Skip header and navigation

Refine Results By

618 records – page 1 of 62.

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

New Bridge Inspection Approach with Joint UAV and DIC System

https://research.thinkwood.com/en/permalink/catalogue2560
Year of Publication
2020
Topic
Serviceability
Application
Bridges and Spans
Author
Jeong, Euiseok
Seo, Junwon
Wacker, James
Year of Publication
2020
Country of Publication
United States
Format
Conference Paper
Application
Bridges and Spans
Topic
Serviceability
Keywords
UAV
DIC
Inspection
Deterioration
Detection
Language
English
Conference
Structures Congress
Research Status
Complete
Summary
This research aims to develop a new bridge inspection approach using unmanned aerial vehicle (UAV) coupled with digital image correlation (DIC) system. The DIC system incorporating UAV images can measure displacements or strains by analyzing patterns of reference and deformed images. As part of this research, a commercially available UAV, DJI Matrice 210, was integrated with the DIC system using a 3D printed mounting plate, and the joint UAV-DIC system was utilized to inspect a timber bridge girder in the Structure Lab. Then, the UAV-DIC system inspected an existing timber slab bridge in Pipestone, Minnesota, but the system was not able to efficiently identify critical damage due to its instability caused by windy conditions. Therefore, only the UAV equipped with a gimbal camera was operated to perform the bridge inspection. A significant number of images from the UAV were used and analyzed through a conventional image analysis algorithm within ImageJ software for damage quantification. The major conclusion from this research was that the UAV-DIC system was only able to detect and quantify damage (i.e., crack) on the considered girder under almost zero ambient wind conditions, and the UAV integrated with the image analysis algorithm was capable of damage identification and quantification for the inspected bridge.
Online Access
Free
Resource Link
Less detail

Use of Timber for the Sustainable City Growth and its Role in the Climate Change

https://research.thinkwood.com/en/permalink/catalogue2386
Year of Publication
2020
Topic
Environmental Impact
Application
Wood Building Systems
Author
Hamadyk, E
Amado, M
de Brito, J
Publisher
IOP Publishing Ltd
Year of Publication
2020
Format
Journal Article
Application
Wood Building Systems
Topic
Environmental Impact
Keywords
Sustainability
Embodied Carbon
Carbon Emissions
Construction
Language
English
Research Status
Complete
Series
IOP Conference Series: Earth and Environmental Science
Summary
According to the predictions of United Nations (2017) there are more than 7 billion people on Earth and this number will reach 9.7 billion by 2050. Today, most of the population lives in the urban areas and the rapid growth entails more construction in a housing sector. Since the industrial revolution the world has experienced countless technological attainments and on the other hand risky increase in natural resources use, energy consumption, greenhouse gases emission, ozone depletion, toxification and global temperature rising. The question how the cities can respond to urban growth is related to the sustainable goals of Agenda 2030. This research discusses potential of the usage of timber as construction material and it also brings the answer to this question. The wood is 100% renewable, recyclable and nontoxic material with capacity to absorb CO2 and perform low embodied energy. The increase of timber use in the construction contributes to sustainable development and to the reduction of waste, CO2 emission, as well as energy consumption. The aim of this paper is to discuss the advantages of using timber as a sustainable solution in urban context, in comparison with most commonly used concrete. The findings demonstrate the value of timber as sustainable construction material.
Online Access
Free
Resource Link
Less detail

Flexural Strengthening of Composite Bridge Glued Laminated Timber Beams-Concrete Plate Using CFRP Layers

