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10 records – page 1 of 1.

Field Measurement of Vertical Movement and Roof Moisture Performance of the Wood Innovation and Design Centre

https://research.thinkwood.com/en/permalink/catalogue1182
Year of Publication
2018
Topic
Serviceability
Moisture
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
PSL (Parallel Strand Lumber)
Application
Wood Building Systems
Roofs
Author
Wang, Jieying
Organization
FPInnovations
Year of Publication
2018
Country of Publication
Canada
Format
Report
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
PSL (Parallel Strand Lumber)
Application
Wood Building Systems
Roofs
Topic
Serviceability
Moisture
Keywords
Vertical Movement
Moisture Content
Temperature
Relative Humidity
Monitoring
Language
English
Research Status
Complete
Summary
Two of the major topics of interest to those designing taller and larger wood buildings are the susceptibility to differential movement and the likelihood of mass timber components drying too slowly after they become wet during construction. The Wood Innovation and Design Centre in Prince George, British Columbia provides a unique opportunity for non-destructive...
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Free
Resource Link
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Field Measurement of Vertical Movement and Roof Moisture Performance of the Wood Innovation and Design Centre

https://research.thinkwood.com/en/permalink/catalogue1638
Year of Publication
2016
Topic
Moisture
Serviceability
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
PSL (Parallel Strand Lumber)
Application
Roofs
Wood Building Systems
Author
Wang, Jieying
Karsh, Eric
Finch, Graham
Chen, Mingyuk
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
PSL (Parallel Strand Lumber)
Application
Roofs
Wood Building Systems
Topic
Moisture
Serviceability
Keywords
Moisture Content
Vertical Movement
Temperature
Relative Humidity
Monitoring
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 3152-3160
Summary
The Wood Innovation and Design Centre (WIDC) in Prince George, British Columbia, with 6 tall storeys and a total height of 29.5 m, provided a unique opportunity for non-destructive testing and monitoring to measure the ‘As Built’ performance of a relatively tall mass timber building. The mass timber structural system consists of glulam columns and beams with cross laminated timber (CLT)...
Online Access
Free
Resource Link
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Field Measurement of Vertical Movement and Roof Moisture Performance of the Wood Innovation and Design Centre: Instrumentation and First Year's Performance

https://research.thinkwood.com/en/permalink/catalogue102
Year of Publication
2015
Topic
Design and Systems
Serviceability
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Application
Wood Building Systems
Author
Wang, Jieying
Organization
FPInnovations
Year of Publication
2015
Country of Publication
Canada
Format
Report
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Application
Wood Building Systems
Topic
Design and Systems
Serviceability
Keywords
Differential Movement
Long-term
Moisture
Plywood
Roofs
Shrinkage
Tall Wood
Vertical Movement
Language
English
Research Status
Complete
Summary
Two of the major topics of interest to those designing taller and larger wood buildings are the susceptibility to differential movement and the likelihood of mass timber components drying slowly after they are wetted during construction. The Wood Innovation and Design Centre in Prince George, British Columbia provides a unique opportunity...
Online Access
Free
Resource Link
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High Energy Performance Six-Storey Wood-Frame Building: Field Monitoring

https://research.thinkwood.com/en/permalink/catalogue1918
Year of Publication
2019
Topic
Energy Performance
Material
Timber (unspecified)
Application
Walls
Wood Building Systems
Roofs
Rooms
Author
Wang, Jieying
Organization
FPInnovations
Year of Publication
2019
Country of Publication
Canada
Format
Report
Material
Timber (unspecified)
Application
Walls
Wood Building Systems
Roofs
Rooms
Topic
Energy Performance
Keywords
Mid-Rise
Durability
Vertical Movement
Indoor Environmental Conditions
Language
English
Research Status
Complete
Summary
This monitoring study aims to generate field performance data from a highly energy efficient building in the west coast climate as part of FPInnovations’ efforts to assist the building sector in developing durable and energy efficient wood-based buildings. A six-storey mixed-use building, with five storeys of wood-frame residential construction on top of concrete commercial space was completed in early 2018 in the City of Vancouver. It was designed to meet the Passive House standard. The instrumentation aimed to gather field data related to the indoor environment, building envelope moisture performance, and vertical movement to address the most critical concerns among practitioners for such buildings.
Online Access
Free
Resource Link
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Moisture Performance and Vertical Movement Monitoring of Pre-Fabricated Cross-Laminated Timber: UBC Tallwood House

