Skip header and navigation

Refine Results By

10 records – page 1 of 1.

Design, Fabrication and Operation Proposals for Glued-Laminated Timber, Based on Measuring and Modelling Results, Chapter 1: Literature Review and the Results of Examinations of the Spoil of the Glue Laminated Timber Beams

https://research.thinkwood.com/en/permalink/catalogue1133
Year of Publication
2014
Topic
Design and Systems
Serviceability
Material
Glulam (Glue-Laminated Timber)
Application
Roofs
Author
Vanya, Csilla
Year of Publication
2014
Country of Publication
Hungary
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Application
Roofs
Topic
Design and Systems
Serviceability
Keywords
Delamination
Damage
Language
Hungarian
Research Status
Complete
Series
Faipar
ISSN
2064-9231
Online Access
Free
Resource Link
Less detail

Design Process of a Free-Form Structure Using CLT Panels - Analysis of an Architectural Large Scale Structure

https://research.thinkwood.com/en/permalink/catalogue1640
Year of Publication
2016
Topic
Design and Systems
Material
CLT (Cross-Laminated Timber)
Author
Tolszczuk-Leclerc, Zoé
Bernier-Lavigne, Samuel
Salenikovich, Alexander
Potvin, André
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Topic
Design and Systems
Keywords
Fabrication
CNC
Free-Form
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 3179-3186
Summary
This research is about the design process, development and fabrication of a free-form structure in crosslaminated timber (CLT) panels. Since sustainability, ecology and structural design are now relevant in any building project, the purpose of this research is to demonstrate that CLT panels can be used as an ecoresponsive strategy based...
Online Access
Free
Resource Link
Less detail

An Algorithm for Numerical Modelling of Cross-Laminated Timber Structures

https://research.thinkwood.com/en/permalink/catalogue2362
Year of Publication
2015
Topic
Design and Systems
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
D'Aronco, Gabriele
Publisher
Università di Padova
Year of Publication
2015
Country of Publication
Italy
Format
Thesis
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Design and Systems
Keywords
Connections
Panels
Model
Language
English
Research Status
Complete
Summary
Cross-laminated timber, also known as X-Lam or CLT, is well established in Europe as a construction material. Recently, implementation of X-Lam products and systems has begun in countries such as Canada, United States, Australia and New Zealand. So far, no relevant design codes for X-Lam construction were published in Europe, therefore an extensive research on the field of cross-laminated timber is being performed by research groups in Europe and overseas. Experimental test results are required for development of design methods and for verification of design models accuracy. This thesis is part of a large research project on the development of a software for the modelling of CLT structures, including analysis, calculation, design and verification of connections and panels. It was born as collaboration between Padua University and Barcelona"s CIMNE (International Centre for Numerical Methods in Engineering). The research project started with the thesis “Una procedura numerica per il progetto di edifici in Xlam” by Massimiliano Zecchetto, which develops a software, using MATLAB interface, only for 2D linear elastic analysis. Follows the phase started in March 2015, consisting in extending the 2D software to a 3D one, with the severity caused by modelling in three dimensions. This phase is developed as a common project and described in this thesis and in “Pre-process for numerical analysis of Cross Laminated Timber Structures” by Alessandra Ferrandino. The final aim of the software is to enable the modelling of an X-Lam structure in the most efficient and reliable way, taking into account its peculiarities. Modelling of CLT buildings lies into properly model the connections between panels. Through the connections modelling, the final aim is to enable the check of preliminarily designed connections or to find them iteratively, starting from hypothetical or random connections. This common project develops the pre-process and analysis phases of the 3D software that allows the automatic modelling of connections between X-Lam panels. To achieve the goal, a new problem type for GiD interface and a new application for KRATOS framework have been performed. The problem type enables the user to model a CLT structure, starting from the creation of the geometry and the assignation of numeric entities (beam, shell, etc.) to geometric ones, having defined the material, and assigning loads and boundary conditions. The user does not need to create manually the connections, as conversely needs for all commercial FEM software currently available; he just set the connection properties to the different sides of the panels. The creation of the connections is made automatically, keeping into account different typologies of connections and assembling of Cross-Lam panels. The problem type is special for XLam structures, meaning that all features are intentionally studied for this kind of structures and the software architecture is planned for future developments of the postprocess phase. It can be concluded that sound bases for the pre-process and analysis phases of the software have been laid. However, future research is required to develop the postprocess and verification phases of the research project.
Online Access
Free
Resource Link
Less detail

