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10 records – page 1 of 1.

Connections for Stackable Heavy Timber Modules in Midrise to Tall Wood Buildings

https://research.thinkwood.com/en/permalink/catalogue2087
Year of Publication
2019
Topic
Connections
Design and Systems
Seismic
Material
LVL (Laminated Veneer Lumber)
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Zhang, Chao
Lee, George
Lam, Frank
Organization
University of British Columbia
Year of Publication
2019
Country of Publication
Canada
Format
Report
Material
LVL (Laminated Veneer Lumber)
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Connections
Design and Systems
Seismic
Keywords
Modular
Intra-module Connection
Inter-module Vertical Connection
Inter-module horizontal Connection
Mid-Rise
Tall Wood
Screws
Load Transfer
Steel Angle Bracket
Stiffness
Strength
Ductility
Language
English
Research Status
Complete
Summary
In Phase I (2018-19) of this project on Prefabricated Heavy Timber Modular Construction, three major types of connections used in a stackable modular building were studied: intramodule connection, inter-module vertical connection, and inter-module horizontal connection. The load requirement and major design criteria were identified...
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Free
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Non-Uniformly Distributed Compression Perpendicular to the Grain in Steel-CLT Connections: Experimental and Numerical Analysis of Bearing Capacity and Displacement Behaviour

https://research.thinkwood.com/en/permalink/catalogue2363
Year of Publication
2019
Topic
Connections
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Ncube, Noah
Sabaa, Stephen
Publisher
Linnaeus University
Year of Publication
2019
Country of Publication
Sweden
Format
Thesis
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Connections
Keywords
Compression
Perpendicular to the Grain
Non-Uniformly Distributed
Finite Element
Load Configuration Factor
Steel Connections
Load
Language
English
Research Status
Complete
Summary
Previous studies have mainly focused on the behaviour of timber under uniformly distributed compression perpendicular to the grain (CPG) loads. However, there are many practical applications in which timber is loaded by non-uniformly distributed CPG loads. Different design and test codes like the Eurocode 5 (EC5), DIN 1052:2004, ASTM D143- 94 and EN-408:2010 only account for load configurations where timber is subjected to uniformly distributed loads. For specific uniformly distributed load (UDL) configurations the bearing capacity of timber (solid softwood timber or Glulam) in compression is adapted by using a load configuration factor (kc,90) according to EC5, the European code for design of timber structures. EC5 has no guidelines for cross-laminated timber (CLT) under UDL with the exception of the Austrian National Regulations for EC5. In this work, an experimental and numerical study on the bearing capacity and displacement behaviour of CLT subjected to non-uniformly distributed loading (NuDL) is conducted on eight different load configurations. A steel-CLT connection in which the CLT is partially loaded is used in this study. Finite element modelling, performed using the commercial software Abaqus CAE is used as the numerical simulation of the experimental study and is validated by experimental results. Load configuration factors (kc,90) from experimental results are compared with values from the Swedish CLT handbook (KL-Trähandbok). The outcome of the study shows that load configuration factor for NuDL cases is higher than for UDL cases. Hence, for same load configurations a lower CPG strength is required in NuDL than in UDL. Moreover, numerical results feature overall good congruence with the elastic phase of the experiments and have the potential to augment experiments in further understanding other complex steel-CLT connections
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VaproShield Mass Timber Building Enclosure Design Guide

https://research.thinkwood.com/en/permalink/catalogue2347
Year of Publication
2019
Topic
Moisture
Design and Systems
Material
CLT (Cross-Laminated Timber)
Application
Building Envelope
Author
Brown, Bailey
Finch, Graham
DiPlacido, Adam
Organization
RDH Building Science
Year of Publication
2019
Country of Publication
United States
Format
Book/Guide
Material
CLT (Cross-Laminated Timber)
Application
Building Envelope
Topic
Moisture
Design and Systems
Keywords
Mass Timber
Air Barrier Membrane
Roof Underlayments
Enclosure Design
Water-Resistive Barrier
Language
English
Research Status
Complete
Summary
Mass timber and CLT construction offers many advantages, such as enhanced modularity, reduced construction schedules, improved thermal performance, and material sustainability. However, mass timber’s propensity to absorb moisture from the environment and the relative vapor impermeability of CLT panels introduces unique challenges when incorporated with the building enclosure. These challenges should be considered during design and construction phases to ensure long-term performance. The VaproShield Mass Timber Building Enclosure Design Guideline covers the best practices for the design and construction of high-performance CLT wall and roof assemblies. RDH is the principal author and editor of the guide and within its capacity, we do not purport to endorse any specific material or technical matter within this guide.
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A Case Study on The Construction of a CLT Building Without a Preliminary Roof

