This constitutive model was programmed into a user-subroutine which can be added to most general-purpose finite element software. The developed model was validated with test results of a laminated veneer lumber (LVL) beam and glulam bolted connection under force and/or fire.
Online Access
Free
Resource Link
Less detail

Fire Behavior Of Next Generation Of Cross-Laminated Timber: CLT Manufactured With SCL And Hardwood

https://research.thinkwood.com/en/permalink/catalogue371
Year of Publication
2016
Topic
Fire
Material
CLT (Cross-Laminated Timber)
LVL (Laminated Veneer Lumber)
LSL (Laminated Strand Lumber)
Application
Wood Building Systems
Author
Dagenais, Christian
Grandmont, Jean-Frédéric
Hasburgh, Laura
Organization
FPInnovations
Year of Publication
2016
Country of Publication
Canada
Format
Report
Material
CLT (Cross-Laminated Timber)
LVL (Laminated Veneer Lumber)
LSL (Laminated Strand Lumber)
Application
Wood Building Systems
Topic
Fire
Keywords
Aspen
Fire Behaviour
Charring Rate
ANSI/APA PRG-320
Manufacturing Parameters
Language
English
Research Status
Complete
Summary
The objective of this study is to evaluate the fire behavior of CLT manufactured with different types of SCL or lumber boards, namely with laminated veneer lumber (LVL), laminated strand lumber (LSL) and Trembling Aspen. The fire test data is also compared to those of CLT manufactured in accordance with ANSI/APA PRG-320 using solid-sawn lumber grades. More specifically, the study aims at evaluating the charring rates of this new generation of CLT panels as well as the impact of their manufacturing parameters.
Online Access
Free
Resource Link
Less detail

Advanced Wood-Based Solutions for Mid-Rise and High-Rise Construction: Exit Fire Separations in Mid-Rise Wood Buildings

https://research.thinkwood.com/en/permalink/catalogue1879
Year of Publication
2018
Topic
Fire
Material
CLT (Cross-Laminated Timber)
NLT (Nail-Laminated Timber)
Application
Shafts and Chases
Author
Ranger, Lindsay
Dagenais, Christian
Organization
FPInnovations
Year of Publication
2018
Country of Publication
Canada
Format
Report
Material
CLT (Cross-Laminated Timber)
NLT (Nail-Laminated Timber)
Application
Shafts and Chases
Topic
Fire
Keywords
National Building Code of Canada
Combustible Material
Mid-Rise
Noncombustible Construction
Language
English
Research Status
Complete
Summary
FPInnovations initiated this project to demonstrate the ability of wood exit stairs in mid-rise buildings to perform adequately in a fire when NBCC requirements are followed, with the intent of changing perceptions of the fire safety of wood construction. The objective of this research is to investigate further the fire safety afforded by exit stair shafts of combustible construction, with the ultimate objective of better consistency between the provincial and national building codes with respect to fire requirements for exit stair shafts in mid-rise wood-frame construction.
Online Access
Free
Resource Link
Less detail

Solutions for Upper Mid-Rise and High-Rise Mass Timber Construction: Fire Performance of Cross-Laminated Timber with Adhesives Conforming to 2018 edition of ANSI/APA PRG-320

https://research.thinkwood.com/en/permalink/catalogue2091
Year of Publication
2019
Topic
Fire
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Dagenais, Christian
Ranger, Lindsay
Bénichou, Noureddine
Organization
FPInnovations
Year of Publication
2019
Country of Publication
Canada
Format
Report
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Fire
Keywords
Mid-Rise
High-Rise
Adhesives
Temperature
Charring Rate
Language
English
Research Status
Complete
Summary
The objective of this research is to evaluate CLT face-bonded with adhesives that meet the new 2018 ANSI/APA PRG 320 with respect to elevated temperature requirements and their effects on the resulting charring rates when exposed to the standard time-temperature curve of CAN/ULC S101 (similar exposure to ASTM E119)...
Online Access
Free
Resource Link
Less detail

Advanced Wood-Based Solutions for Mid-Rise and High-Rise Construction: Mid-Rise Wood Exit Shaft Demonstration Fire Test Report

https://research.thinkwood.com/en/permalink/catalogue1176
Year of Publication
2018
Topic
Fire
Application
Shafts and Chases
Author
Ranger, Lindsay
Dagenais, Christian
Bénichou, Noureddine
Organization
FPInnovations
Year of Publication
2018
Country of Publication
Canada
Format
Report
Application
Shafts and Chases
Topic
Fire
Keywords
Mid-Rise
Residential
Multi-Family
Exit Shafts
Language
English
Research Status
Complete
Summary
FPInnovations conducted a research project to study the construction of mid-rise wood exit shafts in Ontario and Québec. The scope of the project included an investigation into the concerns that have been raised in regards to the use of wood exits in mid-rise buildings, an analysis of recent Canadian fire statistics in residential multi-family structures, and a fire demonstration of a mass timber wall and supported light-frame floor. This report describes the fire demonstration completed as part of this project; this report acts as a supplement to the full project report.
Online Access
Free
Resource Link
Less detail

