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8 records – page 1 of 1.

Cross-Laminated Timber for Seismic Regions: Progress and Challenges for Research and Implementation

https://research.thinkwood.com/en/permalink/catalogue162
Year of Publication
2014
Topic
Seismic
Material
CLT (Cross-Laminated Timber)
Application
Shear Walls
Author
Pei, Shiling
van de Lindt, John
Popovski, Marjan
Berman, Jeffrey
Dolan, Daniel
Ricles, James
Sause, Richard
Blomgren, Hans-Erik
Rammer, Douglas
Publisher
American Society of Civil Engineers
Year of Publication
2014
Country of Publication
United States
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
Shear Walls
Topic
Seismic
Keywords
Lateral Loads
Prefabrication
US
Language
English
Research Status
Complete
Series
Journal of Structural Engineering
Summary
Compared to light-frame wood shear walls, it is relatively difficult for panelized CLT shear walls to achieve similar levels of lateral deflection without paying special attention to design details, i.e., connections. A design lacking ductility or energy dissipating mechanism will result in high acceleration amplifications and excessive global overturning demands for multistory buildings, and even more so for tall wood buildings. Although a number of studies have been conducted on CLT shear walls and building assemblies since the 1990s, the wood design community’s understanding of the seismic behavior of panelized CLT systems is still in the learning phase, hence the impetus for this article and the tall CLT building workshop, which will be introduced herein. For example, there has been a recent trend in engineering to improve resiliency, which seeks to design a building system such that it can be restored to normal functionality sooner after an earthquake than previously possible, i.e., it is a resilient system. While various resilient lateral system concepts have been explored for concrete and steel construction, this concept has not yet been realized for multistory CLT systems. This forum article presents a review of past research developments on CLT as a lateral force-resisting system, the current trend toward design and construction of tall buildings with CLT worldwide, and attempts to summarize the societal needs and challenges in developing resilient CLT construction in regions of high seismicity in the United States.
Online Access
Free
Resource Link
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Design of a "Mass-Timber" Building with Different Seismic Bracing Technologies

https://research.thinkwood.com/en/permalink/catalogue1900
Year of Publication
2017
Topic
Seismic
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Application
Wood Building Systems
Frames
Author
Fini, Giulio
Pozza, Luca
Loss, Cristiano
Tannert, Thomas
Publisher
ANIDIS Earthquake Engineering in Italy
Year of Publication
2017
Country of Publication
Italy
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Application
Wood Building Systems
Frames
Topic
Seismic
Keywords
Timber Frames
Prefabrication
Seismic Performance
Language
English
Conference
17th ANIDIS Conference
Research Status
Complete
Notes
September 17-21, 2017, Pistoia, Italy
ISBN
978-886741-8541
ISSN
2532-120X
Online Access
Free
Resource Link
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Developing an Application for Mass Plywood Panels in Seismic and Energy Wall Retrofit

https://research.thinkwood.com/en/permalink/catalogue2568
Topic
Energy Performance
Seismic
Material
MPP (Mass Plywood Panel)
Application
Walls
Building Envelope
Organization
University of Oregon
Oregon State University
TallWood Design Institute
Country of Publication
United States
Material
MPP (Mass Plywood Panel)
Application
Walls
Building Envelope
Topic
Energy Performance
Seismic
Keywords
Retrofit
Assembly
Prefabrication
Research Status
In Progress
Notes
Project contact is Mark Fretz at the University of Oregon
Summary
University of Oregon and Oregon State University are collaborating through TallWood Design Institute (TDI) to upgrade aging, energy inefficient and seismically unprepared multifamily housing by developing a mass plywood (MPP) retrofit panel assembly that employs digital workflows and small diameter logs (down to 5") to create an economically viable energy/seismic retrofit model for the West Coast and beyond. The project has broad potential to support forested federal land management agencies and private forestry by proving a new market for small diameter logs.
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Diaphragmatic Behaviour of Hybrid Cross-Laminated Timber Steel Floors

https://research.thinkwood.com/en/permalink/catalogue1909
Year of Publication
2018
Topic
Seismic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Steel-Timber Composite
Application
Floors

Energy, Seismic, and Architectural Renovation of RC Framed Buildings with Prefabricated Timber Panels

https://research.thinkwood.com/en/permalink/catalogue2503
Year of Publication
2020
Topic
Seismic
Design and Systems
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems

Expanding Opportunities for Mid-Rise Buildings in Chile through the Application of Timber Panel Systems

https://research.thinkwood.com/en/permalink/catalogue193
Year of Publication
2012
Topic
Market and Adoption
Seismic
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Rivera, Cristián
Organization
University of British Columbia
Year of Publication
2012
Country of Publication
Canada
Format
Thesis
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Market and Adoption
Seismic
Keywords
Chile
Codes
Mid-Rise
Prefabrication
City Densification
Language
English
Research Status
Complete
Summary
During the last few years, the merging of timber building tradition with the application of new technologies has produced new prefabricated building systems in Europe and North America. Mid-rise buildings present a unique opportunity to apply new timber technologies. Chile has shown sustained growth of buildings construction during the past decades but little further development in the use of wood. To establish the feasibility of timber systems applied to the Chilean context this research considered social aspects, technical aspects and local standards related to the manufacture and construction using timber components. A project proposal is used to analyze the architectural applications of timber systems according to the Chilean context. The design considers the case of densification in the city of Santiago and investigates the possibility of developing mid-rise structures using the structural properties and features of timber systems. So far only two systems applied to mid-rise structures have been tested for seismic resistance on full scale prototypes: Midply and Cross Laminated Timber.
Online Access
Free
Resource Link
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Seismic Design of Core-Walls for Multi-Storey Timber Buildings

https://research.thinkwood.com/en/permalink/catalogue134
Year of Publication
2013
Topic
Design and Systems
Seismic
Material
CLT (Cross-Laminated Timber)
Application
Shafts and Chases
Author
Dunbar, Andrew
Pampanin, Stefano
Palermo, Alessandro
Buchanan, Andrew
Year of Publication
2013
Country of Publication
New Zealand
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
Shafts and Chases
Topic
Design and Systems
Seismic
Keywords
Multi-Storey
Prefabrication
Pres-Lam
Residential
Quasi-Static Loading
Energy Dissipation
U-Shaped Flexural Plates
Language
English
Conference
New Zealand Society for Earthquake Engineering Conference
Research Status
Complete
Notes
April 26-28, 2013, Wellington, New Zealand
Summary
This paper describes options for seismic design of pre-fabricated timber core-wall systems, used as stairwells and lift shafts for lateral load resistance in multi-storey timber buildings. The use of Cross-Laminated Timber (CLT) panels for multi-storey timber buildings is gaining popularity throughout the world, especially for residential construction. This paper describes the possible use of CLT core-walls for seismic resistance in open-plan commercial office buildings in New Zealand. Previous experimental testing at the University of Canterbury has been done on the in-plane behaviour of single and coupled Pres-Lam post-tensioned timber walls. However there has been very little research done on the behaviour of timber walls that are orthogonal to each other and no research into CLT walls in the post-tensioned Pres-Lam system. This paper describes the proposed test regime and design detailing of two half-scale twostorey CLT stairwells to be tested under a bi-directional quasi-static loading. The test specimens will include a half-flight stair case with landings within the stairwell. The “High seismic option” consists of post-tensioned CLT walls coupled with energy dissipating U-shaped Flexural Plates (UFP) attached between wall panels and square hollow section steel columns at the corner junctions. An alternative “Low seismic option” uses the same post-tensioned CLT panels, with no corner columns or UFPs. The panels will be connected by screws to provide a semi-rigid connection, allowing relative movement between the panels producing some level of energy dissipation.
Online Access
Free
Resource Link
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Structural Performance of a Hybrid Timber Wall System for Emergency Housing Facilities

https://research.thinkwood.com/en/permalink/catalogue2745
Year of Publication
2021
Topic
Design and Systems
Seismic
Material
CLT (Cross-Laminated Timber)
Application
Walls
Hybrid Building Systems
Author
Casagrande, Daniele
Sinito, Ester
Izzi, Matteo
Pasetto, Gaia
Polastri, Andrea
Publisher
ScienceDirect
Year of Publication
2021
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
Walls
Hybrid Building Systems
Topic
Design and Systems
Seismic
Keywords
Prefabrication
Modular
Emergency Housing
Temporary Building
Hybrid Timber Frame
Seismic Behaviour
Language
English
Research Status
Complete
Series
Journal of Building Engineering
Summary
This paper presents an innovative and sustainable timber constructive system that could be used as an alternative to traditional emergency housing facilities. The system proposed in this study is composed of prefabricated modular elements that are characterized by limited weight and simple assembly procedures, which represent strategic advantages when it comes facing a strong environmental disaster (e.g. an earthquake). The complete dismantling of structural elements and foundations is granted thanks to specific details and an innovative connection system called X-Mini, capable of replacing traditional anchoring devices (i.e. hold downs and angle brackets) by resisting both shear and tension loads. This constructive system, denoted as Hybrid Timber Frame (HTF), takes advantage of the strong prefabrication, reduced weight of light-frame timber systems, and of the excellent strength properties of the Cross Laminated Timber (CLT) panels. Specifically, the solid-timber members typically used in the structural elements of light-frame systems are replaced by CLT linear elements. The results of experimental tests and numerical simulations are critically presented and discussed, giving a detailed insight into the performance of the HTF under seismic conditions.
Online Access
Free
Resource Link
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8 records – page 1 of 1.