https://research.thinkwood.com/en/permalink/catalogue2276
Topic
Moisture
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Organization
Structure Monitoring Technology Ltd.
Country of Publication
Canada
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Moisture
Keywords
Monitoring
Vertical Movement
Brock Commons
Research Status
In Progress
Notes
Project contact is Gamal Mustapha at SMT Research Ltd.
Summary
This monitoring project evaluates the life cycle moisture performance of prefabricated CLT from manufacturing to installation into an 18-storey tall wood building.
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Monitoring Performance of Mass Timber Demonstration Buildings in Ontario

https://research.thinkwood.com/en/permalink/catalogue2286
Topic
Energy Performance
Application
General Application
Organization
FPInnovations
Country of Publication
Canada
Application
General Application
Topic
Energy Performance
Keywords
Monitoring
Vertical Movement
Energy Efficiency
Acoustics
Moisture Management
Research Status
In Progress
Notes
Project contact is Jean-Pierre Martel.
Summary
Set plans and requirements for monitoring vertical movement, energy efficiency, acoustics, and moisture management in demonstration buildings, and collaborate with the University of Ottawa for measuring structural characteristics of the demonstration buildings
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Quantifying the Impacts of Moisture and Load on Vertical Movement in a Simulated Bottom Floor of a 6-Storey Platform Frame Building

https://research.thinkwood.com/en/permalink/catalogue2619
Year of Publication
2013
Topic
Moisture
Design and Systems
Material
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Author
Wang, J.
King, L.
Organization
FPInnovations
Year of Publication
2013
Country of Publication
Canada
Format
Report
Material
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Topic
Moisture
Design and Systems
Keywords
Mid-Rise
Vertical Movement
Moisture Content
Shrinkage
Load-Induced Movement
Language
English
Research Status
Complete
Summary
Vertical movement of wood frame buildings has become an important consideration in recent years with the increase of building height in Europe, North America, and Asia up to 6-storeys. This movement is composed of wood shrinkage and load-induced movement including initial settlement and creep. It is extremely difficult to identify the relative contributions of these components while monitoring full size buildings. A laboratory test was therefore designed to do this under controlled environmental and loading conditions. Two identical small-scale platform frame structures with dimensional lumber floor joists were designed and constructed, with built-in vertical movement and moisture content monitoring systems. The two structures were first conditioned in a chamber to achieve an initial moisture content (MC) about 20% to simulate typical MC on exposed construction sites in wintertime in Coastal BC. After the two structures were moved from the conditioning chamber into the laboratory environment, using a unique cantilever system, Structure No. 1 was immediately loaded to measure the combined shrinkage and deformation in the process of drying. Structure No. 2 was not loaded until after the wood had dried to interior equilibrium moisture content to observe the shrinkage and load-induced movement separately. The load applied on the two structures simulated a dead load experienced by the bottom floor of a six-storey wood frame building. The vertical movement and MC changes were monitored over a total period of six months. Meanwhile, shrinkage coefficients were measured by using end-matched lumber samples cut from the plate members of the two structures to predict the shrinkage amounts of the horizontal members of the two structures. The results suggested that a load must be applied for movement to “show up” and occur in a downward direction. Without loads other than the wood weight, even shrinkage could show as upward movement. Monitoring of Structure No. 1 appeared to separate the contributions of wood shrinkage, initial settlement (bedding-in movement), and creep reasonably well. The entire movement amount reached about 19 mm after six months, which was comparable to the vertical movement measured from the bottom floor of a 4-storey wood-frame building in BC. Shrinkage accounted for over 60% of the vertical movement, with the other 40% contributed by load-induced movement including initial settlement and creep (when elastic compression was neglected); the magnitude of creep was similar to the initial settlement amount. Structure No. 2 showed less vertical movement but an increased settlement amount at the time of loading, indicating the presence of larger gaps between members when the wood was dry (with an estimated MC of 11%) before loading. Depending on construction sequencing, such settlement should occur with increase in loads during construction and can therefore be ignored in design. However, this test suggested that there may be a need to consider the impact of creep, in wet climates in particular, in addition to wood shrinkage. This laboratory test will be maintained for a longer period to observe any further vertical movement and the relative contributions of shrinkage and creep. Similar tests should be conducted for structures built with engineered wood floor joists, given the fact that most mid-rise platform buildings use engineered wood floor joists instead of lumber joists.
Online Access
Free
Resource Link
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Solutions for Upper Mid-Rise and High-Rise Mass Timber Construction: High Energy Performance Six-Storey Wood-Frame Building: Field Monitoring

