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64 records – page 1 of 7.

Adidas East Village Expansion – Innovative mass timber designs meet ambitious construction timeline

https://research.thinkwood.com/en/permalink/catalogue2996
Year of Publication
2020
Topic
General Information
Application
Wood Building Systems
Publisher
WoodWorks
Year of Publication
2020
Format
Report
Application
Wood Building Systems
Topic
General Information
Keywords
Case Study
Prefabrication
Moisture Management
Protection
Research Status
Complete
Summary
When Adidas announced plans for a two-building expansion of their North American headquarters, speed and budget were key criteria. They wanted a campus that reflected their culture and commitment to quality, authenticity and innovation, but had a strict 24-month deadline. In response, the design and construction team chose a hybrid of precast concrete and mass timber for one building, and a mass timber post-and-beam solution for the other, using prefabrication to reduce the construction schedule by more than three months.
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Free
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Advanced Industrialized Construction to Achieve High Building Energy Efficiency

https://research.thinkwood.com/en/permalink/catalogue2828
Year of Publication
2021
Topic
Energy Performance
Material
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Building Envelope
Author
Wang, Jieying
Organization
FPInnovations
Year of Publication
2021
Format
Report
Material
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Building Envelope
Topic
Energy Performance
Keywords
Prefabrication
Offsite Construction
Energy Efficiency
Retrofit
New Construction
Mid-Rise
Research Status
Complete
Series
InfoNote
Summary
Advanced industrialized construction methods enable complex building components and systems to be built with high precision and quality. This manufacturing technique has an advantage to provide cost-competitive and high energy efficient building components and systems for both retrofits and new construction. This document gives an overview of the use of prefabricated panels in building Net Zero Energy Ready wood-frame multi-unit residential buildings (MURBs) in Edmonton.
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Analysis of the Characteristics of External Walls of Wooden Prefab Cross Laminated Timber

https://research.thinkwood.com/en/permalink/catalogue2694
Year of Publication
2020
Topic
Energy Performance
Acoustics and Vibration
Material
CLT (Cross-Laminated Timber)
Application
Walls
Author
Švajlenka, Jozef
Kozlovská, Mária
Badida, Miroslav
Moravec, Marek
Dzuro, Tibor
Vranay, František
Publisher
MDPI
Year of Publication
2020
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
Walls
Topic
Energy Performance
Acoustics and Vibration
Keywords
Acoustic Properties
Thermal Properties
Prefabrication
Research Status
Complete
Series
Energies
Summary
A balanced combination of heat flows creates suitable conditions for thermal comfort—a factor contributing to the quality of the internal environment of buildings. The presented analysis of selected thermal-technical parameters is up-to-date and suitable for verifying the parameters of building constructions. The research also applied a methodology for examining the acoustic parameters of structural parts of buildings in laboratory conditions. In this research, selected variant solutions of perimeter walls based on prefab cross laminated timber were investigated in terms of acoustic and thermal-technical properties. The variants structures were investigated in laboratory but also in model conditions. The results of the analyses show significant differences between the theoretical or declared parameters and the values measured in laboratory conditions. The deviations of experimental measurements from the calculated or declared parameters were not as significant for variant B as they were for variant A. These findings show that for these analyzed sandwich structures based on wood, it is not always possible to reliably declare calculated values of thermal-technical and acoustic parameters. It is necessary to thoroughly examine such design variants, which would contribute to the knowledge in this field of research of construction systems based on wood.
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An Innovative Connection System for CLT Structures: Experimental - Numerical Analysis

https://research.thinkwood.com/en/permalink/catalogue460
Year of Publication
2014
Topic
Connections
Material
CLT (Cross-Laminated Timber)
Author
Polastri, Andrea
Angeli, Albino
Year of Publication
2014
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Topic
Connections
Keywords
Prefabrication
Self-Tapping Screws
X-RAD
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 10-14, 2014, Quebec City, Canada
Summary
The paper describes experimental and numerical analyses on a completely new connection system developed for CLT (Cross Laminated Timber) constructions. The innovative solution herein proposed, named X-RAD, consists of a point-to-point mechanical connection system, fixed to the corners of the CLT panels. This connection, that is designed to be prefabricated, is made of a metal wrapping and an inner hard wood element which are fastened to the panel by means of allthreaded self-tapping screws. Such system permits to reduce significantly the number of bolts/fasteners required to assemble two or more panels together or to connect them to the foundation. This results in the enhancement of the installation process in terms of speed, quality and safety. One of the reasons that fuelled the development of the presented system, is the desire of offering a solution to those issues (e.g. to satisfy ductility and energetic dissipation requirements) commonly related to the seismic safety of timber structures. In other words there was the will of defining a system able to guarantee an adequate level of ductility and energetic dissipation.
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Calculative Cost and Process Analysis of Timber-Concrete-Composite Ceilings with Focus on Effort and Performance Values for Cost Calculations of Multi-Storey Timber Buildings

https://research.thinkwood.com/en/permalink/catalogue1753
Year of Publication
2016
Topic
Cost
Material
Timber-Concrete Composite
CLT (Cross-Laminated Timber)
Application
Ceilings
Author
Koppelhuber, Joerg
Leitenbauer, Alexander
Heck, Detlef
Year of Publication
2016
Format
Conference Paper
Material
Timber-Concrete Composite
CLT (Cross-Laminated Timber)
Application
Ceilings
Topic
Cost
Keywords
Prefabrication
Multi-Storey
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 5006-5014
Summary
Composite structures use the advantages of two materials – timber and concrete – and improve the efficiency of a material application. Especially the concept of timber-concrete-composite ceilings has synergetic effects to achieve an effective ratio of thickness to span with high cost effectiveness simultaneously. Following the systematic...
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Case Study: An 18 Storey Tall Mass Timber Hybrid Student Residence at the University of British Columbia, Vancouver