Robotic Fabrication of Nail Laminated Timber

https://research.thinkwood.com/en/permalink/catalogue2493
Year of Publication
2019
Topic
Design and Systems
Material
NLT (Nail-Laminated Timber)
Application
Wood Building Systems

Multi-Scale Modelling of Rolling Shear Failure in Cross-Laminated Timber Structures by Homogenisation and Cohesive Zone Models

https://research.thinkwood.com/en/permalink/catalogue422
Year of Publication
2016
Topic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Author
Saavedra Flores, Erick
Saavedra, Karin
Hinojosa, Jorge
Chandra, Yatish
Das, Raj
Publisher
ScienceDirect
Year of Publication
2016
Country of Publication
Netherlands
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Topic
Mechanical Properties
Keywords
Rolling shear
Failure
Cohesive Zone Model
Multi-Scale Modelling
Homogenisation
Language
English
Research Status
Complete
Series
International Journal of Solids and Structures
Summary
In this paper we investigate the rolling shear failure in cross-laminated timber structures by homogenisation and cohesive zone models. In order to predict the structural response, four spatial scales are interlinked within a purely kinematic multi-scale modelling framework. The constitutive description has incorporated information coming from the wood cell-wall in the order of a few nanometres, wood fibres with dimensions of tens of micrometres and growth rings described by a few millimetres. The computational homogenisation scheme is solved sequentially from the lowest to the highest level in order to determine the effective mechanical properties for the fourth (structural) scale represented by a cross-laminated timber plate with dimensions of the order of one meter. In order to simulate the cracking in the material, a cohesive zone model is adopted at the homogenised macroscopic scale. The finite element problem is then solved using a mixed domain decomposition strategy due to its huge number of unknowns. This approach allows us to capture interlaminar and inter-fibre cracking and to solve the macroscopic equilibrium problem using parallel computations. Our numerical predictions are compared with experimental results and are validated successfully. In particular, we study the influence of wood density, edge-gluing and span-to-depth ratio on the rolling shear failure in cross-laminated timber.
Online Access
Free
Resource Link
Less detail

Design, Fabrication and Operation Proposals for Glued-Laminated Timber, Based on Measuring and Modelling Results, Chapter 2: The Calculation Model and its Results Used for Determination the Reasons of Damaging of Glued -Laminated Timbers

https://research.thinkwood.com/en/permalink/catalogue1134
Year of Publication
2014
Topic
Serviceability
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
Wood Building Systems
Author
Vanya, Csilla
Year of Publication
2014
Country of Publication
Hungary
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Application
Wood Building Systems
Topic
Serviceability
Mechanical Properties
Keywords
Delamination
Language
Hungarian
Research Status
Complete
Series
Faipar
ISSN
2064-9231
Online Access
Free
Resource Link
Less detail

Numerical Modelling of Timber Concrete Composite Structures in Fire - Guidance Document

https://research.thinkwood.com/en/permalink/catalogue2166
Year of Publication
2018
Topic
Fire
Design and Systems
Material
Timber-Concrete Composite
Glulam (Glue-Laminated Timber)
LVL (Laminated Veneer Lumber)
Application
Wood Building Systems
Beams

Modelling Alternative Load Paths in Platform-Framed CLT Buildings: A Finite Element Approach

https://research.thinkwood.com/en/permalink/catalogue2113
Year of Publication
2019
Topic
Design and Systems
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Huber, Johannes
Publisher
Luleå University of Technology
Year of Publication
2019
Country of Publication
Sweden
Format
Thesis
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Design and Systems
Keywords
Robustness
Finite Element Method
Disproportionate Collapse
Alternative Load Paths
Language
English
Research Status
Complete
ISBN
978-91-7790-340-6
ISSN
978-91-7790-341-3
Online Access
Free
Resource Link
Less detail

Performance Evaluation of Multi-Storey Cross-Laminated Timber Structures Under Different Earthquake Hazard Levels

https://research.thinkwood.com/en/permalink/catalogue1384
Year of Publication
2018
Topic
Design and Systems
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Shear Walls

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
Resource Link
Less detail

10 records – page 1 of 1.