Skip header and navigation

10 records – page 1 of 1.

Structural Behaviour of Point-Supported CLT Floor Systems

https://research.thinkwood.com/en/permalink/catalogue1476
Year of Publication
2016
Topic
Mechanical Properties
Acoustics and Vibration
Material
CLT (Cross-Laminated Timber)
Application
Floors
Author
Popovski, Marjan
Chen, Zhiyong
Gafner, Bernhard
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
Floors
Topic
Mechanical Properties
Acoustics and Vibration
Keywords
Brock Commons
Natural Frequency
Stiffness
Deformation
Load Carrying Capacity
Two-Way
Compression
Failure Mechanisms
Openings
Point-Supported
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria
Summary
This paper presents an experimental investigation of the structural behaviour and dynamic characteristics of an innovative, double-span, point-supported Cross Laminated Timber (CLT) floor system for an 18-stroey woodhybrid student residence building at the University of British Columbia Campus in Vancouver, Canada. Eighteen CLT floor specimens with or without service openings were fabricated by three manufacturers and tested. The fundamental natural frequency, stiffness and deformability, load-carrying capacity, two-way action, compression perpendicular to grain at the supports, and the failure mechanism of the floor systems were investigated. In addition, the effect of openings in the floors was investigated along with the manufacturer-related properties of the CLT floors were examined. The tests gave an insight into the structural behaviour of this innovative floor system, provided test data that was used for calibration of the Finite Element Models of the building, and helped choose the right product for the floors.
Online Access
Free
Resource Link
Less detail

Design Method for Controlling Vibrations of Wood-Concrete Composite Floors Systems

https://research.thinkwood.com/en/permalink/catalogue1689
Year of Publication
2016
Topic
Acoustics and Vibration
Design and Systems
Mechanical Properties
Material
Timber-Concrete Composite
Application
Floors
Author
Hu, Lin
Cuerrier-Auclair, Samuel
Chui, Ying Hei
Ramzi, Redouane
Gagnon, Sylvain
Mohammad, Mohammad
Ni, Chun
Popovski, Marjan
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
Timber-Concrete Composite
Application
Floors
Topic
Acoustics and Vibration
Design and Systems
Mechanical Properties
Keywords
Natural Frequencies
Deflection
Bending Stiffness
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 4237-4245
Summary
Wood-concrete composite slab floors provide a promising solution for achieving long spans and shallow wood-based floor systems for large and tall wood buildings. In comparison with conventional wood floor systems, such long span and heavy floors have a lower fundamental natural frequency, which challenges the floor vibration controlled design. A laboratory study, including subjective evaluation and measurement of the natural frequencies and one-kN static deflections, was conducted on wood-concrete composite floors. Method of calculation of the composite bending stiffness of the wood-concrete composite floor is proposed. The design criterion for human comfort was derived from the subjective evaluation results using the calculated fundamental natural frequency and 1 kN static deflection of one meter wide strip of the composite floor. The equation to directly determine the vibration controlled spans from the stiffness and mass was derived. Limited verification was performed. Further verification is needed when more field wood-concrete composite floors become available.
Online Access
Free
Resource Link
Less detail

Deflection of CLT Shear Walls in Platform Construction

https://research.thinkwood.com/en/permalink/catalogue1974
Year of Publication
2018
Topic
Design and Systems
Material
CLT (Cross-Laminated Timber)
Application
Walls
Wood Building Systems

Strength and Stiffness of CLT Shear Walls in Platform Construction

https://research.thinkwood.com/en/permalink/catalogue1976
Year of Publication
2018
Topic
Design and Systems
Connections
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
Walls
Wood Building Systems

Lateral Performance of Cross-laminated Timber Shear Walls: Analytical and Numerical Investigations

https://research.thinkwood.com/en/permalink/catalogue2425
Year of Publication
2019
Topic
Design and Systems
Material
CLT (Cross-Laminated Timber)
Application
Walls

Force Based Design Guideline for Timber-Steel Hybrid Structures: Steel Moment Resisting Frames with CLT Infill Walls

https://research.thinkwood.com/en/permalink/catalogue83
Year of Publication
2015
Topic
Design and Systems
Seismic
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Tesfamariam, Solomon
Stiemer, Siegfried
Bezabeh, Matiyas
Goertz, Caleb
Popovski, Marjan
Goda, Katsuichiro
Organization
University of British Columbia
Year of Publication
2015
Country of Publication
Canada
Format
Report
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Design and Systems
Seismic
Keywords
Overstrength
Ductility
National Building Code of Canada
Timber-Steel Hybrid
Office Buildings
Residential Buildings
Language
English
Research Status
Complete
Summary
Provincial code changes have been made to allow construction of light wood-frame buildings up to 6 storeys in order to satisfy the urban housing demand in western Canadian cities. It started in 2009 when the BC Building Code was amended to increase the height limit for wood-frame structures from four to six. Recently, provinces of Quebec, Ontario and Alberta followed suit. While wood-frame construction is limited to six storeys, some innovative wood-hybrid systems can go to greater heights. In this report, a feasibility study of timber-based hybrid buildings is described as carried out by The University of British Columbia (UBC) in collaboration with FPInnovations. This project, funded through BC Forestry Innovation Investment's (FII) Wood First Program, had an objective to develop design guidelines for a new steel-timber hybrid structural system that can be used as part of the next generation "steel-timber hybrid structures" that is limited in scope to 20 storey office or residential buildings. ...
Online Access
Free
Resource Link
Less detail

