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5 records – page 1 of 1.

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
Country of Publication
Germany
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Topic
Connections
Keywords
Prefabrication
CNC
Dovetail
Language
German
Research Status
Complete
Series
Bauingenieur
ISSN
0005-6650
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.
Online Access
Free
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Development of a Spring Model for the Structural Analysis of a Double-Layered Timber Plate Structure with Through-Tenon Joints

https://research.thinkwood.com/en/permalink/catalogue2034
Year of Publication
2018
Topic
Design and Systems
Mechanical Properties
Connections
Material
LVL (Laminated Veneer Lumber)
Author
Chi Nguyen, Anh
Weinand, Yves
Year of Publication
2018
Country of Publication
South Korea
Format
Conference Paper
Material
LVL (Laminated Veneer Lumber)
Topic
Design and Systems
Mechanical Properties
Connections
Keywords
Beech
Joints
Finite Element Model
Double-Layered Timber Plate
Stiffness
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Online Access
Free
Resource Link
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A framework to Automate the Design of Digitally-Fabricated Timber Plate Structures

https://research.thinkwood.com/en/permalink/catalogue2773
Year of Publication
2021
Topic
Design and Systems
Application
Shell Structures
Author
Rad, Aryan Rezaei
Burton, Henry
Rogeau, Nicolas
Vestartas, Petras
Weinand, Yves
Publisher
Elsevier
Year of Publication
2021
Format
Journal Article
Application
Shell Structures
Topic
Design and Systems
Keywords
Connections
Timber Plates
CAD
CAE
Computer Programming
Macro Modeling Technique
Language
English
Research Status
Complete
Series
Computers & Structures
Summary
The current study uses knowledge from digital architecture, computer science, engineering informatics, and structural engineering to formulate an algorithmic framework for integrated Computer-Aided Design (CAD) and Computer-Aided Engineering (CAE) of Integrally-Attached Timber Plate (IATP) structures. The algorithm is designed to take the CAD 3D geometry of an IATP structure as input and automates the construction and analysis of the corresponding CAE model using a macroscopic element, which is an alternative to continuum Finite Element (FE) models. Each component of the macro model is assigned a unique tag that is linked to the relevant geometric and structural parameters. The CAE model integrity is maintained through the use of the common data model (CDM) concept and object-oriented programming. The relevant algorithms are implemented in Rhinoceros 3D using RhinoCommon, a .NET software development kit. Once the CAE macro model is generated, it is introduced to the OpenSees computational platform for structural analysis. The algorithmic framework is demonstrated using two case structures: a prefabricated timber beam with standard geometry and a free-form timber plate arch. The results are verified with measurements from physical experiments and FE models, where the time needed to convert thousands of CAD assemblies to the corresponding CAE models for response simulation is considerably reduced.
Online Access
Free
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Rotational Stiffness at Ridges of Timber Folded-Plate Structures

https://research.thinkwood.com/en/permalink/catalogue912
Year of Publication
2015
Topic
Connections
Mechanical Properties
Material
LVL (Laminated Veneer Lumber)
Author
Roche, Stéphane
Mattoni, Geoffroy
Weinand, Yves
Publisher
SAGE Publications
Year of Publication
2015
Country of Publication
United States
Format
Journal Article
Material
LVL (Laminated Veneer Lumber)
Topic
Connections
Mechanical Properties
Keywords
Stiffness
Folded-plate
Language
English
Research Status
Complete
Series
International Journal of Space Structures
Summary
Folded-plate structures provide an efficient design using thin laminated veneer lumber panels. Inspired by Japanese furniture joinery, the multiple tab-and-slot joint was developed for the multi-assembly of timber panels with non-parallel edges without adhesive or metal joints. Because the global analysis of our origami structures reveals that the rotational stiffness at ridges affects the global behaviour, we propose an experimental and numerical study of this linear interlocking connection. Its geometry is governed by three angles that orient the contact faces. Nine combinations of these angles were tested and the rotational slip was measured with two different bending set-ups: closing or opening the fold formed by two panels. The non-linear behaviour was conjointly reproduced numerically using the finite element method and continuum damage mechanics.
Online Access
Free
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Shear Resistance and Failure Modes of Edgewise Multiple Tab-and-Slot Joint (MTSJ) Connection with Dovetail Design for Thin LVL Spruce Plywood Kerto-Q Panels

https://research.thinkwood.com/en/permalink/catalogue1563
Year of Publication
2016
Topic
Connections
Mechanical Properties
Material
LVL (Laminated Veneer Lumber)
Author
Dedijer, Mira
Roche, Stéphane
Weinand, Yves
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
LVL (Laminated Veneer Lumber)
Topic
Connections
Mechanical Properties
Keywords
Geometry
Multiple Tab-and-Slot Joints
Shear Test
Finger Joint
Failure Modes
Shear Strength
Shear Stiffness
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 1548-1555
Summary
The objective of this study is to experimentally analyse effects of geometry variations of Multiple Tab and Slot Joint (MTSJ) connection with dovetail design on shear mechanical behaviour. Direct shear test was performed on angular ( = 90° ) MTSJ connection made of Kerto-Q 21mm-thick spruce plywood laminated veneer lumber (LVL) panels. Connection was examined in its configuration of three tabs/slots per edge. Nine different geometries of MTSJ connection were tested. In order to provide better understanding of mechanical behaviour of the connection, results were compared with finger joint (F) connection. Two characteristic failure modes were observed. Influence of three theta angles which define geometry of MTSJ connection was analysed concerning shear strength and stiffness. Connection showed very ductile shear behaviour with relatively high stiffness. It has been shown that by increasing q 3 angle above 30°, shear strength decreases. On the other hand, the highest influence on shear stiffness is due to q 2 and q 3 rotations.
Online Access
Free
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