Cyclic Performance of Glued Laminated Guadua Bamboo-Sheathed Shear Walls
Publication: Journal of Structural Engineering
Volume 139, Issue 11
Abstract
This paper presents a study aimed to determine the cyclic performance of wood-frame shear walls sheathed with glued laminated Guadua bamboo (GLG) panels as a first step to evaluate their potential application. GLG-sheathed walls having 2:1 and 1:1 aspect ratios and three different sheathing nail spacing were tested under cyclic conditions. Parameters, such as peak shear strength, shear modulus, displacement ductility demand, and energy dissipation of the walls, were examined. Values for peak shear strength were then compared with those of walls sheathed with wood or wood-based panels. The wall aspect ratio was found to be a parameter with lesser impact than nail spacing. It was also found that the reduction in nail spacing increases to some extent the strength, stiffness, and energy dissipation, but lowers the ductility of the wall. The peak cyclic shear strength of shear walls sheathed with GLG panels was found to be within the shear strength reported for wood or wood-based panels and the tested oriented strand board and plywood control specimens. Higher specific gravity of GLG panels compared with wood-based panels has a positive effect in avoiding tearing and pull-through failures of the panel and leads to higher energy dissipation of the wall. Based on test results, GLG panels could be a suitable structural replacement of wood or wood-based panels used in wood-frame construction.
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Acknowledgments
The authors of this paper gratefully acknowledge funding support received from the Colombian Ministry of Agriculture and Rural Development through grant no. 030-2007M3307-920-07. ARAUCO and Simpson Strong-Tie Inc., through its representative in Colombia, DIAMANTBEC, are also thanked for donating the framing lumber and hold downs, respectively. Gratitude is also extended to all members of the Structural Models Laboratory, CIMOC at the Universidad de los Andes-Colombia and to Hernan Montoya, S.E. of ARCON S.E., Inc. for the review of this paper.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 139 • Issue 11 • November 2013
Pages: 2028 - 2037
Copyright
© 2013 American Society of Civil Engineers.
History
Received: May 23, 2012
Accepted: Oct 12, 2012
Published online: Oct 13, 2012
Published in print: Nov 1, 2013
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