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Experimental and numerical analysis of specimen configurations for Cross Laminated timber on rolling shear stiffness and strength response
https://www.sciencedirect.com/science/article/abs/... [Mechanical Performance] [Journal Article] 2023 João Vítor Felippe Silva, Marcos Cesar de Moraes Pereira, Maria Fernanda Felippe Silva, Julio Cesar Molina This work aimed to perform the numerical and experimental analysis of three test setups (bending, vertical shear, and inclined shear) of CLT used to determine the rolling shear stiffness and strength. CLT specimens were manufactured with four different Brazilian wood species and two-component polyurethane adhesive. The stress distributions in the CLT test setups were simulated by Finite Element Method using ANSYS software. Rolling shear stiffness and strength was directly proportional to wood d... |
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Review of the charring rates of different timber species
https://onlinelibrary.wiley.com/doi/10.1002/fam.31... [Fire Performance] [Journal Article] 2023 Julie Liu, Erica C. Fischer During a fire, the load-carrying cross section of timber members will reduce due to charring. This article summarizes experimental investigations into the charring rate of different timber species under standard fire conditions, identifies material properties that contribute to the variations of char rates across the different species, and evaluates the applicability of prescribed charring rates to solid timber, cross-laminated timber (CLT), and glulam exposed to standard fires.... |
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Parametric analysis of the effective flange width of mass timber composite floor panels
https://www.sciencedirect.com/science/article/abs/... [Mechanical Performance] [Journal Article] 2023 T. Hull, D. Lacroix Mass timber composites (MTCs), where the webs are typically spaced 750–2000 mm apart, have shown potential in overcoming span limitations of conventional flat slab mass timber floors. However, fundamental research investigating the non-linear stress distribution (i.e., shear lag) in the flanges is required. While this behaviour has been simplified in design for other materials using the concept of an effective flange width (EFW), no guidance exists in international design codes for mass timber c... |
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Fire performance of timer-concrete composite floor systems utilizing cross-laminated timber panels with self-tapping screws as shear connectors
https://knowledgecommons.lakeheadu.ca/handle/2453/... [Fire Performance] [Thesis/Dissertation] 2023 Sarah Barclay One of the main reasons that hinder more utilization of combustible material, such as wood, as the primary construction material in tall buildings is the required duration a structure must withstand applied loads under fire exposure without losing its structural integrity, which is refereed to the fire resistance rating required by applicable building codes. However, the increased availability of cross-laminated timber (CLT) sections in Canada and its successful use in mass timber construction h... |
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Strength of connection profiles used in cross-laminated timber walls under seismic load
https://www.goldenlightpublish.com/dosyalar/baski/... [Connectors] [other] Gulten Tandogan Kibar, Esra Lakot Alemdag, null, Cross-laminated wood (CLT) material, which has many advantages, has been widely used in architectural designs as a building element and building material in recent years. It has been proven that CLT can also show high performance against ground vibrations, but it is also mentioned in the literature that some problems such as rupture, snagging, and breaking occur in the elements used in the connections of the walls to the floor and the ground. This study was conducted to examine the performance o... |
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Ahsap-Yapi-Sektor-Raporu-2.pdf,
http://www.ahsap.org/assets/pdfDocs/etkinlik-2/Ahs... [Moisture/Durability] [other] ... |
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Strength of connection profiles used in cross-laminated timber walls under seismic load
https://search.trdizin.gov.tr/tr/yayin/detay/11614... [Seismic Performance] [Journal Article] 2023 Gulten TANDOĞAN KİBAR, Esra LAKOT ALEMDAĞ Cross-laminated wood (CLT) material, which has many advantages, has been widely used in architectural designs as a building element and building material in recent years. It has been proven that CLT can also show high performance against ground vibrations, but it is also mentioned in the literature that some problems such as rupture, snagging, and breaking occur in the elements used in the connections of the walls to the floor and the ground. This study was conducted to examine the performance o... |