https://research.thinkwood.com/en/permalink/catalogue2599
Year of Publication
2019
Topic
Energy Performance
Design and Systems
Material
Light Frame (Lumber+Panels)
PSL (Parallel Strand Lumber)
Application
Wood Building Systems
Author
Wang, Jieying
Organization
FPInnovations
Year of Publication
2019
Country of Publication
Canada
Format
Report
Material
Light Frame (Lumber+Panels)
PSL (Parallel Strand Lumber)
Application
Wood Building Systems
Topic
Energy Performance
Design and Systems
Keywords
Mid-Rise
High-Rise
Indoor Environmental Conditions
Durability
Vertical Movement
Language
English
Research Status
Complete
Summary
This monitoring study was initiated to collect performance data from a highly energy efficient, six-storey building located in the coastal climate of British Columbia. This work focuses on the following objectives by installing sensors during the construction: · To provide information about the indoor environment of a highly energy efficient building · To provide field data about the durability performance of an innovative high energy efficiency exterior wall solution for mid-rise wood-frame construction · To provide information on the amounts of vertical movement in wood-frame exterior walls and interior walls below a roof/roof deck
Online Access
Free
Resource Link
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Structural Performance Monitoring Technology and Data Visualization Tools and Techniques – Featured Case Study: UBC Tallwood House

https://research.thinkwood.com/en/permalink/catalogue2342
Year of Publication
2018
Topic
Moisture
Serviceability
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Application
Columns
Floors
Author
Mustapha, Gamal
Khondoker, Khaleed
Higgins, James
Year of Publication
2018
Country of Publication
Canada
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Application
Columns
Floors
Topic
Moisture
Serviceability
Keywords
Moisture Performance
Vertical Movement
Prefabrication
Language
English
Conference
International Conference on New Horizons in Green Civil Engineering
Research Status
Complete
Summary
Wood structures such as the Wood Innovation and Design Center in Prince George and the UBC Tallwood House, an 18 storey, 53-meter-tall mass timber hybrid building are examples of new and innovative wood structures that encompass new construction techniques, unique materials and novel building practices. Empirical data on the condition of critical components and access to the real-time status of the structure during construction gives Architects, Engineers and Contractors critical information to make informed decisions to either validate or improve the construction plan. Data recorded during the life of the building helps validate the design decisions and proves the viability and feasibility of the design. Methods and practices used to monitor both the moisture performance of prefabricated cross laminate timber (CLT) as well as the vertical movement sensing of the building during and after construction are explored in this paper. Moisture content of the CLT panels has been recorded from manufacturing and prefabrication to storage, through transport and during installation and will continue throughout the service life of the building. The calculated and expected displacement of the wood columns is scheduled to take several years as the structure settles, however a first-year analysis and extrapolation of the data was conducted. Monitoring during transport, storage, and construction proved that CLT panels were resilient to moisture issues while in the manufacturers storage, but prone to direct exposure to moisture-related problems regardless of the precautions taken on site. Despite construction during typical Pacific Northwest rain, informed decisions were made to ensure the panel moisture content could decrease to acceptable ranges before continuing to secondary construction phases. The moisture trends observed in the building were proportional to the control samples as both were subjected to similar environmental conditions.
Online Access
Free
Resource Link
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Vertical Movement Monitoring in Six-Storey Wood-Frame Building in British Columbia

https://research.thinkwood.com/en/permalink/catalogue1872
Year of Publication
2016
Topic
Moisture
Design and Systems
Application
Wood Building Systems
General Application

10 records – page 1 of 1.