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Development of a Novel Self-Centering Balloon-Type CLT Shear Wall System for Tall Buildings
https://open.library.ubc.ca/media/stream/pdf/24/1.... [Design/Architectural aspects] [Thesis/Dissertation] 2019 Sebastien Lepine-Lacroix The use of mass timber structures has considerably grown in recent years. This has increased the demand for sustainable, resilient, and high-performance mass timber structural systems. In this thesis, a novel self-centering balloon-type cross-laminated timber (CLT) shear wall system named the dual-pinned self-centering coupled CLT shear wall (DSCW) is proposed for tall buildings. The DSCW consists of two sets of CLT panels that are pinned at their base and coupled to one another using self-cente... |
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From Trees to Skyscrapers: Holistic Review of the Advances and Limitations of Multi-Storey Timber Buildings
https://www.mdpi.com/2075-5309/12/8/1263... [Design/Architectural aspects] [Journal Article] 2022 Marcelo González-Retamal, Eric Forcael, Gerardo Saelzer-Fuica, Mauricio Vargas-Mosqueda Products derived from trees have been used by mankind for thousands of years, where timber has a long tradition as an ecological construction material. There is currently an increasing trend in multi-storey timber buildings, because of the projected growth in the demand for housing in urban areas between now and 2050, along with the urgent need for a more sustainable and productive construction industry. The construction of these buildings is now possible thanks to the new advances in architectu... |
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Mass-Timber Panel (MTP) Industry and its Supply/Value Chain
https://www.researchgate.net/publication/354047896... [Markets] [Conference Paper] 2021 Lech Muszynski, Pipiet Larasatie, Eric N Hansen The mass-timber panel industry is an exception in the traditional commodity-oriented forest products industry at large, even if one compares it to quite sophisticated engineered wood products like glulam, I-joists or LVL. With possible exception for glulam decks, unidirectional nail-or dowel-laminated timber panels and CLT used for industrial mats, all structural cross-laminated timber panels discussed in this presentation are specialty products, custom produced and fabricated for specific proje... |
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Seismic performance assessment of a new mass timber-steel hybrid building system
https://www.researchgate.net/publication/362140128... [Seismic Performance] [Conference Paper] 2022 C. ZHANG, C. LOSS This work investigates how the actual in-plane stiffness of CLT diaphragms alters the seismic response of a multistorey building equipped with a concentrically X-braced steel frame. The details of finite-element model (FEM) of the steel frame and CLT floor in OpenSees [1] are shown in Figure 1. Numerical models of the steel brace and CLT floor are both validated based on experimental datasets [2]. The nonlinear responses of braces—which contributes to the lateral resistance and ductile deformabi... |
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Long-span CLT-glulam composite flooring system connected with bamboo-based shear connectors: feasibility of design for assembly
https://www.researchgate.net/publication/360768901... [Connectors] [Conference Paper] 2022 Y. Diao, C. Loss Composite flooring systems built with CLT-glulam ribs have a higher strength-to-weight ratio compared to the concrete-steel composites; thus, it can result in an economical solution for spans over 12 meters. In practice, the lack of studies on the structural performance of such CLT-glulam composites often leads to the oversize of the floor members. In addition, shear connectors design is crucial and drives to the structural efficiency of the floor assembly. In this paper, the long-span CLT-glula... |
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Evaluation of the seismic behavior of hybrid walls with timber for buildings in Chile
https://repositorioslatinoamericanos.uchile.cl/han... [Seismic Performance] [Thesis/Dissertation] 2022 Carrero Roa, Tulio Enrique Currently, it can be considered that there are four dominant systems of structural timber resistant to side shear, such as shear walls with a light frame timber structure (Light Frame Timber Buildings, LFTB) and walls of glued laminated timber shear panels (Glued Laminated Timber (GLULAM) cross laminated (Cross Laminated Timber, CLT) and microlaminated wood walls (Laminated venner lumber, LVL). Over time, an improvement in the seismic behavior of traditional wooden structures has been shown with... |
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Comparative analysis of life cycle GHG emissions of off-site Prefabricated modular volumetric construction and Panelized construction system for High rise wooden residential buildings in Norway
https://ntnuopen.ntnu.no/ntnu-xmlui/handle/11250/3... [Environmental Performance] [Thesis/Dissertation] 2022 Meriem Rezzag Lebza In this report, we will evaluate the development of tall wood and exploring the potential of prefabrication in the construction process of high wooden residential buildings and their Life cycle performance as low carbon construction systems. We will also compare the GHG emissions from two different systems: prefabricated volumetric Modules and Prefabricated building kits (Panelized system). With an initial assumption that Adopting prefabrication may contribute with significant environmental bene... |
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Design for a Reconfigurable Mass Timber Building System
https://digital.lib.washington.edu/researchworks/h... [Design/Architectural aspects] [Thesis/Dissertation] 2022 Chuou Zhang Mass timber products like glulam and cross-laminated timber(CLT) can store / sequester carbon in building stocks for as long as the building components remain in use. For this carbon reduction to have a significant impact, mass timber products must not release the carbon emission back to the atmosphere in their end-of-life. The end-of-life options for wood products are often reduced to landfills, energy production, reprocess, and recycling facilities. Most buildings with mass timber components a... |
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Design for a Reconfigurable Mass Timber Building System
https://digital.lib.washington.edu/researchworks/b... [Markets] [other] Chuou Zhang ... |
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Effects of Re-drying on properties of cross laminated timber (CLT) connections