Advanced Wood-Based Solutions for Mid-Rise and High-Rise Construction: Analytical Models for Balloon-Type CLT Shear Walls

https://research.thinkwood.com/en/permalink/catalogue1877
Year of Publication
2018
Topic
Design and Systems
Material
CLT (Cross-Laminated Timber)
Application
Walls
Author
Chen, Zhiyong
Cuerrier-Auclair, Samuel
Popovski, Marjan
Organization
FPInnovations
Year of Publication
2018
Country of Publication
Canada
Format
Report
Material
CLT (Cross-Laminated Timber)
Application
Walls
Topic
Design and Systems
Keywords
Lateral Loads
Shear
Mass Timber
Language
English
Research Status
Complete
Summary
Lack of research and design information for the seismic performance of balloon-type CLT shear walls prevents CLT from being used as an acceptable solution to resist seismic loads in balloon-type mass-timber buildings. To quantify the performance of balloon-type CLT structures subjected to lateral loads and create the research background for future code implementation of balloon-type CLT systems in CSA O86 and NBCC, FPInnovations initiated a project to determine the behaviour of balloon-type CLT construction. A series of tests on balloon-type CLT walls and connections used in these walls were conducted. Analytical models were developed based on engineering principles and basic mechanics to predict the deflection and resistance of the balloon-type CLT shear walls. This report covers the work related to development of the analytical models and the tests on balloon-type CLT walls that the models were verified against.
Online Access
Free
Resource Link
Less detail

Seismic Base Shear Modification Factors for Timber-Steel Hybrid Structure: Steel Moment Resisting Frames with CLT Infill Walls

https://research.thinkwood.com/en/permalink/catalogue1723
Year of Publication
2016
Topic
Seismic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
Hybrid Building Systems
Author
Bezabeh, Matiyas
Tesfamariam, Solomon
Popovski, Marjan
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
Hybrid Building Systems
Topic
Seismic
Mechanical Properties
Keywords
Timber-Steel Hybrid
Overstrength
Ductility
Force Modification Factors
Nonlinear Pushover Analysis
Adjusted Collapse Margin Ratios
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 4647-4654
Summary
In this paper, over-strength and ductility-related force modification factors are developed and validated using a collapse risk assessment approach for a timber-steel hybrid structure. The hybrid structure incorporates Cross Laminated Timber (CLT) infill walls within steel moment resisting frames. Following the FEMA P695 procedure...
Online Access
Free
Resource Link
Less detail

Direct Displacement Based Design of A Novel Hybrid Structure: Steel Moment-Resisting Frames with Cross Laminated Timber Infill Walls

https://research.thinkwood.com/en/permalink/catalogue15
Year of Publication
2015
Topic
Design and Systems
Seismic
Material
CLT (Cross-Laminated Timber)
Application
Walls
Author
Bezabeh, Matiyas
Tesfamariam, Solomon
Stiemer, Siegfried
Popovski, Marjan
Karacabeyli, Erol
Publisher
Earthquake Engineering Research Institute
Year of Publication
2015
Country of Publication
United States
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
Walls
Topic
Design and Systems
Seismic
Keywords
Timber-Steel Hybrid
Panels
Nonlinear Time History Analysis
Language
English
Research Status
Complete
Series
Earthquake Spectra
Summary
This study proposes an iterative direct displacement based design method for a novel steel-timber hybrid structure. The hybrid structure incorporates Cross Laminated Timber (CLT) shear panels as an infill in steel moment resisting frames. The proposed design method is applied to design 3-, 6-, and 9-story hybrid buildings with three bays and CLT infilled middle bay. Nonlinear time history analysis, using twenty earthquake ground motion records, is carried out to validate the performance of the design method. The results indicate that the proposed method effectively controls the displacements due to seismic excitation of the hybrid structure.
Online Access
Free
Resource Link
Less detail

Advanced Wood-Based Solutions for Mid-Rise and High-Rise Construction: Structural Performance of Post-Tensioned CLT Shear Walls with Energy Dissipators

https://research.thinkwood.com/en/permalink/catalogue1472
Year of Publication
2018
Topic
Design and Systems
Mechanical Properties
Seismic
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
LVL (Laminated Veneer Lumber)
LSL (Laminated Strand Lumber)
Application
Shear Walls
Author
Chen, Zhiyong
Popovski, Marjan
Symons, Paul
Organization
FPInnovations
Year of Publication
2018
Country of Publication
Canada
Format
Report
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
LVL (Laminated Veneer Lumber)
LSL (Laminated Strand Lumber)
Application
Shear Walls
Topic
Design and Systems
Mechanical Properties
Seismic
Keywords
Compression Tests
Compression Strength
Energy Dissipation
Post-Tensioned
Pres-Lam
Monotonic Loading
Reverse Cyclic Loading
Language
English
Research Status
Complete
Summary
The latest developments in seismic design philosophy have been geared towards developing of so called "resilient" or "low damage" innovative structural systems that can reduce damage to the structure while offering the same or higher levels of safety to occupants. One such innovative structural system is the Pres-Lam system that is a wood-hybrid system that utilizes post-tensioned (PT) mass timber components in both rigid-frame and wall-based buildings along with various types of energy disspators. To help implement the Pres-Lam system in Canada and the US, information about the system performance made with North American engineered wood products is needed. That information can later be used to develop design guidelines for the designers for wider acceptance of the system by the design community.Several components influence the performance of the Pres-Lam systems: the load-deformation properties of the engineered wood products under compression, load-deformation and energy dissipation properties of the dissipators used, placement of the dissipators in the system, and the level of post-tensioning force. The influence of all these components on the performance of Pres-Lam wall systems under gravity and lateral loads was investigated in this research project. The research project consisted of two main parts: material tests and system tests.
Online Access
Free
Resource Link
Less detail

10 records – page 1 of 1.