|
Structures Congress 2022
https://login.ezp3.lib.umn.edu/login?qurl=https://... [General Information] [Book/Book Section] 2022 American Society of Civil Engineers The Structures Congress has a robust technical program for Structural Engineers focusing on topics important to practitioners, academics and researchers at all levels of their career. The papers submitted for publication in the proceedings represent some of the topics covered in the technical program but not all. For details on all the sessions held at the congress look on the conference website. The papers in the proceeding are on the following topics •Blast & Impac... |
|
Disrupted cellulose aggregation leads to the reduced mechanical performance of wood-adhesive interphase during freeze-thaw cycles
https://assets.researchsquare.com/files/rs-2016626... [Moisture/Durability] [Journal Article] 2022 Yizhong Cao, Chuhang Xu, Shuwei Xu, Haili Chen, Yutao Yan, Yifan Chen, Qiang Wu, Siqun Wang The mechanical performance of wooden engineered composites facing the freeze-thaw cycles (FTCs) arises as an attention-worthy issue since the application of timber architectures in cold climates spreads. Here, we reported an investigation to reveal the losses of the mechanical performance of the wood-phenol formaldehyde (PF) adhesive interphase after the FTCs. Results revealed that PF adhesive was barely affected by the FTCs due to the low moisture content and rigid networks, whereas the mechani... |
|
Smoldering ignition and emission dynamics of wood under low irradiation
https://onlinelibrary.wiley.com/doi/full/10.1002/f... [Fire Performance] [Journal Article] 2022 Zhirong Liang, Shaorun Lin, Xinyan Huang Wood is one of the longest-standing and sustainable construction and building materials, and has gained a new renaissance for high-rise buildings to achieve global carbon neutrality. However, wood can sustain both flaming and smoldering fires, and numerous timber structure fires have raised fire safety to be a public concern. This work investigates the smoldering ignition of wood blocks under long-lasting low-intensity irradiation and the robustness of smoldering fire after the removal of irradi... |
|
Accelerating Decarbonization of Construction and Infrastructure
https://uat.theclimateboard.com/wp-content/uploads... [General Information] [Report] 2022 Alison Millman, Jacqueline Kessler, Hannah McGrath, Nancy Michael, Benjamin Umansky The Climate Board’s research suggests that both answers are yes—but only with conscious effort. This report outlines the obstacles to decarbonizing large-scale construction projects, highlights promising innovations for reducing carbon footprints, and makes five recommendations for overcoming the industry’s formidable structural barriers to decarbonization at scale. It is certainly not a complete roadmap to a net-zero world, but we hope it fills an important gap in business leaders’ understandin... |
|
Estimation of mechanical properties in Eucalyptus woods towards physical and anatomical parameters
https://www.sciencedirect.com/science/article/abs/... [Raw Materials] [Journal Article] 2022 Lucas José Marini, Raquel Schmitt Cavalheiro, Victor Almeida De Araujo, Juliana Cortez-Barbosa, Cristiane Ináciode Campos, Júlio César Molina, Diogo Aparecido Lopes Silva, Francisco Antonio Rocco Lahr, André Luis Christoforo There is a perceptible opportunity to utilize eucalypts in value-added wooden products with structural features for construction. But, tests to determine the wood properties require specific equipment and technical training. As alternative, the study utilized optical microscopy to measure some anatomical elements of 10 eucalypt varieties to estimate their mechanical properties in line with anatomical parameters and bulk densities using regression models. Eight anatomical properties about constit... |
|
Durability of building airtightness
https://www.aivc.org/sites/default/files/TN71_Dura... [Moisture/Durability] [Report] 2022 Valerie Leprince, Nolwenn Hurel, Bassam Moujalled Much progress has been made to improve the airtightness level of new buildings. Still, little is known about the durability of building airtightness, or the impact of degradation on airtightness. This report presents a comprehensive review of studies that deal with building airtightness durability. Regarding field measurement studies, the envelope airtightness seems to decrease during the first years after achievement and then stabilize. However, these variations are rarely explained. Key elemen... |
|
Acoustic emission monitoring of wood materials and timber structures
