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Lateral Testing of Glued Laminated Timber Tudor Arch

https://research.thinkwood.com/en/permalink/catalogue1722
Year of Publication
2016
Topic
Seismic
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
Arches
Author
Rammer, Douglas
Line, Philip
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
Glulam (Glue-Laminated Timber)
Application
Arches
Topic
Seismic
Mechanical Properties
Keywords
Full Scale
Lateral Load
Damping
Deformation
Failure Modes
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 4638-4646
Summary
Glued laminated timber Tudor arches have been in wide use in the United States since the 1930s, but detailed knowledge related to seismic design in modern U.S. building codes is lacking. FEMA P-695 (P-695) is a methodology to determine seismic performance factors for a seismic force resisting system. A limited P-695 study for...
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Seismic Analysis of Three-Hinge Glulam Tudor Arches Using the FEMA P-695 Methodology

https://research.thinkwood.com/en/permalink/catalogue693
Year of Publication
2014
Topic
Seismic
Material
Glulam (Glue-Laminated Timber)
Application
Arches
Author
Charney, Finley
Eberle, Jonathan
Line, Philip
Kochkin, Vladimir
Year of Publication
2014
Country of Publication
Canada
Format
Conference Paper
Material
Glulam (Glue-Laminated Timber)
Application
Arches
Topic
Seismic
Keywords
Maximum Considered Earthquake
Seismic Response Modification Factor
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 10-14, 2014, Quebec City, Canada
Summary
This paper discusses the determination of the ASCE 7 seismic response modification factor R for three-hinge glulam Tudor arches. In an attempt to meet this objective, a limited application of the methods and procedures outlined in FEMA P-695 were used to assess the performance of a variety of arch designs. Computational models were created using finite elements within OpenSees to accurately depict the behaviour of the arch. When the crown connections were redesigned using load combinations incorporating over-strength, all of the light gravity load designs systems were successfully able to demonstrate a probability of collapse of less than ten percent when subjected to Maximum Considered Earthquake (MCE) level of ground shaking. Systems designed for heavy gravity did not pass; however, a variety of sidestudies on the influence of inelastic behaviour in the base connections, and varied levels of damping indicate that acceptance criteria of FEMA P-695 may be met through refined modeling assumptions based on results of testing.
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Structural Performance of the Second Oldest Glued-Laminated Structure in the United States

https://research.thinkwood.com/en/permalink/catalogue1118
Year of Publication
2014
Topic
Serviceability
Material
Glulam (Glue-Laminated Timber)
Application
Arches
Author
Rammer, Douglas
de Melo Moura, Jorge
Ross, Robert
Organization
Structures Congress
Publisher
American Society of Civil Engineers
Year of Publication
2014
Country of Publication
United States
Format
Conference Paper
Material
Glulam (Glue-Laminated Timber)
Application
Arches
Topic
Serviceability
Keywords
Uniform Loading
Deformation
Language
English
Conference
Structures Congress 2014
Research Status
Complete
Notes
April 3-5, 2014, Boston, Massachusetts, United States
Summary
The second glued-laminated structure built in the United States was constructed at the USDA Forest Products Laboratory (FPL) in 1934 to demonstrate the performance of wooden arch buildings. After 75 years of use the structure was decommissioned in 2010. Shortly after construction, researchers structurally evaluated the gluedlaminated arch structure for uniform loading on the center arch. This structural system evaluation was added to the existing laboratory work on glued-laminated arches to develop the foundation on which the current glued-laminated arch design criteria is based. After 75 years of service and decommisioning, recovered arches were tested in the laboratory to evaluate the loss of structural performance. Loss of structural performance was evaluated by comparing original and current deformation. Based on a preliminary visual and structural assessment, the degradation of structural performance was minimal in the arches, except for two arch that were affected by the building fire.
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