Fire Performance of Cross-Laminated Timber Panel-to-Panel Joints

https://research.thinkwood.com/en/permalink/catalogue940
Year of Publication
2015
Topic
Fire
Connections
Material
CLT (Cross-Laminated Timber)
Application
Floors
Walls
Author
Dagenais, Christian
Organization
FPInnovations
Year of Publication
2015
Country of Publication
Canada
Format
Report
Material
CLT (Cross-Laminated Timber)
Application
Floors
Walls
Topic
Fire
Connections
Keywords
Failure
Panel-to-Panel
Fire Resistance
Language
English
Research Status
Complete
Summary
The current study aims at evaluating the integrity failure (i.e. passage of hot gases or flames through the assembly) of CLT assemblies connected together using four types of commonly used panel-to-panel joints when exposed to the standard CAN/ULC S101 “Standard Method of Fire Endurance Tests of Building Construction Materials” [1] fire resistance time-temperature curve. The four types of joints include: 1) half-lapped, 2) internal spline, 3) single surface spline and 4) double surface splines.
Online Access
Free
Resource Link
Less detail

Assessing the Fire Integrity Performance of Cross-Laminated Timber Floor Panel-To-Panel Joints

https://research.thinkwood.com/en/permalink/catalogue185
Year of Publication
2016
Topic
Connections
Fire
Material
CLT (Cross-Laminated Timber)
Application
Floors
Author
Dagenais, Christian
Organization
Carleton University
Year of Publication
2016
Country of Publication
Canada
Format
Thesis
Material
CLT (Cross-Laminated Timber)
Application
Floors
Topic
Connections
Fire
Keywords
Finite Element Model
Thickness
Codes
Panel-to-Panel
Joints
Canada
US
Fire Resistance
Language
English
Research Status
Complete
Summary
During the past few years, a relatively new technology has emerged in North America and changed the way professionals design and build wood structures: Cross-laminated Timber (CLT). CLT panels are manufactured in width ranging from 600 mm to 3 m. As such, fastening them together along their major strength axis is required in order to form a singular structural assembly resisting to in-plane and out-of-plane loading. Typical panel-to-panel joint details of CLT assemblies may consist of internal spline(s), single or double surface splines or half-lapped joints. These tightly fitted joint profiles should provide sufficient fire-resistance, but have yet to be properly evaluated for fire-resistance in CLT assemblies. The experimental portion of the study consisted at conducting ten (10) intermediate-scale fire-resistance tests of CLT floor assemblies with four (4) types of panel-to-panel joints and three (3) CLT thicknesses. The data generated from the intermediate-scale fire tests were used to validate a finite element heat transfer model, a coupled thermal-structural model and a simplified design model. The latter is an easy-to-use design procedure for evaluating the fire integrity resistance of the four commonly-used CLT floor assemblies and could potentially be implemented into building codes and design standards. Based on the test data and models developed in this study, joint coefficient values were derived for the four (4) types of CLT panel-to-panel joint details. Joint coefficients are required when assessing the fire integrity of joints using simple design models, such as the one presented herein and inspired from Eurocode 5: Part 1-2. The contribution of this study is to increase the knowledge of CLT exposed to fire and to facilitate its use in Canada and US by complementing current fire-resistance design methodologies of CLT assemblies, namely with respect to the fire integrity criterion. Being used as floor and wall assemblies, designers should be capable to accurately verify both the load-bearing and separating functions of CLT assemblies in accordance with fire-related provisions of the building codes, which are now feasible based on the findings of this study.
Online Access
Free
Resource Link
Less detail

Fire Safety Challenges of Tall Wood Buildings - Phase 2: Task 5 – Experimental Study of Delamination of Cross Laminated Timber (CLT) in Fire

https://research.thinkwood.com/en/permalink/catalogue1211
Year of Publication
2018
Topic
Fire
Connections
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Brandon, Daniel
Dagenais, Christian
Publisher
Fire Protection Research Foundation
Year of Publication
2018
Country of Publication
United States
Format
Report
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Fire
Connections
Keywords
Delamination
Adhesives
Compartment Fires
Tall Wood
Language
English
Research Status
Complete
Summary
Recent architectural trends include the design and construction of increasingly tall buildings with structural components comprised of engineered wood referred to by names including; cross laminated timber (CLT), laminated veneer lumber (LVL), or glued laminated timber (Glulam). These buildings are cited for their advantages in sustainability resulting from the use of wood as a renewable construction material. Previous research has shown that timber elements contribute to the fuel load in buildings and can increase the initial fire growth rate – potentially overwhelming fire protection system and creating more severe conditions for occupants, emergency responders, and nearby properties. The overarching goal of this project Fire Safety Challenges of Tall Wood Buildings Phase 2 (involving five tasks) is to quantify the contribution of CLT building elements (wall and/or floor-ceiling assemblies) in compartment fires and provide data to allow comparison of the performance of CLT systems against other building systems commonly used in tall buildings.
Online Access
Free
Resource Link
Less detail

10 records – page 1 of 1.