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34 records – page 1 of 4.

Alternative Load Path Analyses for Mid-Rise Post and Beam Mass Timber Building

https://research.thinkwood.com/en/permalink/catalogue2448
Year of Publication
2020
Topic
Design and Systems
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Application
Wood Building Systems
Columns
Beams

An Innovative Hybrid Timber Structure in Japan: Performance of Column and Beams

https://research.thinkwood.com/en/permalink/catalogue1759
Year of Publication
2016
Topic
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Columns
Author
Shioya, Shinichi
Koga, Takeshi
Kumon, Yuto
Otsuki, Kazuaki
Uchimura, Kohei
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Columns
Topic
Mechanical Properties
Keywords
Japanese Cedar
Reinforcement
Steel Bars
Epoxy
Flexural Stiffness
Flexural Strength
Reverse Cyclic Loading
Force-Displacement Curves
Strain Distribution
Failure
Numerical Analysis
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 5058-5067
Summary
In this paper, bending behaviours in hybrid composite glulam timbers reinforced using deformed steel bars and epoxy resin adhesives (RGTSB) are presented. The technique RGTSB was developed in order to improve flexural stiffness and strength in glulam timbers...
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Application of Ductile Yield Link in Glulam Moment Connections

https://research.thinkwood.com/en/permalink/catalogue2313
Year of Publication
2018
Topic
Connections
Design and Systems
Material
Glulam (Glue-Laminated Timber)
Application
Columns
Beams
Author
Almousawi, Sayed Husain
Publisher
Virginia Tech
Year of Publication
2018
Country of Publication
United States
Format
Thesis
Material
Glulam (Glue-Laminated Timber)
Application
Columns
Beams
Topic
Connections
Design and Systems
Keywords
Beam Column Connection
Moment Frame Connection
Self-Tapping Screws
Reinforcement
Language
English
Research Status
Complete
Online Access
Free
Resource Link
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Behaviour of Glued-Laminated (Glulam) Beams and Columns Subjected to Simulated Blast Loads

https://research.thinkwood.com/en/permalink/catalogue1549
Year of Publication
2016
Topic
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Columns
Author
Lacroix, Daniel
Doudak, Ghasan
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Columns
Topic
Mechanical Properties
Keywords
Blast Loads
Static Loads
Dynamic Loads
Dynamic Tests
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 1199-1206
Summary
This paper presents preliminary results from an experimental program investigating the dynamic behaviour of glulam beams and columns subjected to simulated blast loads. A total of eight glulam beams and columns were tested destructively under static and dynamic loads. Based on the dynamic tests conducted on the beams, an increase in strength under dynamic loading, relative to that measured under the static loading, was observed. A material predictive model that accounts for high strain-rate effects is developed. The experimental displacement-time histories were reasonably well predicted through a single-degree-of-freedom approach which used the proposed resistance model as input.
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Calculating the Fire Resistance of Wood Members and Assemblies: Technical Report No. 10

https://research.thinkwood.com/en/permalink/catalogue2492
Year of Publication
2020
Topic
Fire
Design and Systems
Material
CLT (Cross-Laminated Timber)
Application
Columns
Beams
Floors
Walls
Wood Building Systems
Decking

Compressive Behavior of Glulam Columns with Initial Cracks Under Eccentric Loads

https://research.thinkwood.com/en/permalink/catalogue1463
Year of Publication
2018
Topic
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
Columns
Author
Zhang, Jing
He, Minjuan
Li, Zheng
Publisher
Springer Berlin Heidelberg
Year of Publication
2018
Country of Publication
Germany
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Application
Columns
Topic
Mechanical Properties
Keywords
Cracks
Compression Loads
Failure Modes
Load Bearing Capacity
Numerical Model
Language
English
Research Status
Complete
Series
International Journal of Advanced Structural Engineering
ISSN
2008-6695
Summary
This paper investigates the mechanical performance of longitudinally cracked glulam columns under eccentric compression loads. Experimental investigation was conducted to explore the influence of initial cracks on the failure modes and load bearing capacity of glulam columns. Two different crack patterns named DC and IC, and two column lengths (i.e. 600 and 1100 mm) were considered in the experiments. It was indicated that these two crack patterns reduced the capacity of slender glulam columns and the difference of failure modes was observed between glulam columns with and without initial cracks. Further, a numerical model was developed and validated by the test results. With the application of cohesive zone material model, the propagation of initial cracks could be considered in the numerical modeling. A parametric study was carried out by the verified model and the influence of crack lengths and crack locations was further investigated. From the numerical analysis, it was found that through cracks reduced the capacity of glulam columns significantly. Also, crack location impacts the capacity of glulam columns and the extent of impact relates to the slenderness ratio of the columns, while cracks with different lengths have similar influence on the capacity of columns.
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Damage Evaluation of Glulam Twinned Columns to Beam Circular Bolted Connection

