Steifigkeit und Eigenfrequenzen im mehrgeschossigen Holzbau
http://doi.wiley.com/10.1002/bate.201500105... [Seismic Performance] [Journal Article] 2016
Johannes Hummel, Werner Seim, Simone Otto
Dieser Fachaufsatz befasst sich mit der Fragestellung der Bestimmung der Eigenfrequenz von mehrgeschossigen Konstruktionen aus Holzrahmenelementen und Brettsperrholzelementen im Hinblick auf eine Erdbebenberechnung. Geeignete Methoden für die Eigenfrequenzberechnung für Holzkonstruktionen werden vorgestellt. Im Mittelpunkt steht vor allem die Festlegung der Steifigkeit. Es werden Ansätze für die Ermittlung der Steifigkeit von Wandelementen vorgestellt und mit Steifigkeiten aus Versuchen an Wande...

Ambient vibration testing and modal analysis of multi-storey cross-laminated timber buildings
http://schd.ws/hosted_files/wcte2014/08/ABS088_Rey... [Vibration/Acoustic Performance] [Conference Paper] 2014
Thomas Reynolds, Åsa Bolmsvik, Johan Vessby, Wen-Shao Chang, Richard Harris, Jonathan Bawcombe, Julie Bregulla
The ambient movement of three modern multi-storey timber buildings has been measured and used to determine modal properties. This information, obtained by a simple, unobtrusive series of tests, can give insights into the structural performance of these forms of building, as well as providing information for the design of future, taller timber buildings for dynamic loads. For two of the buildings, the natural frequency has been related to the lateral stiffness of the structure, and compared with...

Direct displacement design of tall cross laminated timber platform buildings with inter-story isolation
https://www.sciencedirect.com/science/article/pii/... [Seismic Performance] [Journal Article] 2018
Vahab Bolvardi, Shiling Pei, John W. van de Lindt, James D. Dolan
Cross Laminated Timber (CLT) is a relatively new engineered wood material viable for the tall building construction. Currently, existing multi-story CLT buildings are mostly built in regions with low seismicity. Due to the lightweight nature of the wood material, CLT buildings have a relatively lower seismic force demand and great potential to achieve resilient performance in earthquakes. This study explores the potential use of an inter-story isolation system to achieve seismically resilient pe...

Seismic testing of post-tensioned Pres-Lam core walls using cross laminated timber
https://www.sciencedirect.com/science/article/pii/... [Seismic Performance] [Journal Article] 2018
Daniel Moroder, Tobias Smith, Andrew Dunbard, Stefano Pampanin, Andrew Buchanan
With the increasing demand for multi-storey timber buildings in areas with high wind loads and high seismic activity, stiff lateral load resisting systems are becoming a crucial design component. Post-tensioned Pres-Lam mass timber lift shafts and stairwell core walls not only provide a strong and very stiff lateral load resisting system, but also damage limiting response in the case of a large seismic event. This paper describes the results of experimental tests on Cross-Laminated Timber (CLT) ...

Cross-laminated timber connections assembled with a combination of screws in withdrawal and screws in shear
https://www.sciencedirect.com/science/article/pii/... [Connectors] [Journal Article] 2018
Afrin Hossain, Marjan Popovski, Thomas Tannert
The research presented in this paper examines the performance of 3-ply cross-laminated timber (CLT) panels connected with self-tapping screws (STS). Half-lap joints with STS loaded in either shear or withdrawal along with an innovative solution combining these two approaches were evaluated in a total of 24 quasi-static monotonic and 15 reversed cyclic tests. The CLT joint performance was evaluated in terms of load-carrying capacity, yield strength, deformation capacity, stiffness, and ductility....

Mechanical characterization of a pre-fabricated connection system for cross laminated timber structures in seismic regions
https://www.sciencedirect.com/science/article/pii/... [Connectors] [Journal Article] 2018
A. Polastri, I. Giongo, A. Angelic, R. Brandner
This paper focuses on the point-to-point X-RAD connection system for the construction of cross laminated timber buildings in earthquake prone areas. Tests on X-RAD connectors subjected to “shear-tension” and “shear-compression” loading configurations are presented as supplement to the experimental data provided in previously published research. Tests aimed at characterizing the behavior of timber walls assembled with the system and loaded by lateral force are also reported. A capacity domain th...

In-Plane Stiffness of Traditional Timber Floors Strengthened with CLT
https://link.springer.com/content/pdf/10.1007%2F97... [Alternative/Hybrid Configurations] [Journal Article] 2014
Jorge M. Branco, Milos Kekeliak, Paulo B. Lourenco
Five full-scale timber floors were tested in order to analyze the in-plane behaviour of these structural systems. The main objective was to assess the effectiveness of the in-plane strengthening using cross laminated timber (CLT). For that, one unstrengthened specimen (original), one specimen strengthened with a second wood board, two specimens strengthened with 3 CLT panels and one specimen strengthened with 2 CLT panels were tested. Moreover, because of its importance in the composite behaviou...