https://www.sciencedirect.com/science/article/pii/... [Vibration/Acoustic Performance] [Journal Article] 2022 Vahid Nasir, Samuel Ayanleye, Siavash Kazemirad, Farrokh Sassani, Stergios Adamopoulos The growing interest in timber construction and using more wood for civil engineering applications has given highlighted importance of developing non-destructive evaluation (NDE) methods for structural health monitoring and quality control of wooden construction. This study, critically reviews the acoustic emission (AE) method and its applications in the wood and timber industry. Various other NDE methods for wood monitoring such as infrared spectroscopy, stress wave, guided wave propagation, X-... |
|
Multistory Building Design and Performance Parameters Optimization Using Anova Method
https://ijsret.com/wp-content/uploads/2022/07/IJSR... [Design/Architectural aspects] [Journal Article] 2022 Brijesh Pandey, Rajeev Chandak Designing and analysis of structural buildings by manual calculation is a complicated and time-consuming work, it is not always the better option when compared with computer aided software. A computer aided program named Staad.Pro is available which allows to design and analyze a structural building in an easier way and consumes less time prior to the construction. Staad.Pro can be used in order to apply static and dynamic loads and their combinations in a quite simple method. The Staad.Pro soft... |
|
Performance of reversible timber connections in Australian light timber framed panelised construction
https://www.sciencedirect.com/science/article/abs/... [Connectors] [Journal Article] 2022 Zidi Yan, Lisa-Mareike Ottenhaus, Paola Leardini, Robert Jockwer This paper provides a novel insight into using reversible mass timber connectors in light-timber framed (LTF) construction to create dismountable, panelised LTF construction systems that enable adaptable building design and panel reuse in the context of a circular economy. The study presented in this paper focused on Australian LTF panelised construction:. A total of 10 IdeFix 304 connectors by SIHGA GmbH, and 20 M20 connectors by SHERPA Connection Systems GmbH were installed in Australian machi... |
|
Design and cyclic testing of bolted end plate connections between steel link beams and CLT for coupled shear walls
https://www.sciencedirect.com/science/article/abs/... [Connectors] [Journal Article] 2022 Ben Moerman, Minghao Li, Tobias Smith, Hyungsuk Lim Coupled cross-laminated timber (CLT) wall systems with ductile steel link beams offer an efficient, high-capacity lateral load resisting system for buildings in earthquake-prone regions. This study proposes a type of beam to CLT wall connection using a bolted end plate in a notched CLT panel edge to create a semi-rigid joint. A simplified analytical method is proposed to predict the connection strength and is compared against the results of full-scale experiments. The experimental strength value... |
|
Informing Regional Mass Timber Urban Environments with Biodiverse Forests
https://iopscience.iop.org/article/10.1088/1755-13... [Raw Materials] [Conference Paper] 2022 L. Wikstrom, C.Z. Yu Trees present a vast array of performance in density, growth speed, height, fibre strength, and rates of carbon absorption. This paper explores how biodiverse mass timber is a way to support forest health and improve the health conditions of the most vulnerable—those who have experienced the pollution of mineral-based materials for generations. This symbiotic relationship between forests and urban environments incentivizes better care for both spaces, the transfer of materials should be reciproc... |
|
The environmental and social impacts of modified wood production: effect of timber sourcing
https://www.tandfonline.com/doi/pdf/10.1080/204264... [Raw Materials] [Journal Article] 2022 George Roberts, Campbell Skinner, Graham A. Ormondroyd This study assesses the environmental and social impacts of a modified softwood produced using radiata pine sourced from New Zealand or Chile. The LCA found that differing forestry and transport burdens associated with each location broadly cancelled each other out, giving overall product footprints that were very similar. Boiler gas and phenol-formaldehyde resin were the biggest emitters of GHG emissions, and normalization highlighted toxicity impacts as significant, largely due to the resin in... |
|
Mass Timber Building: A New Green Revolutionised Building Industry
https://info.frim.gov.my/infocenter/booksonline/tt... [General Information] [Report] 2021 Forest Research Institute Malaysia In this paper, the benefits of timber-based engineered materials for construction application are highlighted. Selected engineered timber products are introduced, followed by introduction to Mass Timber Buildings (MTB). Examples of global and local MTB projects are listed with the aim in promoting the potential of MTB to the readers. The objective of this paper is to bring greater awareness to the public on the importance and benefits of green buildings using timber-based engineered materials.... |