https://research.thinkwood.com/en/permalink/catalogue166
Year of Publication
2015
Topic
Connections
Moisture
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Columns
Author
Dopeux, Jérôme
Giorgetti, Cosimo
Pop, Octavian
Reynaud, Philippe
Dubois, Frédéric
Year of Publication
2015
Country of Publication
Romania
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Columns
Topic
Connections
Moisture
Keywords
Moisture Content
Cracks
Bolts
Language
English
Research Status
Complete
Series
Pro Ligno
ISSN
2069-7430
Summary
This paper deals with assessment of glulam twinned columns to beam circular bolted connection. This kind of connection is used for embedded assembly. Because of the moisture content variations, cracks often occur in the direction parallel to the grain. The aim of the study is to understand the mechanism responsible of the cracks happening. In the same time, another aim of this study is to evaluate the residual resistance of a damaged assembly. The assembly has been designed according to Eurocode 5. Two different initial conditions have been tested. For the first assembly, the columns and the beam have been dried before machining and tested dry. For the second assembly, the beam was wet and the columns were dry before machining, then the assembly was tested dry. The difference of moisture content implies a huge tensile strain in the direction perpendicular to the grain of the columns before loading. In order to qualify the assembly behavior, strain gauges techniques have been used. This analysis allows a better understanding of the phenomenon of cracks initiation and propagation due to the coupled effect of shrinkage/swelling and loading.
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Design of Timber Members Subjected to Axial Compression or Combined Axial Compression and Bending Based on 2nd Order Theory

https://research.thinkwood.com/en/permalink/catalogue115
Year of Publication
2015
Topic
Design and Systems
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
Columns
Author
Frangi, Andrea
Steiger, René
Theiler, Matthias
Organization
International Network on Timber Engineering Research (INTER)
Year of Publication
2015
Country of Publication
Germany
Format
Conference Paper
Material
Glulam (Glue-Laminated Timber)
Application
Columns
Topic
Design and Systems
Mechanical Properties
Keywords
Bending
Buckling
Codes
Compression
Deformation
Monte Carlo
Simulation
Structural
Testing
Language
English
Conference
INTER 2015
Research Status
Complete
Notes
August 24-27, 2015, Sibenik, Croatia
Summary
The paper examines the behaviour of structural timber members subjected to axial compression or combined axial compression and bending. Based on experimental and numerical investigations, the accuracy of the existing approach in Eurocode 5 for the design of timber members subjected to axial compression or combined axial compression and bending is assessed and modifications are suggested. By means of extensive experimental investigations, a data base was created for the validation of calculation models and for the assessment of design concepts. In order to assess the behaviour of timber members subjected to axial compression or combined axial compression and bending, strain-based calculation models were developed. The investigations indicate that the existing approach of Eurocode 5 based on 2nd order analysis can lead to an overestimation of the load-bearing capacity. Hence, a modified design approach was developed which agrees with the results of the Monte Carlo simulations very well and thus ensures a safe and economical design of timber members subjected to compression or combined compression and bending.
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Development of a Clear Intumescent Coating for Mass Timber Construction: Fire Protection and Interior Application

https://research.thinkwood.com/en/permalink/catalogue2815
Topic
Fire
Application
Ceilings
Walls
Columns
Organization
National Research Council of Canada
Country of Publication
Canada
Application
Ceilings
Walls
Columns
Topic
Fire
Keywords
Intumescent Coating
Mass Timber
Encapsulated Mass Timber Construction
Encapsulation
Fire Resistance Rating
Research Status
In Progress
Notes
Project contact is Rokib Hassan at the National Research Council of Canada
Summary
Phase two of a four-phased research project, with the overarching goal of developing transparent intumescent coating (TIC) for mass timber construction, which would be technology certified, IP protected and licensed out. The use of TIC would ensure that fire resistance rating requirements are met while reducing the need for encapsulation, resulting in increased overall aesthetics provided by timber. Phase two focuses on demonstrating a proof-of-concept on a small scale and optimizing the TIC formula and coating thickness based on the testing results. Small scale tests will be conducted to measure fire resistance, weatherability and fire toxicity.
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Development of Glulam Column-RC Base Connection System for Multi-Stories Large-Scale Timber Building

https://research.thinkwood.com/en/permalink/catalogue1774
Year of Publication
2016
Topic
Connections
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
Columns
Wood Building Systems
Author
Sato, Nozomi
Uetsuki, Kazuki
Tanaka, Kei
Hagino, Tsuyoshi
Noda, Kenji
Satomura, Norihiko
Koshihara, Mikio
Inoue, Masafumi
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
Glulam (Glue-Laminated Timber)
Application
Columns
Wood Building Systems
Topic
Connections
Mechanical Properties
Keywords
Loading Tests
Yield Moment
Multi-Storey
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 5393-5400
Summary
In Japan, the moment resistance connections of large-scale timber building are inefficiency in terms of time and economic, because connections and column base hardware are custom-made to obtain the required performance. To improve this problem, it is necessary to unify standardization of their connection. At first, in this study, we focused on column-base connection, the horizontal...
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34 records – page 1 of 4.