Traditional and Engineered Wood Products
http://awc.org/pdf/education/mat/AWC-MAT210-EWP-2h... [General Information] [Presentation] 2015
American Wood Council
This course is an introduction to the ever-growing family of traditional and engineered wood products (EWP). Products covered are lumber, gluedlaminated timber (glulam), cross-laminated timber, structural composite lumber, wood I-joists, and wood structural panels...

Tall Wood Takes a Stand
http://awc.org/pdf/education/mat/ReThinkMag-MAT241... [Markets] [Report] 2014
reThink Wood
...

Cross-Laminated Timber in the 2015 IBC and NDS
http://awc.org/pdf/education/mat/AWC-MAT242-CLT-20... [Standards/Building code] [Presentation] 2015
American Wood Council
Cross Laminated Timber (CLT), one of the new mass timber products, is now included as a structural system in both eh 2015 IBC and 2015 NDS 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....

How New Trends in Wood Construction Comply with the Building Code
http://awc.org/pdf/education/mat/AWC-MAT250-WoodTr... [Standards/Building code] [Presentation] 2014
American Wood Council
...

Code Applications for Nail-laminated Timber, Glued-laminated Timber and Cross-Laminated Timber
http://awc.org/pdf/education/mat/AWC-MAT252-1-Glul... [Standards/Building code] [Presentation] 2015
American Wood Council
...

Blast Testing, Take Two! An Update on CLT Blast Test Research
https://www.fpl.fs.fed.us/labnotes/?p=27066... [Fire Performance] [Magazine/Newspaper Article] 2018
Rebecca Wallace
...

Overview of a Project to Quantify Seismic Performance Factors for Cross Laminated Timber Structures in the United States
https://www.fpl.fs.fed.us/products/publications/sp... [Seismic Performance] [Book/Book Section] 2014
M. Omar Amini, John W. van de Lindt, Shiling Pei, Douglas Rammer, Phil Line, Marjan Popovski
Cross-laminated Timber (CLT) has been extensively used in Europe and is now gaining momentum in North America; both Canada and more recently the U.S. Construction projects have shown that CLT can effectively be used as an alternative construction material in mid-rise structures and has significant potential in commercial and industrial buildings. In the United States, the CLT system is not currently recognized in seismic design codes and therefore a seismic design can only be performed through a...

KLH Structural pre-analysis tables
https://www.klh.at/en/download/public/Kreuzlagenho... [Design/Architectural aspects] [Brochure/Product Sheet] 2018
KLH Massivholz GmbH
...

Industrial Buildings - A case study
http://cwc.ca/wp-content/uploads/2018/06/Industria... [Markets] [Report] 2018
Canadian Wood Council
This case study examines three recently completed industrial buildings in southern British Columbia, each of which uses engineered mass timber products and systems in a distinct and different way. Together, they offer insights into how industrial construction might evolve to offer greater environmental performance, speed and flexibility of construction, at little additional cost over traditional methods....

Opportunity Knocks…on Wood Local project exhibits first-of-its-kind structure
http://www.fpl.fs.fed.us/labnotes/?p=1522... [General Information] [Web Page] 2013
Rebecca Wallace
Research at FPL often works toward moving new or improved wood products into mainstream use. Cross-laminated timber (CLT) is one such product. CLT is a solid panel made of bonded layers of lumber intended for roof, floor, or wall applications. It is a highly “green” material made from an abundant renewable resource; it also sequesters carbon, has low embodied energy, and has excellent aesthetic, structural, and thermal properties....

WoodSolutions Tutorials
https://www.woodsolutions.com.au/articles/woodsolu... [General Information] [Web Page]
WoodSolutions
...

Full-scale static and dynamic experiments of hybrid CLT–concrete composite floor
https://www.sciencedirect.com/science/article/pii/... [Vibration/Acoustic Performance] [Journal Article] 2018
Khai Quang Mai, Aron Park, Khoa TanNguyen, Kihak Lee
The Cross-Laminated Timber (CLT) concrete composite floor can successfully address the issues of conventional wood product and become an attractive alternative material for conventional reinforced concrete floors in mid to high-rise building. The purpose of this research was to fully evaluate the capacity of this novel hybrid composite material under both dynamic and static conditions, before such this hybrid system becomes widely employed. This was achieved by performing a full-scale testing o...

Le bois atteint de nouveaux sommets
https://www.cecobois.com/publications_documents/CE... [Vibration/Acoustic Performance] [Report] 2018
Construire en Bois
...