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119 records – page 1 of 12.

Advanced Topics in Seismic Analysis and Design of Mid-Rise Wood-Frame Structures

https://research.thinkwood.com/en/permalink/catalogue1773
Year of Publication
2016
Topic
Design and Systems
Material
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Author
Ni, Chun
Popovski, Marjan
Wang, Jasmine
Karacabeyli, Erol
Year of Publication
2016
Format
Conference Paper
Material
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Topic
Design and Systems
Keywords
Mid-Rise
Dynamic Analysis
Deflection
Diaphragm
National Building Code of Canada
Capacity-Based Design
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 5343-5351
Summary
The following topics in the field of seismic analysis and design of mid-rise (5- and 6-storey) wood-frame buildings are included in this paper: Determination of the building period, linear dynamic analysis of wood-frame structures, deflections of stacked multi-storey shearwalls, diaphragm classification, capacity-based design for woodframe...
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Affordances of Complexity: Evaluation of a Robotic Production Process for Segmented Timber Shell Structures

https://research.thinkwood.com/en/permalink/catalogue1913
Year of Publication
2018
Topic
Design and Systems
Material
CLT (Cross-Laminated Timber)
Light Frame (Lumber+Panels)
Application
Shell Structures
Author
Krieg, Oliver David
Bechert, Simon
Groenewolt, Abel
Horn, Rafael
Knippers, Jan
Menges, Achim
Publisher
Intergrated Digital Conference (INDICO)
Year of Publication
2018
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Light Frame (Lumber+Panels)
Application
Shell Structures
Topic
Design and Systems
Keywords
Robotic Fabrication
Computational Design
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 20-23, 2018, Seoul, Republic of Korea
Summary
In this paper, possibilities and challenges of novel robotic manufacturing processes for segmented timber shells are presented and evaluated. This is achieved by comparing two newly developed construction systems for segmented plate structures: one system consisting of cross-laminated timber elements that are connected with crossing screws, and one system consisting of light-weight, hollow components with finger joints as well as bolted connections. Segmented timber shells are introduced as an emerging structural typology transitioning from applied research to the building industry, enabled by new developments in computational design and digital fabrication methods. Although the two construction systems share their underlying segmentation strategy, they differ in their joint design approach and ensuing fabrication complexity. While the first construction system can be produced with conventional machining technology in the timber industry, the second system was developed in conjunction with innovative robotic manufacturing methods. In order to evaluate the relationships and trade-offs of fabrication complexity and performance, the two systems are compared on a range of metrics, including material use, environmental impact and costs.
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Analysis Guidance for Cross-Laminated Timber Construction Exposed to Airblast Loading

https://research.thinkwood.com/en/permalink/catalogue2926
Year of Publication
2019
Topic
General Information
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Weaver, Mark
Organization
WoodWorks
Year of Publication
2019
Format
Report
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
General Information
Keywords
Explosions
Blast Load
Protective Design
Blast-resistance
Response Limits
Research Status
Complete
Summary
Buildings constructed for the U.S. Department of Defense (DoD) often have to meet blast-resistance requirements to mitigate the potential effects of terrorism. Terrorism is also a growing threat for civilian buildings (e.g., iconic structures, corporate headquarters, etc.), necessitating more building designers to incorporate blast resistance into their designs. The emergence of mass timber construction, and cross-laminated timber (CLT) in particular, offers a sustainable building material alternative that can also meet blast-resistance criteria in many circumstances.
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An integrated design tool for timber plate structures to generate joints geometry, fabrication toolpath, and robot trajectories

https://research.thinkwood.com/en/permalink/catalogue2959
Year of Publication
2021
Topic
Connections
Application
Wood Building Systems
Author
Rogeau, Nicolas
Latteur, Pierre
Weinand, Yves
Organization
École Polytechnique Fédérale de Lausanne
Swiss Federal Institute of Technology in Zurich
Louvain School of Engineering
Publisher
Elsevier
Year of Publication
2021
Format
Journal Article
Application
Wood Building Systems
Topic
Connections
Keywords
Integrated Design
Timber Plate Structures
Wood Joints
Digital Fabrication
CNC Machining
Robotic Assembly
Robotic Arm
Modular Assembly
Assembly Sequence
Insertion Vector
Research Status
Complete
Series
Automation in Construction
Summary
This paper presents an integrated design tool for structures composed of engineered timber panels that are connected by traditional wood joints. Recent advances in computational architecture have permitted to automate the fabrication and assembly of such structures using Computer Numerical Control (CNC) machines and industrial robotic arms. While several large-scale demonstrators have been realized, most developed algorithms are closed-source or project-oriented. The lack of a general framework makes it difficult for architects, engineers and designers to effectively manipulate this innovative construction system. Therefore, this research aims at developing a holistic design tool targeting a wide range of architectural applications. Main achievements include: (1) a new data structure to deal with modular assemblies, (2) an analytical parametrization of the geometry of five timber joints, (3) a method to generate CNC toolpath while integrating fabrication constraints, and (4) a method to automatically compute robot trajectories for a given stack of timber plates.
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Arch - Mid-Rise Mass Timber in the Contemporary Workplace

