Experimental and Numerical Study of Two-Story Post-Tensioned Seismic Resisting CLT Wall with External Hysteretic Energy Dissipaters
https://www.researchgate.net/publication/320281185... [Seismic Performance] [Conference Paper] 2017
Milena Massari, Marco Savoia, Andre R. Barbosa
Given the several positive aspects in using timber as an alternative construction material for tall buildings, mid- to high-rise timber structures are becoming progressively widespread. Moreover, there is a raised awareness in improving resilient structural systems that limit structural damage and minimize residual displacements. The novel aspects of resilient designs need innovative solutions for lateral resisting systems, which often require laboratory testing to provide the engineering knowle...

Lateral and withdrawal resistance of typical CLT connections
https://www.researchgate.net/publication/265521436... [Connectors] [Journal Article] 2010
Williams Muñoz, Mohammad Mohammad, Sylvain Gagnon
Several buildings have already been erected around the world using CLT which is a good testimony of the many advantages that this product offers. While CLT is well-established in Europe, work on the implementation of CLT products and systems have just begun in Canada and the US. Various fasteners and connection details are usually recommended by the CLT manufacturers. However, no clear details or guidelines on the structural performance of such connections are given. This is an exploratory study...

MAT242 – Cross-Laminated Timber in the 2015 IBC and NDS
https://www.awc.org/education/main/lists/mat-mater... [Standards/Building code] [Report] 2015
American Wood Council
Cross Laminated Timber (CLT), one of the new mass timber products, is now included as a structural system in both the 2015 International Building Code and the 2015 National Design Specification® for Wood Construction. This presentation will give an overview of relevant building codes and standards provisions and describe how they can be used in the structural design of CLT elements and structures. Topics related to connections, structural, and fire protection will be discussed....

Artificial Neural Network for Assessment of Energy Consumption and Cost for Cross Laminated Timber Office Building in Severe Cold Regions
https://research.thinkwood.com/en/permalink/catalo... [Environmental Performance] [Journal Article] 2018
Qi Dong, Kai Xing, Hongrui Zhang
This paper aims to develop an artificial neural network (ANN) to predict the energy consumption and cost of cross laminated timber (CLT) office buildings in severe cold regions during the early stage of architectural design. Eleven variables were selected as input variables including.....

Development and Evaluation of Mechanical Joints for Composite Floor Elements with Cross Laminated Timber
http://ltu.diva-portal.org/smash/get/diva2:990749/... [Connectors] [Thesis/Dissertation] 2015
Nicolas Jacquier
One of the important issues in the development of a multi-storey timber construction system is the definition of the floor solution. This thesis focuses on the development of composite floor solutions where Cross Laminated Timber (CLT) panels are used as a base element. Preliminary investigations on shear connections between prefabricated concrete beams and CLT panels were performed. The focus is on investigations on glulam-CLT composite beam elements, and the mechanical shear connectors used to...

Analytical Procedures for Determining Stiffness of CLT Elements in Bending
http://www.forestprod.org/buy_publications/resourc... [Mechanical Performance] [Journal Article] 2012
Marjan Popovski, Sylvain Gagnon
Various methods have been developed or adopted for the determination of design properties of CLT panels. Some of these methods are experimental in nature while others are analytical. Some methods even involve a combination of both empirical and analytical approaches based on model testing. Experimental evaluation involves determination of flexural properties by testing full-size panels or sections of panels with a specific span-to-depth ratio. The problem with the experimental approach is that e...

Timber Core-Walls for Lateral Load Resistance of Multi-Storey Timber Buildings
http://www.timberdesign.org.nz/wp-content/uploads/... [Seismic Performance] [Journal Article] 2014
A. Dunbar, D. Moroder, S. Pampanin, A. Buchanan
This paper describes the results of experimental tests on post-tensioned Cross-Laminated Timber (CLT) corewalls tested under bi-directional quasi-static seismic loading. The half-scale two-storey test specimens included a stair with half-flight landings. The use of CLT panels for multi-storey timber buildings is gaining popularity throughout the world, especially for residential construction. Post-tensioned timber core-walls for lift-shafts (elevator shafts) or stairwells can be used as tubular ...

