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27 records – page 1 of 3.

Adaptation of Advanced High R-Factor Bracing Systems into Heavy Timber Frames

https://research.thinkwood.com/en/permalink/catalogue1760
Year of Publication
2016
Topic
Seismic
Design and Systems
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
Frames
Author
Gilbert, Colin
Erochko, Jeffrey
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
Glulam (Glue-Laminated Timber)
Application
Frames
Topic
Seismic
Design and Systems
Mechanical Properties
Keywords
Quasi-Static
Cyclic Testing
Ductility
Damping Devices
R-factors
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 5068-5077
Summary
Timber provides attractive earthquake performance characteristics for regions of high seismic risk, particularly its high strength-to-weight ratio; however, current timber structural systems are associated with relatively low design force reduction factors due to their low inherent ductility when compared to high-performance concrete and steel...
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Analytical Model to Evaluate the Equivalent Viscous Damping of Timber Structures with Dowel-Type Fastener Connections

https://research.thinkwood.com/en/permalink/catalogue1893
Year of Publication
2012
Topic
Connections
Application
Frames

Combination of Steel Plate Shear Walls and Timber Moment Frames for Improved Seismic Performance

https://research.thinkwood.com/en/permalink/catalogue2735
Year of Publication
2020
Topic
Seismic
Material
CLT (Cross-Laminated Timber)
Application
Shear Walls
Frames
Author
Iqbal, Asif
Todorov, Borislav
Billah, Muntasir
Year of Publication
2020
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
Shear Walls
Frames
Topic
Seismic
Keywords
Timber Moment Frames
Steel Plate Shear Walls
Hybrid
Seismic Performance
Interstory Drifts
Language
English
Conference
World Conference on Earthquake Engineering
Research Status
Complete
Summary
Recent interests in adopting sustainable materials and developments in construction technology have created a trend of aiming for greater heights with timber buildings. With the increased height these buildings are subjected to higher level of lateral load demand. A common and efficient way to increase capacity is to use shearwalls, which can resist significant part of the load on the structures. Prefabricated mass timber panels such as those made of Cross-Laminated Timber (CLT) can be used to form the shearwalls. But due to relatively low stiffness value of timber it is often difficult to keep the maximum drifts within acceptable limit prescribed by building codes. It becomes necessary to either increase wall sizes to beyond available panel dimensions or use multiple or groups of walls spread over different locations over the floor plan. Both of the options are problematic from the economic and functional point of view. One possible alternative is to adopt a Hybrid system, using Steel Plate Shear Walls (SPSW) with timber moment frames. The SPSW has much higher stiffness and combined with timber frames it can reduce overall building drifts significantly. Frames with prefabricated timber members have considerable lateral load capacity. For structures located in seismic regions the system possesses excellent energy dissipation ability with combination of ductile SPSW and yielding elements within the frames. This paper investigates combination of SPSW with timber frames for seismic applications. Numerical model of the system has been developed to examine the interaction between the frames and shear walls under extreme lateral load conditions. Arrangements of different geometries of frames and shear walls are evaluated to determine their compatibility and efficiency in sharing lateral loads. Recommendations are presented for optimum solutions as well as practical limits of applications.
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Connections with Threaded Rods in Moment Resisting Frames

https://research.thinkwood.com/en/permalink/catalogue1495
Year of Publication
2016
Topic
Mechanical Properties
Connections
Material
CLT (Cross-Laminated Timber)
Application
Frames
Author
Arne Malo, Kjell
Stamatopoulos, Haris
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
Frames
Topic
Mechanical Properties
Connections
Keywords
Moment Resistance
Threaded Rods
Beam Column Connection
Rotational Stiffness
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 200-208
Summary
Building owners often state requirements that new buildings shall have open and flexible architecture in order to allow flexible use and future changes. A way to improve timber buildings in that direction is to increase the stiffness of the connections between horizontal and vertical members of the structural systems. This paper presents some numerical and analytical considerations with respect to the stiffness requirements for moment resisting timber connections. It also presents experimental tests and results for a moment resisting connection with inclined threaded rods installed in predrilled holes.
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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
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Development of a Heavy Timber Moment-Resisting Frame with Ductile Steel Links

https://research.thinkwood.com/en/permalink/catalogue1657
Year of Publication
2016
Topic
Connections
Mechanical Properties
Seismic
Material
Solid-sawn Heavy Timber
Application
Frames
Author
Gohlich, Ryan
Erochko, Jeffrey
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
Solid-sawn Heavy Timber
Application
Frames
Topic
Connections
Mechanical Properties
Seismic
Keywords
Mid-Rise
Self-Tapping Screws
Moment-Resisting
Strength
Stiffness
Ductility
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 3571-3580
Summary
To improve the seismic performance of mid-rise heavy timber moment-resisting frames, a hybrid timbersteel moment-resisting connection was developed that incorporates specially detailed replaceable steel yielding link elements fastened to timber beams and columns using self-tapping screws (STS). Performance of the connection was verified using four 2/3 scale experimental tests. The connection reached a moment of 142 kN m at the column face while reaching a storey drift angle of 0.05 rad. Two specimens utilizing a dogbone detail in the steel link avoided fracture of the link, while two specimens absent of the dogbone detail underwent brittle failure at 0.05 rad drift. All four test specimens met the acceptance criteria in the AISC 341-10 provisions for steel moment frames. The STS connections exhibited high strength and stiffness, and all timber members and self-tapping screw connections remained elastic. The results of the experimental program indicated that this hybrid connection is capable of achieving a ductility factor similar to that of a steel-only moment-resisting connection. This research suggests that the use of high ductility factors in the design of timber systems that use the proposed hybrid connection would be appropriate, thus lowering seismic design base shears and increasing structure economy.
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Development of Assembling Large Cross-Section Timber Joint System by High Ductility Wood Frame Structure