https://research.thinkwood.com/en/permalink/catalogue2120
Year of Publication
2016
Topic
Design and Systems
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Fast, Paul
Gafner, Bernhard
Jackson, Robert
Li, Jimmy
Year of Publication
2016
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Design and Systems
Keywords
Tall Wood
Mass Timber
Rolling Shear
Prefabrication
Damping
Tolerances
Conference
World Conference on Timber Engineering
Research Status
Complete
Summary
This article outlines the structural design approach used for the Brock Commons Student Residence project, an 18-storey wood building at the University of British Columbia in Vancouver, Canada. When completed in summer 2017, it will be the tallest mass timber hybrid building in the world at 53 meters high. Fast + Epp are the structural engineers, working in conjunction with Acton Ostry Architects and Hermann Kaufmann Architekten. Total project costs, inclusive of fees, permits etc. are $51.5M CAD.
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Free
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CNC-Fabricated Dovetails for Joints of Prefabricated CLT Components

https://research.thinkwood.com/en/permalink/catalogue1124
Year of Publication
2014
Topic
Connections
Material
CLT (Cross-Laminated Timber)
Author
Robeller, Christopher
Hahn, Benjamin
Mayencour, Paul
Weinand, Yves
Publisher
Springer-Verlag
Year of Publication
2014
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Topic
Connections
Keywords
Prefabrication
CNC
Dovetail
Research Status
Complete
Series
Bauingenieur
Summary
The widely available automated prefabrication in timber construction companies, as well as modern CAD software with application programing interfaces, allow for the design and production of increasingly geometrically complex building components. This development also enables and demands at the same time advanced joinery techniques. Analog to the developments in timber framing, this article presents the adaptation of a traditional wood-wood joinery technique from cabinetmaking, on the casestudy of a shell structure built from curved cross-laminated timber (CLT) panels. The dovetail-joints allow for a load-bearing glued joint between the CLT panels. They provide an aesthetic, visible connection and simplify the assembly through their integrated locator features.
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Collaboration Enables Innovative Timber Structure Adoption in Construction

https://research.thinkwood.com/en/permalink/catalogue2007
Year of Publication
2018
Topic
Market and Adoption
Application
Wood Building Systems

Compression Perpendicular to Grain Behavior for the Design of a Prefabricated CLT Facade Horizontal Joint

https://research.thinkwood.com/en/permalink/catalogue1540
Year of Publication
2016
Topic
Connections
Design and Systems
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Hybrid Building Systems
Author
Gasparri, Eugenia
Lam, Frank
Liu, Yingyang
Year of Publication
2016
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Hybrid Building Systems
Topic
Connections
Design and Systems
Keywords
Envelope
Joints
Self-Tapping Screws
Finite Element Analysis
Prefabricated
Vertical Loads
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 1088-1098
Summary
The present work aims to define horizontal joint dimension tolerances for newly proposed prefabricated façade systems for applications in tall cross laminated timber (CLT) buildings based on the compression perpendicular to grain characteristics of the component. This requires a thorough understanding of structural settlement under vertical loads which can vary at each floor height. An experimental program has been carried out with reference to the case of a platform frame building construction, where major perpendicular to grain compression of the floor can occur under high loads. Five-layer CLT specimens have been tested under compression via the application of a line load with steel plate as well as actual CLT wall specimens. Strengthening contribution using full threaded self-tapping wood screws has also been investigated. Results of deformation characteristics have been validated through a non-linear finite element analysis and further elaborated in order to outline implications in the design of a prefabricated façade.
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Construction Management for Tall CLT Buildings: From Partial to Total Prefabrication of Façade Elements

https://research.thinkwood.com/en/permalink/catalogue224
Year of Publication
2015
Topic
Cost
Design and Systems
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Gasparri, Eugenia
Lucchini, Angelo
Mantegazza, Gabriele
Mazzucchelli, Enrico
Publisher
Taylor&Francis Online
Year of Publication
2015
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Cost
Design and Systems
Keywords
High-Rise
Prefabrication
Tall Wood
Research Status
Complete
Series
Wood Material Science & Engineering
Notes
http://dx.doi.org/10.1080/17480272.2015.1075589
Summary
Cross-Laminated Timber is one of the most widely used engineered wood products, thanks to its numerous advantages, among which construction speed is the most appreciated, both by clients and by designers. However, construction scheduling compression refers exclusively to CLT structures, while the rest of the construction process still requires a longer phase to complete vertical enclosures. The aim of the research work presented in this paper is to outline advantages brought about when the degree of envelope prefabrication of tall timber buildings is increased. Results are presented in two sections. The first includes the definition of a case study together with an overview of possible technical details for entirely prefabricated façade solutions, ready to be installed without the need to work via scaffolds. The second deals with construction site management analysis for the case study building, where the determination of specific factors having an influence on time and costs is achieved by varying the prefabrication degree of the various façade configurations and repeating the analysis process. The main findings of this research work demonstrate that comprehensive façade prefabrication allows not only consistent compression of construction scheduling to be achieved, but also for immediate protection of wooden elements from weather agents.
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64 records – page 1 of 7.