Skip header and navigation

3 records – page 1 of 1.

Quality Control and Quality Assurance in Hybrid Mass Timber High-Rise Construction: A Case Study of the Brock Commons

https://research.thinkwood.com/en/permalink/catalogue1272
Year of Publication
2018
Topic
Site Construction Management
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
PSL (Parallel Strand Lumber)
Application
Hybrid Building Systems
Author
Calderon, Francisco
Organization
University of British Columbia
Year of Publication
2018
Format
Thesis
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
PSL (Parallel Strand Lumber)
Application
Hybrid Building Systems
Topic
Site Construction Management
Keywords
Quality Control
Quality Assurance
Brock Commons
Reinforced Concrete
Concrete Core
Construction
Research Status
Complete
Summary
Wood has seen a resurgence recently as a construction material driven by technological advances and a growing concern for the environment. Although an increasing amount of mass timber high-rises are being built all around the world, lack of information and outdated preconceptions are some of the obstacles that are keeping mass timber products from increasing their market share in high-rise construction. Academia and industry leaders must keep track of the progress that is being made and inform the general public as innovation and technological advances continue to take place. In this context, the University of British Columbia has recently completed the construction of the Brock Commons Tallwood House. This 18-story residence building employs two reinforced concrete cores and a mass timber structure composed of cross laminated timber panels, glued-laminated columns, and parallel strand lumber columns. With this, the building is currently the tallest wood building in the world and a testament to the suitability of engineered wood elements for high-rise construction. Aiming to address the lack of information surrounding mass timber high rise construction, this thesis documents the quality assurance (QA) and quality control (QC) practices that were put in place during the delivery of the building. The main objective of this research was to identify and present lessons learned from the application of these QA/QC practices. To do this, various QA/QC practices were identified and analyzed by reviewing the project specifications and other project documents, reviewing recognized industry standards, and interviewing various members of the project team. This study found a series of comprehensive and well-planned QA/QC practices that were put in place by the project team and that were appropriate to comply with the project requirements. This study concluded that most of these practices are replicable and advisable for future projects. The different QA/QC practices that were identified and the lessons learned from their application are presented in this thesis.
Online Access
Free
Resource Link
Less detail

Selected previous findings on the factors influencing the gluing quality of solid wood products in timber construction and possible developments: A review

https://research.thinkwood.com/en/permalink/catalogue3279
Year of Publication
2021
Material
Glulam (Glue-Laminated Timber)
Author
Hänsel, Andreas
Sandak, Jakub
Sandak, Anna
Mai, Juana
Niemz, Peter
Organization
Saxon University of Cooperative Education
University of Primorska
Luleå University of Technology
ETH Zurich
Publisher
Taylor&Francis Online
Year of Publication
2021
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Keywords
Quality Control
Adhesives and Gluing
Research Status
Complete
Series
Wood Material Science & Engineering
Summary
Various factors affect the bonding quality of elements used for timber construction. This review includes literature studies and personal experiences related to relevant technological variables defining glue bond performance in glue-laminated timber elements during their service life. The gluing of hardwood species receives special focus as it is considered by the industry to be the most challenging process for implementation. In particular, the effects of wood species, type of adhesive, glued-wood surface quality, physical and/or chemical modification of the wood, technological solutions for gluing, and varying climatic conditions during the use phase (relative humidity, temperature, air circulation, etc.) are considered. In addition, overlapping of individual influencing factors often leads to problems with bonding, thus requiring strongly integrating measurement methods (e.g. NIR spectroscopy). The causes of variations in the results when glued wood is tested using different standardized methods are discussed. A list of open research questions is provided, and problem solutions are recommended based on systematized cutting-edge knowledge. The aim of the work is to systematize the state of knowledge of wood gluing to create a basis for controlled and stable manufacturing processes. The progress of the work will be reported in further publications.
Online Access
Free
Resource Link
Less detail

Using life cycle assessment to reduce environmental impacts in Canadian construction. A review of best regulatory practices

https://research.thinkwood.com/en/permalink/catalogue2910
Year of Publication
2020
Topic
Environmental Impact
Application
Wood Building Systems
Author
Grann, Blane
Mahalle, Lal
Organization
FPInnovations
Year of Publication
2020
Format
Report
Application
Wood Building Systems
Topic
Environmental Impact
Keywords
Life-Cycle Assessment
Construction
Quality Control
Qualitative Analysis
Regulations
Research Status
Complete
Summary
This report reviews life cycle assessment (LCA) based regulatory approaches that have been adopted in several countries to evaluate and improve environmental impacts of cosntruction products and buildings. Recommendations are provided for incorporating LCA into Canadian regulations (including the National Building Code of Canada), and for enhancing building LCA guidelines to address principles of consistency, simplicity, and representative data which can improve the effectiveness of LCA to achieve regulatory objectives. This work supports the project need of guidance for performance-based design to accelerate the introduction of wood-based systems. The findings of this review can be used to help accelerate the adoption of life cycle-based regulations for buildings and infrastructure in Canada.
Online Access
Free
Resource Link
Less detail