Experimental Investigation of Self-Centering Cross-Laminated Timber WallsSource: Journal of Structural Engineering:;2017:;Volume ( 143 ):;issue: 010Author:Ryan Ganey
,
Jeffrey Berman
,
Tugce Akbas
,
Sara Loftus
,
J. Daniel Dolan
,
Richard Sause
,
James Ricles
,
Shiling Pei
,
John van de Lindt
,
Hans-Erik Blomgren
DOI: 10.1061/(ASCE)ST.1943-541X.0001877Publisher: American Society of Civil Engineers
Abstract: Mass timber is an attractive and sustainable alternative structural engineering material to concrete and steel. Despite successful midrise to high-rise timber building projects around the world, such buildings have not been implemented in regions with high seismicity due in part to a lack of research and development on appropriate ductile seismic load resisting systems for heavy timber construction. This paper describes experiments conducted to develop a resilient lateral force-resisting wall system that combines cross-laminated timber (CLT) panels with vertical posttensioning (PT) to provide postevent recentering. Supplemental mild steel U-shaped flexural plate (UFPs) are intended to yield under cyclic loading while the PT and CLT components remain undamaged until large interstory drifts are experienced by the wall. The experiments were designed to explore various limit states for self-centering CLT (SC-CLT) walls, including their dependence on design variables and their effect on performance, and to investigate strength and stiffness degradation at large interstory drifts. It was found that the SC-CLT walls were able to recenter even after large drift cycles and the crushing of the CLT material was the governing limit state for most specimens. A hierarchy of desirable limit states was identified consisting of UFP yielding, CLT splitting, PT yielding, and CLT crushing.
|
Collections
Show full item record
contributor author | Ryan Ganey | |
contributor author | Jeffrey Berman | |
contributor author | Tugce Akbas | |
contributor author | Sara Loftus | |
contributor author | J. Daniel Dolan | |
contributor author | Richard Sause | |
contributor author | James Ricles | |
contributor author | Shiling Pei | |
contributor author | John van de Lindt | |
contributor author | Hans-Erik Blomgren | |
date accessioned | 2017-12-16T09:24:18Z | |
date available | 2017-12-16T09:24:18Z | |
date issued | 2017 | |
identifier other | %28ASCE%29ST.1943-541X.0001877.pdf | |
identifier uri | http://138.201.223.254:8080/yetl1/handle/yetl/4242537 | |
description abstract | Mass timber is an attractive and sustainable alternative structural engineering material to concrete and steel. Despite successful midrise to high-rise timber building projects around the world, such buildings have not been implemented in regions with high seismicity due in part to a lack of research and development on appropriate ductile seismic load resisting systems for heavy timber construction. This paper describes experiments conducted to develop a resilient lateral force-resisting wall system that combines cross-laminated timber (CLT) panels with vertical posttensioning (PT) to provide postevent recentering. Supplemental mild steel U-shaped flexural plate (UFPs) are intended to yield under cyclic loading while the PT and CLT components remain undamaged until large interstory drifts are experienced by the wall. The experiments were designed to explore various limit states for self-centering CLT (SC-CLT) walls, including their dependence on design variables and their effect on performance, and to investigate strength and stiffness degradation at large interstory drifts. It was found that the SC-CLT walls were able to recenter even after large drift cycles and the crushing of the CLT material was the governing limit state for most specimens. A hierarchy of desirable limit states was identified consisting of UFP yielding, CLT splitting, PT yielding, and CLT crushing. | |
publisher | American Society of Civil Engineers | |
title | Experimental Investigation of Self-Centering Cross-Laminated Timber Walls | |
type | Journal Paper | |
journal volume | 143 | |
journal issue | 10 | |
journal title | Journal of Structural Engineering | |
identifier doi | 10.1061/(ASCE)ST.1943-541X.0001877 | |
tree | Journal of Structural Engineering:;2017:;Volume ( 143 ):;issue: 010 | |
contenttype | Fulltext |