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Construction Productivity Comparison Between Cast-in-Place Concrete and Mass-Timber Framing: A Case Study of the Nation’s Largest Mass-Timber Building
https://easychair.org/publications/open/LWX1... [Case Study/Projects] [Conference Paper] 2022 Anthony Mirando, Lameck Onsarigo One main barrier to the proliferation of sustainable mass-timber structures across the United States, is construction and development teams' unfamiliarity with scheduling and efficiently managing the construction of mass-timber structural system. A comprehensive understanding of the schedule associated with the construction of mass-timber versus typical concrete structures provides important data metrics for teams deciding on utilizing this material and method. This study compares simulated manp... |
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Building Towards the Future of Canada’s Sustainable Forests
https://repository.library.carleton.ca/concern/etd... [Raw Materials] [Thesis/Dissertation] 2022 A. Tang This thesis will address the long-term goals of forest management and development towards sustaining the forests in Chibougamau, Quebec. As the Canadian economy continues to supply and produce lumber, this thesis seeks to use architectural methods to promote a robust approach that aids in the facilitation of tree growth research and forestry production for commercial, large-scale economies, and to protect forest health. The design proposal is for a tree nursery and a forestry research center to ... |
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Evaluating the Suitability of Salvaged Lumber as Feedstock in Cross-Laminated Timber
https://d.lib.msu.edu/etd/50371... [Raw Materials] [Thesis/Dissertation] 2022 A.A. Azeez This research focuses on promoting deconstruction, obtaining the salvaged lumber from deconstructed abandoned buildings, and evaluating the possibility of reusing it to make way for a secondary means of lumber production. The study evaluates the engineering properties of salvaged lumber. Furthermore, the salvaged lumber is partially used to manufacture Cross Laminated Timber (CLT) per the current standards and its properties are compared against the properties of CLT panels exclusively made of f... |
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CASE STUDY OF 3-PLY COMMERCIAL SOUTHERN PINE CLT MECHANICAL PROPERTIES AND DESIGN VALUES
https://wfs.swst.org/index.php/wfs/article/view/31... [Mechanical Performance] [Book/Book Section] 2022 L.M. Spinelli Correa, R. Shmulsky, F.J.N. França This work elucidates on a case study of industrially manufactured cross-laminated timber (CLT). Two methods are used to calculate specimens section modulus, Sgross and Seffective. The first assumes that specimens behave as a continuous material, while the second considers the cross laminations (shear analogy method). Although the shear analogy method is indicated for construction purposes, applications as such as trench shoring, matting, and work platforms could benefit from a simpler calculati... |
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A Data-Driven Workflow for Modelling Self-Shaping Wood Bilayer
https://www.researchgate.net/publication/360223410... [Mechanical Performance] [Conference Paper] 2022 Zuardin Akbar, Dylan Wood, Laura Kiesewetter, Achim Menges This paper develops a workflow to train machine learning (ML) models with a small dataset from physical samples to predict the curvatures of self-shaping wood bilayers based on local variations in the grain. In contrast to state-of-the-art predictive models, specifically 1.) a 2D Timoshenko model and 2.) a 3D numerical model with a rheological model, our method accounts for natural and unavoidable material variations. In this paper, we only focus on local grain variations as the main driver for ... |
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Properties of Cross-Laminated Timber Panel with Low-Value Lumber and Performance of Cross-Laminated Timber Wall System Subjected to Seismic and Sequential Seismic-Wind Loadings
https://digitalcommons.mtu.edu/etdr/1380/... [Raw Materials] [Thesis/Dissertation] 2022 Yunxiang Ma The study of mechanical properties of the CLT panels made with low-value sugar maple and salvaged spruce can promote the utilization of the low-value lumber and promote forest management. The developed panel model provided an approach to estimate the CLT mechanical properties based on the nondestructive lamination test result, which can be a tool for future layup design. ... |
