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10 records – page 1 of 1.

CLT Panels Subjected to Combined Out-of-Plane Bending and Compressive Axial Loads

https://research.thinkwood.com/en/permalink/catalogue1729
Year of Publication
2016
Topic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Author
Wang, Jasmine
Mohammad, Mohammad
Di Lenardo, Bruno
Sultan, Mohamed
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Topic
Mechanical Properties
Keywords
Out Of Plane
Bending
Compressive Axial Loads
Canada
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 4738-4745
Summary
With the introduction of Cross Laminated Timber (CLT) into North America and gaining popularity it is of interest to the design and code development community to have codified provisions to facilitate the design of CLT structures. This paper addresses the design aspect of CLT panels subjected to combined bending and compressive axial...
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Performance of Two-Storey CLT House Subjected to Lateral Loads

https://research.thinkwood.com/en/permalink/catalogue376
Year of Publication
2014
Topic
Connections
Design and Systems
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Popovski, Marjan
Gavric, Igor
Schneider, Johannes
Organization
FPInnovations
Year of Publication
2014
Country of Publication
Canada
Format
Report
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Connections
Design and Systems
Keywords
Lateral Loads
North America
Building Codes
Full Scale
Quasi-Static
Monotonic Loading
Cyclic Loading
Failure Mechanism
Language
English
Research Status
Complete
Summary
The work presented in this report is a continuation of the FPInnovations' research project on determining the performance of the CLT as a structural system under lateral loads. A two storey full-scale model of a CLT house was tested under quasi-static monotonic and cyclic lateral loading in two directions, one direction at a time. In total five tests were performed; one push-over and two cyclic tests were conducted in the longer symmetrical direction (E-W), and two cyclic tests were performed in the shorter asymmetrical direction (N-S). In addition, before and after each test, natural frequencies of the house in both directions were measured. The main objective of the tests was to investigate 3-D system behaviour of the CLT structure subjected to lateral loads. The CLT structure subjected to lateral loads performed according to the design objectives.
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Experimental Study on Loading Capacity of Glued-Laminated Timber Arches Subjected to Vertical Concentrated Loads

https://research.thinkwood.com/en/permalink/catalogue2581
Year of Publication
2020
Topic
Design and Systems
Material
Glulam (Glue-Laminated Timber)
Application
Arches
Author
Zhou, Jiale
Chuanxi, Li
Ke, Lu
He, Jun
Wang, Zhifeng
Publisher
Hindawi
Year of Publication
2020
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Application
Arches
Topic
Design and Systems
Keywords
In-Plane Loading
Capacity
Douglas-Fir
Model
Failure Modes
Language
English
Research Status
Complete
Series
Advances in Civil Engineering
Summary
Glued-laminated timber arches are widely used in gymnasiums, bridges, and roof trusses. However, studies on their mechanical behaviours and design methods are still insufficient. This paper investigates the in-plane loading capacity of circular glued-laminated timber arches made of Douglas fir. Experiments were conducted on four timber-arch models with different rise-to-span ratios under concentrated loads at mid-span and quarter-point locations. The structural responses, failure modes, and loading capacity of the timber arch specimens were obtained. The results show that the timber arches presented symmetric and antisymmetric deformation under mid-point and quarter-point loading conditions, respectively. The downward shifting of the neutral axis of the cross section was observed under mid-point loading condition, which contributes to higher loading capacity compared to that under quarter-point loading condition. The loading condition significantly affects the ultimate loads and the strain distribution in the cross section. Based on the design formula in current standards for timber structures, an equivalent beam-column method was introduced to estimate the loading capacity of the laminated timber arches under vertical concentrated loads. The moment amplification factor in the formula was compared and discussed, and the value provided in the National Design Specification for Wood Construction was recommended with acceptable accuracy.
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Elastic Response of Cross-Laminated Engineered Bamboo Panels Subjected to In-Plane Loading

https://research.thinkwood.com/en/permalink/catalogue2305
Year of Publication
2019
Topic
Design and Systems
Material
Other Materials
Application
Walls
Wood Building Systems
Author
Archila-Santos, Hector
Rhead, Andrew
Publisher
ICE Publishing
Year of Publication
2019
Country of Publication
United Kingdom
Format
Journal Article
Material
Other Materials
Application
Walls
Wood Building Systems
Topic
Design and Systems
Keywords
G-XLam
Panels
Strength
Stiffness
Language
English
Research Status
Complete
Series
Proceedings of the Institution of Civil Engineers - Construction Materials
ISSN
1747-650X
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Study on Compressive Strain of CLT Wall Bottom Under the Extreme Verical Load

https://research.thinkwood.com/en/permalink/catalogue1004
Year of Publication
2014
Topic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
Walls
Author
Oonishi, Satoshi
Nasu, Hideyuki
Karube, Yasuteru
Inayama, Masahiro
Year of Publication
2014
Country of Publication
Canada
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
Walls
Topic
Mechanical Properties
Keywords
Vertical Load
High-Rise
Reinforcement
Screws
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 10-14, 2014, Quebec City, Canada
Summary
High-rise building made of CLT increases significantly its own weight. Therefore, the collapse of the wall bottom is concerned. Main purpose of this study is to verify the effect of the reinforcement with screws for avoiding the collapse of the CLT wall bottom by extreme vertical load. Test pieces of CLT wall bottom were reinforced by screws. As a result, we got better structural result with screw reinforcement than without screw. From these experimental results, the reinforcement of CLT wall bottom using screw at perpendicular angle to the fiber direction is effective in workability because it does not need seat-dig hole.
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Group Effect for Self-Tapping-Screws in CLT Subjected to Shear and Axial Loads

https://research.thinkwood.com/en/permalink/catalogue1975
Year of Publication
2018
Topic
Design and Systems
Connections
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
Walls
Wood Building Systems

