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Design of Tall Timber Buildings in Scandinavia and Canada
https://odr.chalmers.se/server/api/core/bitstreams... [Tall Buildings] [Thesis/Dissertation] 2022 O. Olsson Scandinavia and Canada are two places with many forests and benefit from the sustainable change where timber is becoming more and more relevant, even when designing tall buildings where steel and concrete have been and still are the dominant material to use. This thesis compares the building and design practices for tall timber buildings in Scandinavia and Canada. This will be done in three parts. Firstly will be a literature study to understand the main design criteria for designing tall timber... |
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Seismic Analysis of a Multi-story Timber-Concrete Building with Focus on Reusability
https://nmbu.brage.unit.no/nmbu-xmlui/bitstream/ha... [Case Study/Projects] [Thesis/Dissertation] 2022 S. Lie This thesis investigates the dynamic behavior of an 8-story reference building designed with moment-resisting timber frames, CLT wall panels, and hollow core slabs through numerical modal analysis. In addition to pinned and rigid beam-to-column connections are four different connections from previous researches implemented in the model using rotational springs.... |
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Nature as inspiration: Bio-based materials for sustainable construction
https://login.ezp2.lib.umn.edu/login?qurl=https://... [Case Study/Projects] [Magazine/Newspaper Article] 2022 B. Hookham For centuries, human beings used natural materials to construct our built environments. Timber, bamboo, earth and straw were all renewable natural materials readily available for use. However, with the advent of the industrial era and the modernization of societies and technology, renewable resources were replaced by other polluting materials such as cement and steel.... |
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Experimental study on the embedment strength of smooth dowels inserted in cross-laminated timber narrow side
https://login.ezp2.lib.umn.edu/login?qurl=https://... [Design/Architectural aspects] [Journal Article] 2022 Weiguo Long, Jiajia Ou, Xiaofeng Sun, Xinyue Huang, Minjuan He, Zheng Li The embedment properties of the dowel-type fasteners is a fundamental parameter that can determine the shear resisting performance of the connections utilized in cross-laminated timber (CLT) structures. To investigate the embedment strength of the smooth dowels inserted in CLT narrow side, totally 504 CLT embedment specimens were tested to evaluate the effects of the influencing factors on the embedment strength, which included the loading angle, the embedment angle, the embedment position, the ... |
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Long-term analysis of the environmental effects on the global dynamic properties of a hybrid timber-concrete building
https://www.sciencedirect.com/science/article/pii/... [Vibration/Acoustic Performance] [Journal Article] 2022 C. Larsson, O. Abdeljaber, Å. Bolmsvik, M. Dorn This work presents three years of observations from a structural monitoring system collecting data ever since completing a four-story timber-concrete hybrid building in Sweden. Ambient vibrations of the building were measured using geophones, resulting in 3,100 datasets. The temperature and relative humidity were measured both externally using a weather station and internally using sensors embedded in several walls and a slab in the building.... |
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Low and Mid-rise hybrid CLT Infilled Steel Moment Resisting Frames Displacement Based Design
https://www.researchsquare.com/article/rs-1908558/... [Design/Architectural aspects] [Journal Article] 2022 S.R. Sabbagh-Yazd Recently, a novel hybrid structure has been developed as an alternative lateral-load resisting system at The University of British Columbia. The hybrid structure includes Cross Laminated Timber (CLT) shear panels as an infill in steel moment-resisting frames (SMRFs). To increase the suitability of the suggested system, first in this paper types of hybridization for timber-steel structure are discussed. In the second step, an iterative design method is expanded and formulated for a hybrid timbe... |
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Construction for Health; Reversing the Impacts
https://www.mdpi.com/2075-5309/12/8/1133... [Environmental Performance] [Journal Article] 2022 S. Shahnoori, M. Mohammadi The health of humans and the planet are the most vital contemporary issues and essential components of the Sustainable Development Goals (SDGs). Scientists and professionals strive for integrated, evolving, healthy, and sustainable solutions encompassing biodiversity and industrial ecology, while offering viable economic attainments. The building industry, especially construction, is an extensive economic counterpart that largely influences health on various levels. On a practical scale, most di... |
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Effect of Short-Term Simulated Rain Exposure on the Performance of Cross-Laminated Timber Angle Bracket Connections
https://ascelibrary.org/doi/10.1061/%28ASCE%29AE.1... [Moisture/Durability] [Journal Article] 2022 Shrenik Bora, Arijit Sinha, Andre R. Barbosa Connections play a vital role in the transfer of lateral forces and energy dissipation in cross-laminated timber (CLT) structural systems. However, moisture exposure (e.g., rain during or after construction) can affect the durability of CLT structural members and their connections due to the hygroscopic nature of wood. Limited knowledge exists on the moisture performance of CLT connections. Therefore, in this study, a CLT shear wall-to-diaphragm angle bracket connection was exposed to simulated ... |
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Mass timber alternatives in construction with plantation hardwoods
http://ecite.utas.edu.au/151191... [Raw Materials] [Conference Paper] 2022 M. Gutierrez, N. Kotlaaewski, M. Lee To compensate this, alternative timber resources for structural applications is paramount, to ensure demand for structural building products such as cross laminated timber (CLT) and glue laminated timber (GLT). The available volume of plantation pulplog and sawlog are two options that can bridge this gap in the structural market. Since 2020, CUSP building solutions has invested in an innovative manufacturing process and an extensive research program to uncover the remarkable physical and mechani... |
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Fire Safe Use of Wood in Buildings