https://research.thinkwood.com/en/permalink/catalogue3092
Year of Publication
2020
Topic
Design and Systems
Author
Griffiths, Shannon
Organization
Victoria University of Wellington
Year of Publication
2020
Format
Thesis
Topic
Design and Systems
Keywords
Architectural Design
Mid-rise Office Building
Research Status
Complete
Summary
Mass timber, proven to be a sustainable and attractive material for urban construction has found little success in the mid-rise market and even less so in the commercial sector. Imitating the structural language of traditional steel and concrete material systems, the inherent material properties and tectonics of mass timber have not been fully explored to the detriment of its wider adoption. Similarly, contemporary workplace concepts such as Activity Based Working (ABW), although aiming to facilitate the diverse activities that take place in the office, the architectural implications of this planning system are typically not well considered and have little interaction with the structural system. In response, this design led research seeks to develop the interaction between mass timber structure and workplace planning at a urban mid-rise scale, suggesting ways mass timber, as a unique architectural language, can change future workplace design. This research curated a large body of work critiquing existing precedents and exploring methods of mass timber implementation in contemporary workplaces through design. Drawing on this body of work, three prototype designs were developed to a preliminary level and one final design to a detailed resolution on 55 Vivian Street, Te Aro, Wellington. The developed case study design concludes with a panellised layered arched mass timber structure, proposing a radical shift in the current tectonic language utilised in commercial mass timber buildings. Embracing the inherent properties of mass timber, the architectural expression revolves around complex interactions with the urban context, a varied structural planning grid, integrated façade and ABW furniture systems. The case study design demonstrates how sustainable technologies are not only appropriate, but beneficial for the future of the urban contemporary workplace and the adoption of ABW concepts. And that expressing the properties of mass timber can lead to unique approaches to the structure, creating opportunities to express the tectonics of mass timber at all levels of architectural design: the urban, planning and detail.
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Assessment of Dynamic Characteristics of Multi-Storey Timber Buildings

https://research.thinkwood.com/en/permalink/catalogue1786
Year of Publication
2016
Topic
Acoustics and Vibration
Mechanical Properties
Seismic
Material
CLT (Cross-Laminated Timber)
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Author
Hummel, Johannes
Seim, Werner
Year of Publication
2016
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Light Frame (Lumber+Panels)
Application
Wood Building Systems
Topic
Acoustics and Vibration
Mechanical Properties
Seismic
Keywords
Natural Frequency
Multi-Storey
Force-Based Design
Stiffness
Deformation
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 5819-5828
Summary
This paper discusses the impact of the natural frequency of multi-storey timber structures, focusing on force-based seismic design. Simplified approaches to determine the frequency of light-frame and cross-laminated timber structures are investigated. How stiffness parameters for simple two-dimensional analysis models can be derived from the different contributions of deformation...
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Basis of Design - Performance-Based Design and Structural CD Drawings for Framework Office Building in Portland, OR

