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30 records – page 2 of 3.

Full-Scale Mass Timber Shaft Demonstration Fire

https://research.thinkwood.com/en/permalink/catalogue3
Year of Publication
2015
Topic
Fire
Material
CLT (Cross-Laminated Timber)
Application
Shafts and Chases
Author
Dagenais, Christian
Su, Joseph
Ranger, Lindsay
Muradori, Sasa
Organization
FPInnovations
National Research Council of Canada
Year of Publication
2015
Format
Report
Material
CLT (Cross-Laminated Timber)
Application
Shafts and Chases
Topic
Fire
Keywords
Type X Gypsum Board
Origine
Fire Demonstration
Research Status
Complete
Summary
A full-scale demonstration dire was conducted at National Research Council Canada to show how a mass timber vertical shaft could withstand a severe fire exposure lasting at least two hours. The fire resistance tests and the demonstration fire were performed to support the approval and construction of a tall wood building in Quebec city; the building is planned to be 13 storeys which includes a 12-storey wood structure above a 1-storey concrete podium. An updated calculation methologody to determine the fire resistance of CLT is provided in Capter 8 (Fire) of the CLT Handbook.
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Free
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Full-Scale Standard Fire Resistance Test of a Wall Assembly for Use in Lower Storeys Of Mid-Rise Buildings

https://research.thinkwood.com/en/permalink/catalogue347
Year of Publication
2014
Topic
Fire
Material
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Author
Lafrance, Pier-Simon
Berzins, Robert
Leroux, Patrice
Su, Joseph
Lougheed, Gary
Organization
National Research Council of Canada
Year of Publication
2014
Format
Report
Material
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Topic
Fire
Keywords
Fire Resistance
Mid-Rise
Research Status
Complete
Summary
A research project, Wood and Wood-Hybrid Midrise Buildings, was undertaken to develop information to be used as the basis for alternative/acceptable solutions for mid-rise construction using wood structural elements. As one approach, encapsulation materials could be used to protect the combustible (wood) structural materials for a period of time in order to delay the effects of the fire on the combustible structural elements, including delay of ignition. In delaying ignition, any effects of the combustion of the combustible structural elements on the fire severity can be delayed. In some cases, and depending upon the amount of encapsulating material used (e.g. number of layers), ignition of the elements might be avoided completely. This scenario would primarily depend upon the fire event and the actual fire performance of the encapsulating materials used. The effectiveness of the encapsulation approach in limiting the involvement of wood structural materials in fires was demonstrated in the research project through bench-, intermediate- and full-scale fire experiments.
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Free
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A Literature Review of the State-of-Art in Fire Protection of Mid-Rise Wood Buildings Under Construction

https://research.thinkwood.com/en/permalink/catalogue1949
Year of Publication
2016
Topic
Fire
Site Construction Management
Material
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Author
Bwalya, Alex
Ko, Yoon
Lam, Cecilia
Kim, Andrew
Lougheed, Gary
Su, Joseph
Organization
National Research Council of Canada
Year of Publication
2016
Format
Report
Material
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Topic
Fire
Site Construction Management
Keywords
Mid-Rise
Construction
Research Status
Complete
Summary
This work was carried in support of NRC’s Mid-rise Wood Buildings (MRWB) program, whose objective is to improve the performance of mid-rise and tall wood buildings. The main objective of the work was to determine the scope for future research to develop new technologies to prevent, fight and mitigate the impacts of fire during construction. The work involved an extensive literature review and some discussions with potential stakeholders to understand their views, concerns and research needs. The literature review covered approximately 115 publications (including magazine and newspaper articles). The current literature clearly identifies the significant fire risks faced by wood buildings during the construction phase and there are numerous examples of fires that have occurred at wood building construction sites. The literature review revealed that the current state-of-the-art essentially encompasses the development and promotion of safe working practices and fire safety guidelines for mid-rise wood buildings under construction, which is being adequately addressed by many industry stakeholders. There is a lack of research and methods to address the critical areas of active and passive fire protection during construction. This is likely due to the fact that the acceptance of mid-rise and tall wood buildings has only happened recently and was largely based on the fact that the fire safety of finished buildings is assured by proven adequacy of their fire resistance design features, such as the encapsulation approach, and mandatory requirements for fire protection systems, such as sprinklers. Therefore, NRC can make a more valuable contribution in areas where its existing fire research expertise and unique test facilities can lead to the development of new knowledge to improve safety in mid-rise wood buildings under construction by undertaking research in the following areas identified by this study: 1. Characterization of construction site fires and evaluation of detection systems; 2. Evaluation and development of active fire protection systems/technologies applicable to construction sites; 3. Evaluation and development of passive fire protection systems/technologies applicable to construction sites; 4. Improvement of firefighting tactics using scientific knowledge of construction site fires and effective suppression technologies. The research can be undertaken in phases, with Phase 1 focusing on the characterization of mid-rise wood construction site fires, evaluation and development of fire detection and suppression systems. Subsequent phases of the project could address the evaluation and development of cost-effective passive protection systems and the improvement of firefighting tactics using the fire scenarios developed in Phase 1. Further details of the potential scope for research in the above areas are presented and discussed in this report.
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Nail Laminated Timber Compartment Fire Tests