|
Influence of pre-drilling hole and feed rate on welded surface strength of pine-itauba joints
https://www.sciencedirect.com/science/article/pii/... [Design/Architectural aspects] [Journal Article] 2022 Ana Carolina Costa Viana, Felipe Gustavo Ebersbach, Poliana Dias de Moraes, Walter Lindolfo Weingaertner Rotary friction welding technique is a promising alternative of joining dowel-laminated timber (DLT) and dowelled cross-laminated timber (DCLT), without any adhesive. Studies on the welding of Brazilian woods are few and recent, mainly when determining the optimal welding parameters. Therefore, an exploratory study was carried out to evaluate the influence of pre-drilling hole and dowel feed rate on the welded surface strength of pine (Pinus taeda) and itauba (Mezilaurus itauba) joints, determin... |
|
The Effect of the Environment on the Serviceability of the CLT Floor: Virtual Reality as a Research Tool
https://login.ezp1.lib.umn.edu/login?qurl=https://... [Vibration/Acoustic Performance] [Journal Article] 2022 Haoyu Huang, Junhui Zhang, Jim Uttley, Wen-Shao Chang, Brad Jianhe Wang The environment is one of the factors that may influence occupants’ perception of floor vibration and the assessment of floor serviceability. In this study, laboratory tests were conducted on a 3-ply CLT floor. Occupants’ assessment of the floor serviceability under human-induced vibration was investigated. Virtual reality (VR) technique was used as a research method, simulating two common environments in life. First, the correlation between the occupants’ annoyance rating and serviceabilit... |
|
GROWN to Last
https://www.jstor.org/stable/48682202... [General Information] [Journal Article] 2022 Thomas K. Grose As the planet's population increases, so does the number of buildings needed to contain it. About five billion square meters rise from the ground annually, calculates the Global Alliance for Buildings and Construction--or each week the equivalent of a city the size of Paris. The concrete industry, for instance, has vowed to cut emissions 25 percent by 2030 and reach net-zero by 2050. Sustainable building materials will play an important role in achieving such ambitious goals. ... |
|
Scientometric Analysis for Cross-Laminated Timber in the Context of Construction
https://mdpi-res.com/automation/automation-03-0002... [Markets] [Journal Article] 2022 Emanuel Martinez Villanueva, Jennifer Alejandra Cardenas Castañeda, Rafiq Ahmad Cross-laminated timber (CLT) has been one of the principal materials in mass timber construction, and now it is possible to find mid-rise and high-rise projects around the globe. This study makes a scientometric review comparison between CLT and the impact of the fourth industrial revolution (formally known as Industry 4.0) in the construction industry, focusing on worldwide academic publications between 2006 and 2022. The analysis considers keywords, co-author, co-citation, and clustering analy... |
|
Evaluation of mechanical properties of Pinustaeda wood from cross laminated timber boards
https://primo.lib.umn.edu/primo-explore/fulldispla... [Raw Materials] [Journal Article] 2021 Ramon Vilela, Nilson Tadeu Mascia Cross Laminated Timber (CLT) plates are used in the construction industry both due to their high architectural and structural performance and for sustainability reasons. Because it is an orthotropic composite product, knowledge of the mechanical characteristics of its raw material in the directions of use is relevant to the structural design of such plates. This paper analyzes the experimental results of samples extracted from industrialized CLT plates. The plates were produced with wood of the ... |
|
Evaluation of Cross-Laminated Timber Panels Produced with Yellow-Poplar (Liriodendron Tulipifera)
https://primo.lib.umn.edu/primo-explore/fulldispla... [Raw Materials] [Thesis/Dissertation] 2022 Rafael da Rosa Azambuja Cross-Laminated Timber (CLT) panels are engineered wood products breaking into the building sector. Currently, the range of raw materials used in CLT is still limited to softwoods, while some hardwood species such as yellow-poplar could potentially be used to produce this wood product. Therefore, the main goal of this research was to assess the feasibility of using Appalachian Hardwoods in the production of Cross-Laminated Timber panels. Specifically, the objectives of the research were to 1) De... |
© Regents of the University of Minnesota. All rights reserved.