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Enhancing the performance of dowel type fasteners and a case study of timber truss failure
https://scholarsjunction.msstate.edu/td/5505/?utm_... [Case Study/Projects] [Thesis/Dissertation] 2022 L.A. Yeary As a building material, cross laminated timber (CLT) has exponentially grown in popularity recently. Although performing superior to numerous other popular building materials, a consistent issue presented in wood construction is the effect of moisture on performance. This study looks to investigate the effect of moisture content on the performance of a 2-way dowel type fastener system loaded in shear perpendicular to the major strength axis. It was found that the peak load capacity of the specim... |
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Designing the thermal properties of bio-composites for thermal mass and dynamic insulation
https://www.taylorfrancis.com/chapters/edit/10.120... [Alternative/Hybrid Configurations] [Book/Book Section] 2022 R. Fortin, A. Halepaska, S. Craig Bio-based building materials could help decarbonize the Canadian building industry. These materials must be fast-growing and long-lived, to maximize carbon sequestration in both biomass and building stocks. They must also be multifunctional to displace emissions from petroleum-based materials and systems. Bio-materials could be optimized for envelope heat-recovery or to dampen the effects of daily temperature swings. This paper examines how the thermal properties of bio-based hybrid materials ma... |
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Innovative Structural Systems for Timber Buildings: A Comprehensive Review of Contemporary Solutions
https://www.mdpi.com/2075-5309/13/7/1820... [Fire Performance] [Journal Article] 2023 M. Premrov, V. Žegarac Leskovar The remarkable development of timber construction technologies in recent decades has led to an increase in the number of timber buildings worldwide, including multi-storey buildings. The design of timber buildings, especially those of greater height, is relatively demanding and, even in the context of architectural expression, has certain constraints due to the specific structural and physical properties of this material. Thus, it is important for designers to have an overview of existing timber... |
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Can the Potential of Mass Timber Products, Particularly Cross Laminated Timber Solve the Ongoing Issues in the New Zealand Construction Industry?
https://researchspace.auckland.ac.nz/bitstream/han... [Markets] [Thesis/Dissertation] 2023 Zain Awbi The construction industry is a vital contributor to the New Zealand economy. Mass timber, in particular, cross-laminated timber (CLT), offers a promising solution for both the forestry industry and the construction industry. This thesis explores the potential for CLT to transform the New Zealand construction industry by examining the current issues faced in the industry as well as the economic, social and environmental impacts of its adoption.... |
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Building Their Dream Home Was a Nightmare. But in the End, 'It's Exactly What We Wanted.'; Kat and Michael Burn 'took a massive risk' constructing their Bend, Ore., home with cross-laminated timber, which led to a number of delays and unexpected costs.
https://login.ezp2.lib.umn.edu/login?qurl=https://... [Case Study/Projects] [Magazine/Newspaper Article] 2022 Nancy Keates Kat Burn, a biotech executive, and Michael Burn, who has a background in computer programming and startup firms, consider themselves tech savvy. So when the couple decided to build a new house in Bend, Ore., they opted to use a building method that is almost unheard of in American single-family home construction: prefabricated, solid-engineered wood panels called cross-laminated timber (CLT). They thought using CLT would expedite the building process.The advantages of using CLT panels, common in... |
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Towards a mass timber agenda: The local and regional viability of mass timber in Miami-Dade County
https://www.taylorfrancis.com/chapters/edit/10.120... [Markets] [Book/Book Section] 2022 C. Meyer, S. Meyer The paper Towards a Mass Timber Agenda examines the potential of the southern yellow pine (SYP) forests to produce viable solid wood building material and the capacity to implement these materials in Miami-Dade County (MDC). To better frame the project, it is positioned within a broader need of architectural speculation that questions accepted [and practiced] proclivities of the built environment and their surrounding ecologies. The project challenges the agency of architecture and provokes us t... |
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