https://research.thinkwood.com/en/permalink/catalogue2165
Year of Publication
2019
Topic
Fire
Design and Systems
Material
NLT (Nail-Laminated Timber)
Glulam (Glue-Laminated Timber)
Application
Rooms
Wood Building Systems
Author
Su, Joseph
Leroux, Patrice
Lafrance, Pier-Simon
Berzins, Rob
Gratton, Karl
Gibbs, Eric
Weinfurter, Mark
Publisher
National Research Council Canada
Year of Publication
2019
Format
Report
Material
NLT (Nail-Laminated Timber)
Glulam (Glue-Laminated Timber)
Application
Rooms
Wood Building Systems
Topic
Fire
Design and Systems
Keywords
Fire Tests
Compartment Fire Test
Encapsulated Mass Timber Construction
EMTC
Exposed Mass Timber Elements
Research Status
Complete
Summary
In early 2019, with funding support from Natural Resources Canada, the National Research Council Canada conducted a series of room scale fire tests of Encapsulated Mass Timber Construction (EMTC) with nail laminated timber (NLT) and Glulam structural elements. The goal of this test series is to quantify the contribution of NLT mass timber elements to compartment fires and to provide additional data as the technical basis for the amount of exposed mass timber elements to be allowed in EMTC buildings without significantly increasing the fire severity and duration.
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Free
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Solution for Mid-Rise Wood Construction: Apartment Fire Test with Encapsulated Lightweight Wood Frame Construction

https://research.thinkwood.com/en/permalink/catalogue344
Year of Publication
2014
Topic
Fire
Material
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Author
Taber, Bruce
Lougheed, Gary
Su, Joseph
Bénichou, Noureddine
Organization
National Research Council of Canada
Year of Publication
2014
Format
Report
Material
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Topic
Fire
Keywords
Mid-Rise
Encapsulation
Research Status
Complete
Summary
A research project, Wood and Wood-Hybrid Midrise Buildings, was undertaken to develop information to be used as the basis for alternative/acceptable solutions for mid-rise construction using wood structural elements. As part of this project, four large-scale fire experiments were conducted to evaluate the fire performance of two forms of encapsulated combustible structural wood systems, a lightweight wood-frame (LWF) system (2 experiments [3]) and a crosslaminated timber (CLT) system (1 experiment [4]). The fourth experiment [5] involved a test structure constructed using a steel frame system described below. Each experiment involved construction of a test set-up of an unsprinklered full-size apartment unit, intended to represent a portion of a mid-rise (e.g. six-storey) building. This report provides the results of the test with an encapsulated LWF setup representing an apartment in a mid-rise (e.g. six-storey) building.
Online Access
Free
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Solution for Mid-Rise Wood Construction: Full-Scale Standard Fire Resistance Tests of Wall Assemblies for Use in Lower Storeys of Mid-Rise Buildings

https://research.thinkwood.com/en/permalink/catalogue346
Year of Publication
2014
Topic
Design and Systems
Fire
Material
CLT (Cross-Laminated Timber)
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Walls
Author
Lafrance, Pier-Simon
Berzins, Robert
Leroux, Patrice
Su, Joseph
Lougheed, Gary
Bénichou, Noureddine
Organization
National Research Council of Canada
Year of Publication
2014
Format
Report
Material
CLT (Cross-Laminated Timber)
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Walls
Topic
Design and Systems
Fire
Keywords
Mid-Rise
Full Scale
Research Status
Complete
Summary
A research project, Wood and Wood-Hybrid Midrise Buildings, was undertaken to develop information to be used as the basis for alternative/acceptable solutions for mid-rise construction using wood structural elements. The effectiveness of the encapsulation approach in limiting the involvement of wood structural materials in fires was demonstrated in this research project through bench-, intermediate- and full-scale fire experiments. These results for encapsulated lightweight wood-frame (LWF) systems and encapsulated cross-laminated timber (CLT) systems are documented in a series of reports. In addition to developing the encapsulation approach for protecting the wood structural materials to meet the above code intent, research was undertaken to examine standard fire resistance of encapsulated wood structural assemblies for use in mid-rise wood/timber buildings. One of the major differences between structural LWF assemblies used in mid-rise wood buildings (5-6 storeys) and low-rise wood buildings (= 4 stories) is the wall assemblies for the lower storeys. For mid-rise wood buildings, loadbearing wall assemblies on the lower storeys have to be designed to resist higher axial loads due to the self-weight of the upper storeys, which often result in the need for larger-size stud members and/or a greater number of studs, and higher lateral loads in case of seismic events or wind loads, which often requires the use of wood shear panels within the wall assembly. These wall assemblies very often will need to meet standard fire resistance requirements, and therefore, information regarding their standard fire-resistance ratings should be developed. This report documents the results of fullscale furnace tests conducted to develop standard fire-resistance ratings of encapsulated LWF assemblies for use in mid-rise applications.
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Free
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Solutions for Mid-Rise Wood Construction: Apartment Fire Test with Encapsulated Cross Laminated Timber Construction