https://research.thinkwood.com/en/permalink/catalogue2185
Year of Publication
2019
Topic
Moisture
Design and Systems
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Liisma, Eneli
Liseth Kuus, Babette
Kukk, Villu
Kalamees, Targo
Publisher
Kaunas University of Technology
Year of Publication
2019
Country of Publication
Lithuania
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Moisture
Design and Systems
Keywords
Moisture Safety
Building Quality
Building Technology
Moisture Content
Language
English
Research Status
Complete
Series
Journal of Sustainable Architecture and Civil Engineering
Notes
DOI link: https://doi.org/10.5755/j01.sace.25.2.22263
ISSN
2335–2000
Online Access
Free
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Disproportionate Collapse Mitigation in Tall Mass Timber Buildings

https://research.thinkwood.com/en/permalink/catalogue2574
Year of Publication
2019
Topic
Design and Systems
Author
Daneshvar, Hossein
Chui, Ying Hei
Year of Publication
2019
Country of Publication
Canada
Format
Conference Paper
Topic
Design and Systems
Keywords
Tall Timber Buildings
Collapse
Structural Robustness
Performance
Safety
Language
English
Conference
Modular and Offsite Construction Summit
Research Status
Complete
Online Access
Free
Resource Link
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Wind and Earthquake Design Framework for Tall Wood-Concrete Hybrid System

https://research.thinkwood.com/en/permalink/catalogue2143
Year of Publication
2019
Topic
Seismic
Wind
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Tesfamariam, Solomon
Bezabeh, Matiyas
Skandalos, Konstantinos
Martinez, Edel
Dires, Selamawit
Bitsuamlak, Girma
Goda, Katsuichiro
Year of Publication
2019
Country of Publication
Canada
Format
Report
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Seismic
Wind
Keywords
Tall Wood
Seismic design factors
Wind tunnel test
Ductility Factors
Timber-reinforced concrete
Force Modification Factors
Probabilistic Model
Wind Load
Overstrength seismic force
Language
English
Research Status
Complete
Notes
DOI 10.14288/1.0380777
Summary
Advancement in engineered wood products altered the existing building height limitations and enhanced wooden structural members that are available on the market. These coupled with the need for a sustainable and green solution to address the ever-growing urbanization demand, avails wood as possible candidate for primary structural material in the construction industry. To this end, several researches carried out in the past decade to come up with sound structural solutions using a timber based structural system. Green and Karsh (2012) introduced the FFTT system; Tesfamariam et al. (2015) developed force-based design guideline for steel infilled with CLT shear walls, and SOM (2013) introduced the concrete jointed mass timber hybrid structural concepts. In this research, the basic structural concepts proposed by SOM (2013) is adopted. The objective of this research is to develop a wind and earthquake design guideline for concrete jointed tall mass timber buildings in scope from 10- to 40-storey office or residential buildings. The specific objective of this research is as follow: Wind serviceability design guideline for hybrid mass-timber structures. Calibration of design wind load factors for the serviceability wind design of hybrid tall mass timber structures. Guidelines to perform probabilistic modeling, reliability assessment, and wind load factor calibration. Overstrength related modification factor Ro and ductility related modification factor Rd for future implementation in the NBCC. Force-based design guideline following the capacity based design principles.
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Structural Fire Design-Statement on the Design of Cross-Laminated Timber (CLT)