https://research.thinkwood.com/en/permalink/catalogue1827
Year of Publication
2017
Topic
Design and Systems
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Application
Wood Building Systems
Organization
KPFF Consulting Engineers
Year of Publication
2017
Format
Report
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Application
Wood Building Systems
Topic
Design and Systems
Keywords
Structural
Wind Load
Sustainability
Reliability
Seismic
Earthquake Resistance
Serviceability
Design
Research Status
Complete
Series
Framework: An Urban + Rural Design
Notes
Document includes 100% CD construction drawings
Summary
This document outlines the basis of design for the performance-based design and nonlinear response history analysis of the Framework Project in Portland, OR. It is intended to be a living document that will be modified and revised as the project develops and in response to peer review comments. Performance-based design is pursued for this project because the proposed lateral force-resisting system, consisting of post-tensioned rocking cross-laminated timber (CLT) walls is not included in ASCE/SEI 7-10 Table 12.2-1. Lateral force-resisting systems included in ASCE/SEI 7-10 Table 12.2-1 may be designed for earthquake effects using the prescriptive provisions in ASCE/SEI 7- 10. Lateral force-resisting systems not included are still permitted but must be demonstrated to have performance not less than that expected for included systems. This option is available via the performance-based procedures of ASCE/SEI 7-10 Section 1.3.1.3. Note that lateral forceresisting systems for wind effects are not restricted in ASCE/SEI 7-10. Therefore, design for wind effects will still be approached within the performance-based design framework but in a more state-of-the-practice manner.
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Free
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Biophilic Design LookBook

https://research.thinkwood.com/en/permalink/catalogue2995
Topic
Design and Systems
Application
Wood Building Systems
Publisher
Think Wood
WoodWorks
Format
Book/Guide
Application
Wood Building Systems
Topic
Design and Systems
Keywords
Wood Finishes
Biophilic Design
Healthy Buildings
Exposed Wood
Research Status
Complete
Summary
Americans spend about 90 percent of their time inside. As a result, building professionals are rethinking how people design, use and occupy buildings. Biophilic design is increasingly used to boost occupant well-being through connection to nature and the use of natural elements like daylight, plants, water and exposed wood. These elements have been attributed to positive outcomes in humans—from reducing stress to boosting productivity. Today, this emerging trend is increasingly a market expectation, with tenants seeking sustainable, functional and aesthetically pleasing features throughout their offices, homes, retail and hospitality spaces. Published jointly with our partners at Think Wood, this engaging and stunning LookBook considers the role of wood in the context of biophilic design principles.
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Free
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Buckling-restrained Braced Frames for Seismically Resilient Mass Timber Buildings

https://research.thinkwood.com/en/permalink/catalogue2571
Topic
Seismic
Wind
Application
Frames
Organization
University of Utah
Application
Frames
Topic
Seismic
Wind
Keywords
Buckling Restrained Brace Frames
Resilient Building Design
Mass Timber
Energy Dissipation
Monitoring
Research Status
In Progress
Notes
Project contact is Chris Pantelides at the University of Utah
Summary
A mass timber buckling-restrained braced frame is proposed to enhance the seismic resilience of mass timber buildings. Constructed using wood generated from the national forest system, the mass timber buckling-restrained brace will be integrated with a mass timber frame for structural energy dissipation under seismic or wind loads. The team will improve and optimize the design of structural components based on feedback from a real-time health monitoring system. Outcomes include guidelines for a lateral force resisting system of mass timber buildings in high seismic or wind regions.
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Building Information Modeling (BIM) and Design for Manufacturing and Assembly (DfMA) for Mass Timber Construction

https://research.thinkwood.com/en/permalink/catalogue1921
Year of Publication
2018
Topic
Design and Systems
Application
Wood Building Systems
Author
Staub-French, Sheryl
Poirier, Erik
Calderon, Francisco
Chikhi, Imen
Zadeh, Puyan
Chudasma, Divyarajsinh
Huang, Shitian
Publisher
BIM TOPiCS Research Lab
Year of Publication
2018
Format
Report
Application
Wood Building Systems
Topic
Design and Systems
Keywords
Model
Building Information Modeling
Design for Manufacturing and Assembly
Construction
BIM
DfMA
Research Status
Complete
Summary
The study laid out in this report aims to build on the lessons learned from around the globe and in BC to promote and facilitate the deployment of BIM and DfMA in the context of mass timber construction. The study’s objectives were to: 1. Explore BIM tools and software platforms that support collaboration and optimization of design solutions as well as enable seamless exchange of information in the context of DfMA of mass-timber solutions. 2. Investigate the potential impact of the use of BIM tools and software platforms on project and team outcomes in the context of mass-timber construction. 3. Investigate how the modeling process can be streamlined to minimize waste and optimize the DfMA process in the context of mass-timber construction. 4. Investigate the readiness of manufacturers and installer/assemblers to supply BIM data for products and systems. 5. Propose recommendations to position the supply chain to design, manufacture and assemble mass-timber structures. 6. Propose recommendations that identify future training requirements for BIM enabled DfMA in the context of mass-timber construction.
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119 records – page 1 of 12.