https://research.thinkwood.com/en/permalink/catalogue1565
Year of Publication
2016
Topic
Connections
Seismic
Material
LVL (Laminated Veneer Lumber)
Application
Frames
Author
Matsumoto, Shinya
Okamoto, Hajime
Takemoto, Mitsuhiro
Sato, Masanori
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
LVL (Laminated Veneer Lumber)
Application
Frames
Topic
Connections
Seismic
Keywords
Joints
Fiber Reinforced Plastics
Ductility
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 1580-1587
Summary
We propose the high productivity timber joint system based on combining the medium-sized wood lumber as assembly large cross-section member. In general, the wood frame structures are required high ductility performance. In this study, the surfaces of the member joints are covered with fiber reinforced plastics (FRP) to improve the mechanical properties to achieve high ductility wood joints. It will be construction of outstanding architectural space to earthquake resistance by these wood frame structure. The purpose of this study is to investigate the seismic performance of joint and to propose the assembling large cross-section timber joint system by high ductility wood frame structure
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Development of Timber Buckling Restrained Braces for Mass Timber Braced Frames

https://research.thinkwood.com/en/permalink/catalogue2544
Year of Publication
2019
Topic
Seismic
Design and Systems
Application
Frames
Author
Murphy, Colton
Pantelides, Chris
Blomgren, Hans-Erik
Rammer, Douglas
Year of Publication
2019
Country of Publication
United States
Format
Conference Paper
Application
Frames
Topic
Seismic
Design and Systems
Keywords
Brace
Buckling
Damping
Fuse
Seismic
Structure
Timber
Language
English
Conference
International Network on Timber Engineering Research
Research Status
Complete
Summary
Buckling Restrained Brace Frames (BRBF) are a proven and reliable method to provide an efficient lateral force resisting system for new and existing structures in earthquake prone regions. The fuse-type elements in this system facilitate stable energy dissipation at large load deformation levels. Currently, the new trend towards mass timber vertical structures creates a need for a lightweight compatible lateral force resisting system. A Buckling Restrained Brace (BRB) component is possible to construct and feasible to implement when combining a steel core with a mass timber casing herein named the Timber-Buckling Restrained Brace (T-BRB). T-BRBs when combined with mass timber beam and column elements can create a system that will have advantages over the current steel framed BRBF system when considering recyclability, sustainability, framing compatibility, and performance. This paper presents findings on small scale testing of candidate engineered wood products for the T-BRB casing and testing of six full scale 12 ft long 60 kip braces according to code prescribed loading protocols and acceptance criteria.
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Direct Displacement-Based Seismic Design of Timber Structures with Dowel-Type Fastener Connections

https://research.thinkwood.com/en/permalink/catalogue1899
Year of Publication
2012
Topic
Seismic
Connections
Application
Frames
Walls
Wood Building Systems
Author
Loss, Cristiano
Piazza, Maurizio
Zonta, Daniele
Publisher
Sociedade Portuguesa de Engenharia Sismica (SPES)
Year of Publication
2012
Country of Publication
Portugal
Format
Conference Paper
Application
Frames
Walls
Wood Building Systems
Topic
Seismic
Connections
Keywords
Direct Displacement-Based Design
Equivalent Viscous Damping
Dowel Type Fastener
Language
English
Conference
15WCEE
Research Status
Complete
Notes
September 24-28, 2012, Lisbon, Portugal
ISBN
978-1-63439-651-6
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Dynamic Evaluation of Hybrid Timber-Steel Moment-Frame Structure Using Resilient Slip Friction Connections

https://research.thinkwood.com/en/permalink/catalogue1756
Year of Publication
2016
Topic
Connections
Seismic
Mechanical Properties
Material
Steel-Timber Composite
Application
Frames
Author
Valadbeigi, Armin
Zarnani, Pouyan
Quenneville, Pierre
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
Steel-Timber Composite
Application
Frames
Topic
Connections
Seismic
Mechanical Properties
Keywords
Resilient Slip Friction Joint
Damping
Base Shear
Displacement
Acceleration
Self-Centering
Moment-Resisting
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 5031-5040
Summary
This study introduces a new resilient slip friction joint for framed hybrid structures. The proposed connection has a self-centring behaviour in addition to damping characteristic. This innovative Resilient Slip Friction (RSF) joint is replaced with the conventional beam to column connections. The RSF joint provides energy dissipation...
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27 records – page 1 of 3.