https://research.thinkwood.com/en/permalink/catalogue2587
Year of Publication
2020
Topic
Design and Systems
Material
Glulam (Glue-Laminated Timber)
Application
Bridges and Spans
Author
Mujiman, M
Igustiany, F
Hakiki, R
Publisher
IOP Publishing Ltd
Year of Publication
2020
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Application
Bridges and Spans
Topic
Design and Systems
Keywords
CFRP
Carbon Fiber Reinforced Polymer
Flexural Strength
Stiffness
Ductility
Reinforcement
Language
English
Research Status
Complete
Series
IOP Conference Series: Materials Science and Engineering
Summary
The timber bridge design although economical, often has difficulty producing enough rigidity so that a solution is needed to solve it. The use of CFRP (Carbon Fiber Reinforced Polymer) as a reinforcement of structural elements if properly designed and implemented can produce an effective and efficient composite structure. The experimental study aims to analyse the strength, stiffness and ductility of flexural strengthening composite bridge glued laminated timber beams-concrete plates using CFRP layers. The dimensions of the composite glued laminated timber beams 100/180 mm and concrete plate 75/300 mm with a length of 2,480 mm. The number of specimens is 3 composite glued laminated timber beams-concrete plate consisting of 1 test beam without CFRP reinforcement, 1 test beam with one layer CFRP reinforcement, and 1 test beam with three layer CFRP reinforcement. Experimental testing of flexural loads is done with two load points where each load is placed at 1/3 span length. The test results show that the strength of composite laminated timber beams glued - concrete plates BN; BL-1; BL-2 in a row 81.32; 82.82; 82.69 kN/mm; stiffness in a row 7.51; 8.22; 6.32 kN/mm and successive ductility of 16.67; 28.83; 20.21.
Online Access
Free
Resource Link
Less detail

Embedment Strength of Cross-Laminated Timber for Smooth Dowel-type Fasteners

https://research.thinkwood.com/en/permalink/catalogue2118
Year of Publication
2019
Topic
Connections
Design and Systems
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Dong, Weiqun
Li, Qiao
Zhang, Hao
Wang, Zhiqiang
Zhou, Jianhui
Gong, Meng
Year of Publication
2019
Country of Publication
France
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Connections
Design and Systems
Keywords
Fasteners
Embedment Strength
Failure Modes
Embedment Tests
Dowel-Type Connections
Language
English
Conference
International Conference on Advances in Civil Engineering and Materials
Research Status
Complete
Series
MATEC Web of Conferences
Online Access
Free
Resource Link
Less detail

Laminated Veneer Lumber Hollow Cross-sections for Temporary Soil Nailing

https://research.thinkwood.com/en/permalink/catalogue2486
Year of Publication
2019
Topic
Design and Systems
Material
LVL (Laminated Veneer Lumber)
Application
Wood Building Systems

Experimental Investigation on the Shear Resistance of Existing Glulam Structures

https://research.thinkwood.com/en/permalink/catalogue2439
Year of Publication
2019
Topic
Design and Systems
Material
Glulam (Glue-Laminated Timber)
Application
Wood Building Systems
Author
Schulte-Wrede, Michael
Merk, Michael
Dietsch, Philipp
Year of Publication
2019
Country of Publication
Portugal
Format
Conference Paper
Material
Glulam (Glue-Laminated Timber)
Application
Wood Building Systems
Topic
Design and Systems
Keywords
Shear Resistance
Bending Tests
Aging Processes
Drill Cores
Language
English
Conference
International Conference on Structural Health Assessment of Timber Structures
Research Status
Complete
Online Access
Free
Resource Link
Less detail

Life Cycle Analysis of Cross Laminated Timber in Buildings: A Review

https://research.thinkwood.com/en/permalink/catalogue2141
Year of Publication
2019
Topic
Environmental Impact
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems

Experimental Investigation on Long-term Axial Creep Performance of Pine, Spotted Gum and Laminated Veneer Lumber

https://research.thinkwood.com/en/permalink/catalogue2485
Year of Publication
2019
Topic
Design and Systems
Material
LVL (Laminated Veneer Lumber)
Application
Wood Building Systems

Ductility of Dowelled New Zealand Douglas-Fir CLT Connections Under Monotonic and Cyclic Loading

https://research.thinkwood.com/en/permalink/catalogue2114
Year of Publication
2019
Topic
Connections
Material
CLT (Cross-Laminated Timber)
Application
Shear Walls
Author
Ottenhaus, Lisa-Mareike
Li, Minghao
Brown, J.
Ravn, C.
Scott, B.
Organization
University of Canterbury
Year of Publication
2019
Country of Publication
New Zealand
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
Shear Walls
Topic
Connections
Keywords
Multi-Story
Douglas-Fir
Dowel-Type Connections
Dowels
Language
English
Conference
Pacific Conference on Earthquake Engineering
Research Status
Complete
Online Access
Free
Resource Link
Less detail

618 records – page 1 of 62.