Technical - Code Compliance Codes and Standards— XLam
https://www.xlam.co.nz/technical.html... [Commercial/Company Information] [Web Page] 2019
XLam
Product XLam CLT Our CLT Off-site Prefabrication Project Enquiry Form Technical Design Legal Specifications FAQs Cross-Laminated Timber Product Performance Construction Design Sustainability Contact Technical Code Compliance Codes and Standards As yet there are no Australian or NZ standards specific to the manufacture and use of CLT. XLam manufacture complies with Adopted Standards which govern the design, preparation, finger jointing, planing, lamination and verification of XLam CLT products: ...

STRUCTURE magazine | Cross-Laminated Timber Structural Floor and Roof Design
https://www.structuremag.org/?p=10054&replytocom=3... [Vibration/Acoustic Performance] [Magazine/Newspaper Article] 2016
Scott Breneman
In Articles, Structural Design Comments 1 Increased availability of cross-laminated timber (CLT) in North America, combined with successful use in projects worldwide, has generated interest in its properties and performance within the U.S. design community. With the inclusion of CLT in the 2015 International Building Code (IBC) and 2015 National Design Specification® (NDS®) for Wood Construction, curiosity is evolving, with some developers, architects and structural engineers using CLT in proje...

How Developers Enhance Mid-Rise Building Density Through Code-Compliant Strategies
https://www.thinkwood.com/news/how-developers-enha... [Standards/Building code] [Web Page] 2018
Think Wood
This edition of Code Counts examines several major applications of code that are helping drive Type III and V mid-rise development. We’ll look at the three major configurations behind a new generation of wood multi-story mixed-use and multi-residential projects: tuck-under, wrap-around, and podium. Then we’ll identify code provisions that help developers and owners safely increase mid-rise occupant density....

Earthquake Resistant Design and Sustainability through Wooden Composites in Multi-Storey Structures
http://www.eaee.org/Media/Default/2ECCES/2ecces_ss... [Tall Buildings] [Conference Paper] 2014
Aygül Ceylan, Z. Canan Girgin
In the past, while wood as a natural building material was preferred for only housing construction, today, engineered wood products are used as structural elements even in many different projects such as, schools, airport terminals, stadiums or indoor sport centres and finally in multi-storey houses nowadays. On the other hand, the sustainability is becoming a key focus. Engineered wood products are increasingly used for earthquake resistance as well as natural insulation and sustainable design....

How To Do Thirty-Four Shake Table Tests In One Summer
http://nees.ucsd.edu/workshops/pdf/2017/3rdannual/... [Seismic Performance] [Presentation] 2017
Shiling Pei
Story of NHERI TallWood Project 2017 Summer Testing...

Cyclic behavior of typical screwed connections for cross-laminated (CLT) structures
https://www.researchgate.net/publication/271725425... [Connectors] [Journal Article] 2015
Igor Gavric, Massimo Fragiacomo, Ario Ceccotti
This paper presents the results of an extensive experimental programme on typical cross-laminated timber (CLT) screwed connections conducted at CNR-IVALSA research institute. In-plane monotonic and cyclic shear and withdrawal tests were performed on screwed wall-to-wall, floor-to-floor and wall-to-floor CLT connections. Mechanical properties such as strength, stiffness, energy dissipation, ductility ratio and impairment of strength were evaluated. The experimental results showed good performance...