https://www.taylorfrancis.com/books/oa-edit/10.120... [Fire Performance] [Book/Book Section] 2022 C. Dagenais, A. Just, B. Östman, A. Abu, D. Barber, M. Klippel, C. Maluk, A. Buchanan, A. Dunn, E. Claridge, C. Hammann, N. Werther, C. Wade It provides guidance on the design of timber buildings for fire safety, developed within the global network Fire Safe Use of Wood (FSUW) and with reference to Eurocode 5 and other international codes. It introduces the behaviour of fires in timber buildings and describes strategies for providing safety if unwanted fires occur. It provides guidance on building design to prevent any fires from spreading while maintaining the load-bearing capacity of structural timber elements, connections and comp... |
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Investigating the Behaviour of Short-Span FRP-Reinforced Glulam Beams
https://uwspace.uwaterloo.ca/bitstream/handle/1001... [Moisture/Durability] [Thesis/Dissertation] 2022 Yannick Vetter This study was conducted to determine the effects of the reinforcement quantity and orientation on the flexural response of short-span FRR-reinforced glulam beams. Special consideration was given to the depth-to-span ratio and the effect of partially and fully confined reinforcement configurations on the observed failure modes. A total of thirty glulam beams were tested under four-point loading with the load at failure, midspan deflection, strain distribution and failure mode being recorded and ... |
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Effects of spatial characteristics of footsteps sounds and non-acoustic factors on annoyance in lightweight timber buildings
https://www.sciencedirect.com/science/article/abs/... [Vibration/Acoustic Performance] [Journal Article] 2022 A. Frescura, P.J. Lee, Y. Soeta, A. Ariki This study investigates the effect of spatial characteristics of footsteps sound from upstairs in wooden residential buildings together with the influence of non-acoustic factors on annoyance ratings. Footsteps sound were recorded in the laboratory, where a typical lightweight timber joists floor is located between the source and receiving room. Two adults walked on the floor over three different paths (figure-of-eight, straight, and walking on the spot) at two different paces (very slow and nor... |
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Structural development of a novel punctually supported timber building system for multi-storey construction
https://www.sciencedirect.com/science/article/abs/... [Design/Architectural aspects] [Journal Article] 2022 A. Krtschil, L. Orozco, S. Bechert, H.J. Wagner, F. Amtsberg Though capable of allowing multi-directional spans, timber products such as cross-laminated timber are primarily utilized uni-directionally using linear supports like walls or beam elements. Recent building designs increasingly show punctual supports but with narrow column grid layouts. Support beams and narrow grids limit the design space for multi-storey timber buildings. To overcome these design limits, an integrative design concept for punctually supported timber slabs is being developed tha... |
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The Anthony Timberlands Center for Design and Materials Innovation
https://www.taylorfrancis.com/chapters/edit/10.120... [Case Study/Projects] [Book/Book Section] 2022 P. MacKeith, J. Boelkins This paper details the procurement process and the entries from the six finalists to illustrate 1) the variety of “applied research” design approaches evidenced in the six entries, in structure, envelope, systems, detail and construction methods; and 2) the criteria for “design excellence in timber and wood” that led to assessment and final selection.... |
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Mass timber buildings: The good, the bad and the ugly
https://www.taylorfrancis.com/chapters/edit/10.120... [Fire Performance] [Book/Book Section] 2022 A. Solarte, R. Couper The urgent need to limit global warming has led to the rise in the use of mass timber construction for high rise buildings. This paper outlines key advantages and disadvantages of mass timber construction within a spectrum of good, bad or ugly. Advantages include the increased speed of on-site construction through prefabrication, off-site processing, suitable for design for manufacture and assembly (DfMA). However, mass timber products are not manufactured everywhere adding a complexity of logis... |
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A building information modeling ‐ fire dynamics simulation integrated framework for the simulation of passive fire protection in a mid‐scale cross‐laminated timber compartment
https://login.ezp2.lib.umn.edu/login?qurl=https://... [Fire Performance] [Journal Article] 2022 Qi Sun, Yelda Turkan, Erica C. Fischer Construction fires are a big threat to worker safety and property safety. Mass timber buildings under construction are largely unprotected as they are not yet equipped with active fire protection systems. With the addition of Types IVA, B, and C, the 2021 International Building Code adopted stricter requirements for mass timber buildings that are under construction. Cross-laminated timber (CLT) is used as the primary structural element for high-rise mass timber buildings. However, to date, limit... |
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Bending, Compression and Bonding Performance of CLT Made from Malaysian Fast-Growing Timbers
https://www.techscience.com/jrm/v10n11/48730... [Mechanical Performance] [Journal Article] 2022 Norshariza Mohamad Bhkari, Lum Wei Chen, Anis Azmi, Muhammad Shaiful Nordin, Norman Wong Shew Yam, Zakiah Ahmad, Lee Seng Hua This study investigated the bending, compression as well as the bonding performance of CLT panels made from fast-growing timber species, i.e., Laran (Neolamarckia cadamba) and Batai (Paraserianthes falcataria). The variables studied were timber species (Laran and Batai), layers of lamination (3-layer and 5-layer), loading direction in bending (in-plane and out-of-plane), loading direction in compression (x-, y-, and z-axis) and different treatment conditions for bonding performance test. The des... |
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Moisture induced stresses in CLT made from hydrothermally modified wood
https://link.springer.com/article/10.1007/s00107-0... [Moisture/Durability] [Journal Article] 2022 Behbood Mohebby, Vahid Broushakian In the current research work, moisture gradients and moisture induced stresses (MiS) were investigated in cross laminated timber (CLT) bearing hydrothermally treated fr wood in its outermost laminations. Wooden blocks were cut from fir wood planks and hydrothermally treated in a stainless-steel reactor at 170 °C for a holding time of 30 min. The panels were made with combinations of untreated and treated wood with one as well as two treated layers laid up on both sides of the CLT samples. Afterw... |
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