https://research.thinkwood.com/en/permalink/catalogue2398
Year of Publication
2019
Topic
Fire
Design and Systems
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Schmid, Joachim
Werther, Norman
Klippel, Michael
Frangi, Andrea
Publisher
Juniper Publishers
Year of Publication
2019
Country of Publication
United States
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Fire
Design and Systems
Keywords
Fire Safe Design
Fire Characteristics
Building Codes
Language
English
Research Status
Complete
Series
Civil Engineering Research Journal
Online Access
Free
Resource Link
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Design Options for Three- and Four-Storey Wood School Buildings in British Columbia

https://research.thinkwood.com/en/permalink/catalogue2373
Year of Publication
2019
Topic
Design and Systems
Material
CLT (Cross-Laminated Timber)
NLT (Nail-Laminated Timber)
DLT (Dowel Laminated Timber)
Glulam (Glue-Laminated Timber)
Other Materials
Application
Wood Building Systems
Author
Bevilacqua, Nick
Dickof, Carla
Wolfe, Ray
Gan, Wei-Jie
Embury-Williams, Lynn
Organization
Fast + Epp
Wood Works! BC
Thinkspace
Year of Publication
2019
Country of Publication
Canada
Format
Report
Material
CLT (Cross-Laminated Timber)
NLT (Nail-Laminated Timber)
DLT (Dowel Laminated Timber)
Glulam (Glue-Laminated Timber)
Other Materials
Application
Wood Building Systems
Topic
Design and Systems
Keywords
Construction
Education
School Buildings
Mass Timber
Multi-Storey
Building Code
Fire Protection
Language
English
Research Status
Complete
Summary
This study illustrates the range of possible wood construction approaches for school buildings that are up to four storeys in height. As land values continue to rise, particularly in higher-density urban environments, schools with smaller footprints will become increasingly more necessary to satisfy enrollment demands. There are currently a number of planned new school projects throughout British Columbia that anticipate requiring either three-or four-storey buildings, and it is forecasted that the demand for school buildings of this size will continue to rise. This study is closely related to the report Risk Analysis and Alternative Solution for Three- and Four-Storey Schools of Mass Timber and/or Wood-Frame Construction prepared by GHL Consultants, which explores the building code related considerations of wood construction for school buildings that are up to four storeys in height. Though wood construction offers a viable structural material option for these buildings, the British Columbia Building Code (BCBC 2018) currently limits schools comprised of wood construction to a maximum of two storeys, while also imposing limits on the overall floor area. As such, the reader is referred to the GHL report for further information regarding building code compliance (with a particular emphasis on fire protection) for wood school buildings.
Online Access
Free
Resource Link
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Mass Timber in High-Rise Buildings: Modular Design and Construction

https://research.thinkwood.com/en/permalink/catalogue2390
Year of Publication
2019
Topic
Design and Systems
Fire
Application
Wood Building Systems
Author
Dorrah, Dalia
Publisher
Sidewalk Labs Toronto
Year of Publication
2019
Country of Publication
Canada
Format
Report
Application
Wood Building Systems
Topic
Design and Systems
Fire
Keywords
Modularization
Fire Safety
Construction Risks
Case Study
Modular Construction
Challenges
Language
English
Research Status
Complete
Summary
The costs of mass timber may be higher, but the added premium on their prices make them economically feasible. Beyond the economics, mass timber structures present a unique opportunity to develop and test the resiliency of the owner organization and its capacity to innovate. A collective effort to strengthen the supply chain in Ontario (especially the manufacturing stage) is one of the key tools to reduce costs. Having a dedicated fire consulting firm and the early engagement of regulatory bodies and consecrators are some of the key means to control risks in this domain. Earlier projects relied on covering/insulating mass timber sections to achieve the required fire requirements. Increasingly, charring is becoming an acceptable means for fire protection. Using Integrated Project Delivery system (IPD) and Building Information Modeling (BIM) can provide the contractual and technical platforms to boost coordination and promote collaborative design and construction.
Online Access
Free
Resource Link
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Experimental Study of the Uniaxial Stress-strain Relationships of Parallel Strand Bamboo in the Longitudinal Direction

https://research.thinkwood.com/en/permalink/catalogue2515
Year of Publication
2019
Topic
Design and Systems
Mechanical Properties
Material
PSL (Parallel Strand Lumber)
Other Materials
Application
Wood Building Systems

10 records – page 1 of 1.