Experimental tests on annular ringed shank nails for seismic resistant Cross-Laminated Timber (CLT) structures
https://www.researchgate.net/publication/312525934... [Connectors] [Conference Paper] 2015
Matteo Izzi, Georg Flatscher, Giovanni Rinaldin, Massimo Fragiacomo, Gerhard Schickhofer
This paper presents an experimental programme on Simpson Strong-Tie annular ringed shank nails, conducted at the Institute of Timber Engineering and Wood Technology, Graz University of Technology. The fastener under investigation is commonly used in cross-laminated timber (CLT) buildings to anchor typical metal connectors to the timber panels, and the understanding of its performances is of particular interest for the design of earthquake resistant timber structures. Shear tests in parallel and ...

Fire performance of timber construction
https://www.researchgate.net/publication/244975876... [Fire Performance] [Journal Article] 2000
Andrew H Buchanan
This paper is a review of the performance of timber buildings exposed to fire. Important distinctions are made between the impacts of pre- and post- flashover fires, and between the performance of light timber framing and heavy timber construction. Recent literature is reviewed....

Analytical Methods for Determining Fire Resistance of Timber Members
https://www.researchgate.net/publication/298045571... [Fire Performance] [Book/Book Section] 2016
Robert H. White
The fire resistance ratings of wood members and assemblies, as with other materials, have traditionally been obtained by testing the assembly in a furnace in accordance with ASTM International (ASTM) Standard E119 �Standard test methods for fire tests of building construction and materials�, International Organization for Standardization (ISO) Standard 834 �Fire-resistance tests-Elements of building construction�, and similar standards. In the U.S., these ratings are published in listings, such ...

Overcoming the Fire Barrier to Tall Timber Construction
https://www.researchgate.net/publication/286937408... [Fire Performance] [Conference Paper] 2015
Alastair Bartlett, Kuba Gajewski, Sean Lineham, Daniel Thomson, Rory Hadden, Luke A. Bisby, Neal Butterworth
Architects' aspirations of tall buildings formed predominantly from exposed, structural timber elements are currently limited in part due to fire safety concerns, and a lack of available knowledge and understanding of the fire performance of such a structure. This paper presents some of the key areas of uncertainty, and highlights recent and ongoing research on engineered timber elements' fire behaviour. The pyrolysis, charring, structural performance in fire, flame spread, auto-extinction, and ...

Is the Cross-laminated timber (CLT) market an option for the hardwood industry?
https://www.sim.sbio.vt.edu/?cat=1... [Raw Materials] [Web Page] 2019
Henry Quesada
Sustainable Innovation Management Our mission is to make innovation successful Menu Skip to content Home About us Current Research Team Knowledge Database Database of ATVET Centers in Latin America Registration link Wood Identification in Historic Structures in Virginia Online Continuous Education Courses Category Archives: Uncategorized Is the Cross-laminated timber (CLT) market an option for the hardwood industry? The CLT standard, ANSI/APA PRG-320, does not admit hardwood lumber yet; a major...

Charring rate of wood for ASTM E 119 exposure
https://www.researchgate.net/publication/225262330... [Fire Performance] [Journal Article] 1992
Robert H. White, Erik V. Nordheim
Analytical methods that predict the endurance of structural wood members in a fire are based on the reduction of the cross section of the member caused by wood being charred. To define the charring rate in terms of more fundamental properties, empirical models were established. Eight species were tested for charring rates and material properties. Regression analysis was used to develop the models. The predictor variables for the initial factorial design included density, moisture content, treata...

Analysis of the Seismic Behavior of Structures with Cross-Laminated Timber Panels
https://www.revistadyna.com/busqueda/analisis-del-... [Seismic Performance] [Journal Article] 2018
Beatriz Gonzalez Rodrigo, Alberto Fraile De Lerma, Juan Carlos Mosquera Feijoo
The increasing incorporation of CLT wood panels as a sustainable building material for high-rise constructions requires an in-depth study of its behavior in the face of accidental seismic actions. Current research is focusing on the analysis of the response of joints to monotonous growing and cyclic loads, as these joints actively provide strength, rigidity, stability and ductility. The curves obtained from these analyses are being incorporated in the numerical models in order to be able to pred...