https://www.sciencedirect.com/science/article/abs/... [Connectors] [Journal Article] 2023 K.E. Udele, A. Sinha, J. Morrell As mass timber buildings continue to gain widespread acceptance in North America, there is the need to address concerns, which might impact the performance of these novel buildings. Moisture intrusion poses significant levels of risks to mass timber elements and has been associated with durability concerns and possible reduction in performance of structural elements and connection systems. While it is recommended to employ design approaches that eliminate moisture accumulation in buildings, the ... |
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Mechanical Properties of Hybrid Softwood & Hardwood Cross-Laminated Timbers
https://vtechworks.lib.vt.edu/bitstream/handle/109... [Mechanical Performance] [Thesis/Dissertation] 2023 Esra Satir This study presents the results from testing of three-layer and five-layer CLTs manufactured using yellow-poplar (Liriodendron tulipifera) as hardwood and southern pine (Pinus spp.) as softwood in different layers, defined as hybrid CLT. The purpose of this project was to compare the bending and shear properties in the major axis direction of hybrid CLT panels obtained from five-point, four-point, and three-point bending tests with the current ANSI/APA PRG-320 values, and also to evaluate their ... |
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Current State of Using Prefabricated Construction in Australia
https://www.mdpi.com/2075-5309/12/9/1355... [Alternative/Hybrid Configurations] [Journal Article] 2022 Zhiming Zhang, Yongtao Tan, Long Shi, Lei Hou, Guomin Zhang The Australian prefabricated construction market has been developing rapidly in recent years. New prefabrication-related technologies, materials, systems and services are also emerging in the current Australian market. Although some studies have been undertaken to explore the benefits and challenges of implementing prefabrication in Australia over the past 15 years, they do not reflect the recent changes in the industry. Therefore, this study aims to fill this gap and identify the major changes ... |
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Sustainability Assessment of a Wooden Multi-Storey Building Compared with an Equivalent Reinforced Concrete Alternative Using ToSIA: Finnish Perspective
https://sustainability.hapres.com/htmls/JSR_1501_D... [Environmental Performance] [Journal Article] 2022 Ashraful Alam, Yutaka Goto, Shea Hagy, Diana Tuomasjukka, Mark Hughes The aim of this study was to conduct a sustainability impact assessment (SIA) on a wooden multi-storey building and compare this to an equivalent reinforced concrete building using ToSIA (Tool for Sustainability Impact Assessment). The SIA considered the material flows and processes along the respective supply chains in Finland and included environmental, economic, and social indicators. The greenhouse gas savings of various wood-based materials of the buildings were also compared with concrete ... |
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WOOD IN CONSTRUCTION 25 CASES OF NORDIC GOOD PRACTICE
http://norden.diva-portal.org/smash/get/diva2:1297... [General Information] [Report] 2019 Mads Randbøll Wolff This publication, by the Nordic Wood in Construction Secretariat, showcases 25 examples of Nordic projects from throughout the value chain working with wood in exciting and innovative ways. The aim is to demonstrate the benefits and drivers for building with wood, providing inspiration for the next generation of wood construction projects. ... |
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Passiivitason asuinkerrostalon elinkaaren hiilijalanjälki Tapaustutkimus kerrostalon ilmastovaikutuksista
https://media.sitra.fi/2011/12/19145441/Selvityksi... [Environmental Performance] [Report] 2011 Panu Pasanen, Juho Korteniemi, Anastasia Sipari, Bionova Consulting, Sitran Selvityksiä The study covers all phases of the life cycle: materials extraction, component production, construction, building use phase energy consumption, renovation, repairs and surface maintenance as well as demolition and material disposal. The material inventory covers all materials from foundations to floor surfacing, however interior furnishings, furniture and household equipment are out of scope. The scope covers the frame, windows, doors, floor surface materials and building services. The material ... |
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ENVIRONMENTAL PRODUCT DECLARATION
https://www.epd-norge.no/getfile.php/1313970-15928... [Vibration/Acoustic Performance] [other] Thomas Betong ... |
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Residual stresses in adhesively bonded wood determined by a bilayer flexion reporter system
https://www.researchgate.net/publication/362937461... [Mechanical Performance] [Journal Article] 2022 Jonas Matthias Maas, Philippe Grönquist, Jennifer Furrer, Vanessa Studer The application of adhesives in modern timber engineering often introduces moisture into the wood, leading to permanent residual stresses after hardening. This paper proposes a novel approach to assess these residual stresses by using wooden bilayers as a reporter system.... |
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Cross Laminated Timber (CLT) manufactured with European oak recovered from demolition: Structural properties and non-destructive evaluation
https://www.researchgate.net/publication/360322708... [Raw Materials] [Journal Article] 2022 Daniel F. Llana, Violeta González-Alegre, María Portela, Guillermo Íñiguez-González The demolition sector generates a large amount of timber waste that could be directly reused or recycled in other products for structural purposes. Timber should be graded before it is used for structural purposes, and visual strength grading standards designed for new timber do not properly grade recovered timber. Cross Laminated Timber (CLT) is now one of the most common wood products used in construction. CLT would therefore be a good option for recycling timber due to the high quantity of ma... |
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Effect of Edge Distances on Stiffness of Shear-Tension Mode in Glulam Connections with Inclined Screws
http://www.woodresearch.sk/cms/effect-of-edge-dist... [Connectors] [Journal Article] 2021 Y. LIU, Z. YAO, F. WANG, HUI HUANG, Z. QUE The effects of edge distances on stiffness in glulam connections with inclined selftapping screws were studied in this paper. Under four anchorage angles (A-45°, A-60°, A75°, A-90°) and three edge distances (EG-2D, EG-4D, EG-6D) conditions, the shear-tension tests were carried out on the timber structure connections with inclined self-tapping screws, and the stiffness and other properties of the connections were tested. Based on the results, the effects of edge distances on stiffness in joints w... |
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