https://research.thinkwood.com/en/permalink/catalogue144
Year of Publication
2014
Topic
Fire
Material
CLT (Cross-Laminated Timber)
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Author
Taber, Bruce
Lougheed, Gary
Su, Joseph
Bénichou, Noureddine
Organization
National Research Council of Canada
Year of Publication
2014
Format
Report
Material
CLT (Cross-Laminated Timber)
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Topic
Fire
Keywords
Encapsulation
Large Scale
Mid-Rise
Testing
Timber-Steel Hybrid
Research Status
Complete
Summary
A research project, Wood and Wood-Hybrid Midrise Buildings, was undertaken to develop information to be used as the basis for alternative/acceptable solutions for mid-rise construction using wood structural elements. As part of this project, four large-scale fire experiments were conducted to evaluate the fire performance of two forms of encapsulated combustible structural wood systems, a lightweight wood-frame (LWF) system (2 experiments [3, 4]) and a crosslaminated timber (CLT) system (1 experiment). The fourth experiment [5] involved a test structure constructed using a steel frame system described below. Each experiment involved construction of a test set-up of an unsprinklered full-size apartment unit, intended to represent a portion of a mid-rise (e.g. six-storey) building. The structural elements used in the LWF system (wood stud walls and wood I-joist floors) and CLT system (3-ply wall panels and 5-ply floor panels) were all chosen on the basis of the types of construction that were currently being used in 5- and 6-storey mid-rise residential construction being built in the province of British Columbia, where the building code had changed earlier, in 2009, to permit such mid-rise combustible construction. This report provides the results of the experiment with an encapsulated CLT setup representing an apartment in a mid-rise (e.g. six-storey) building.
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Free
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Solutions for Mid-Rise Wood Construction: Cone Calorimeter Results for Acoustic Membrane Materials Used in Floor Assemblies (Report to Research Consortium for Wood and Wood-Hybrid Mid-Rise Buildings)

https://research.thinkwood.com/en/permalink/catalogue1951
Year of Publication
2014
Topic
Acoustics and Vibration
Material
Light Frame (Lumber+Panels)
Application
Floors

Solutions for Mid-Rise Wood Construction: Cone Calorimeter Results for Encapsulation Materials

https://research.thinkwood.com/en/permalink/catalogue351
Year of Publication
2014
Topic
Fire
Material
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Author
Bijloos, Martin
Lougheed, Gary
Su, Joseph
Bénichou, Noureddine
Organization
National Research Council of Canada
Year of Publication
2014
Format
Report
Material
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Topic
Fire
Keywords
Encapsulation
Cone Calorimeter
Mid-Rise
Research Status
Complete
Summary
A research project, Wood and Wood-Hybrid Midrise Buildings, was undertaken to develop information to be used as the basis for alternative/acceptable solutions for mid-rise construction using wood structural elements. As part of this project, three materials were selected for investigation as encapsulation materials for combustible structural elements: Type X gypsum board (12.7 mm thick and 15.9 mm thick), cement board (12.7 mm thick), and gypsum-concrete (25 mm thick and 39 mm thick). This report documents the results of cone calorimeter tests conducted to investigate the performance of the three encapsulation materials.
Online Access
Free
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Solutions for Mid-Rise Wood Construction: Cone Calorimeter Results for Materials Used In Standard Exterior Wall Tests

https://research.thinkwood.com/en/permalink/catalogue352
Year of Publication
2014
Topic
Fire
Material
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Walls
Author
Bijloos, Martin
Lougheed, Gary
Su, Joseph
Bénichou, Noureddine
Organization
National Research Council of Canada
Year of Publication
2014
Format
Report
Material
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Walls
Topic
Fire
Keywords
Mid-Rise
Exterior Wall
Cone Calorimeter
Research Status
Complete
Summary
One of the tasks in the project, Wood and Wood-Hybrid Midrise Buildings, was to develop further information and data for use in developing generic exterior wall systems for use in mid-A1-100035-01.3 3 rise buildings using either lightweight wood frame or cross-laminated timber as the structural elements. As a result, full-scale standard exterior wall assembly tests were conducted to CAN/ULC-S134. The foam insulations examined for use in the full-scale test assemblies were typical of those used in present-day construction. In addition, a non-standard test (Test EXTW-5) was conducted using a reduced scale rain screen wall system. In addition to the full-scale tests, cone calorimeter tests were conducted to select and characterize the foam insulation, water resistant barrier and FRT plywood materials, as well as the regular gypsum sheathing, used in the full-scale tests. Tests were also conducted with the foam insulations protected using the sheathing materials used in the full-scale tests. The results of the cone calorimeter tests are provided in this report.
Online Access
Free
Resource Link
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30 records – page 2 of 3.