Failure Analysis of CLT Shear Walls with Opening Subjected to Horizontal and Vertical Loads

https://research.thinkwood.com/en/permalink/catalogue1655
Year of Publication
2016
Topic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
Shear Walls
Author
Yasumura, Motoi
Kobayashi, Kenji
Okabe, Minoru
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
Shear Walls
Topic
Mechanical Properties
Keywords
Opening
FEM
Horizontal Loading
Failure
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 3555-3562
Summary
CLT wall panels having an opening were subjected to horizontal loading and the failure process of CLT around the opening was compared with the simulation by Finite Element Method. Three types of CLT wall panels of 3500mm length and 2700mm height had an opening of 1500mm length and 900mm to 2000mm height at the center of the wall panel. During the racking test of wall panel cracks appeared at the corner of the opening. The wall panel was modelled with three models. One included a single orthotropic plane element calculated from the mechanical properties parallel and perpendicular direction of lamina layout (Model I). Another included two orthotropic plane elements crossed each other and connected at each nodal point based on the mechanical property of lamina composing the panel (Model II). The third model included laminae of 30-by 120mm cross section arranged vertical and horizontal directions (Model III). The simulation by each model predicted comparatively well the initial shear stiffness of CLT wall panels and the initiation of cracks at the corner of opening.
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Numerical Study of Alternative Seismic-Resisting Systems for CLT Buildings

https://research.thinkwood.com/en/permalink/catalogue2176
Year of Publication
2018
Topic
Connections
Design and Systems
Material
CLT (Cross-Laminated Timber)
Application
Walls
Shear Walls

Elastic Response of Cross Laminated Engineered Bamboo Panels Subjected to In-Plane Loading

https://research.thinkwood.com/en/permalink/catalogue1805
Year of Publication
2017
Topic
Mechanical Properties
Material
Other Materials
Author
Archila-Santos, Hector
Walker, Pete
Ansell, Martin
Rhead, Andrew
Lizarazo-Marriaga, Juan
Publisher
ICE Publishing
Year of Publication
2017
Country of Publication
United Kingdom
Format
Journal Article
Material
Other Materials
Topic
Mechanical Properties
Keywords
Compression
Deformation
Elastic Moduli
Bamboo
Panels
G-XLam
Language
English
Research Status
Complete
Series
Proceedings of the Institution of Civil Engineers - Construction Materials
ISSN
1747-650X
Online Access
Free
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Numerical Study of Pin-Supported Cross-Laminated Timber (CLT) Shear Wall System Equipped with Low-Yield Steel Dampers

https://research.thinkwood.com/en/permalink/catalogue1267
Year of Publication
2016
Topic
Seismic
Design and Systems
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Shear Walls
Author
Ma, Siyao
Organization
University of British Columbia
Year of Publication
2016
Country of Publication
Canada
Format
Thesis
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Shear Walls
Topic
Seismic
Design and Systems
Keywords
Low-Rise
Mid-Rise
Rocking Walls
Steel Dampers
Language
English
Research Status
Complete
Summary
This thesis presents a numerical study of a novel rocking cross-laminated timber (CLT) shear wall system for low- to mid-rise constructions. The system takes advantage of the high in-plane stiffness of CLT coupled with low-yield steel dampers to control the rocking motion of the CLT shear walls during earthquakes. The low-yield steel dampers connected between two rigid CLT wall panels provide the mechanism needed to dissipate the earthquake energy. This concentrates the damage in the dampers, allowing the system to be repaired efficiently after major earthquakes. Numerical models of the CLT shear wall system have been developed using both OpenSees Navigator and ABAQUS software. Models of low-yield steel damper systems were calibrated using available experimental results. With the rigid floor/roof assumption, a simplified OpenSees model of the CLT shear wall system was demonstrated to be effective and reasonably accurate in predicting the response of the system under large excitations. Therefore, it is efficient and reliable to apply the OpenSees model to study the seismic response of CLT shear wall buildings. A case study of a six-storey CLT shear wall building located in Vancouver, Canada was studied; and, detailed parameteric studies were conducted to investigate the influences of the damper type (damper shear strength), number of dampers, damper location, different earthquake records versus target earthquake design response spectrum, and earthquake peak ground acceleration (PGA) on the building response. It was determined that an optimized damper design with comprehensive consideration of these five factors can provide a building with a small roof drift ratio, as well as minor damages on the dampers. Concepts and examples for connection design are also provided.
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10 records – page 1 of 1.