In-plane shear properties of the wood-based sandwich panel as a small shear wall evaluated by the shear test method using tie-rods |
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| Authors: | Tamami Kawasaki Kweonhwan Hwang Kohei Komatsu Shuichi Kawai |
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| Institution: | (1) Wood Research Institute, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan Tel. +81-774-38-3677; Fax +81-774-38-3678 e-mail: m54247@sakura.kudpc.kyoto-u.ac.jp, JP |
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| Abstract: | The fundamental in-plane shear properties were investigated for the wood-based sandwich panel of plywood-overlaid low-density
fiberboard (SW) manufactured at a pilot scale to develop it as a shear wall. The shear test method using tie-rods standardized
for shear walls was applied to SW with dimensions of 260 mm square and 96 mm thick as a small shear wall and to plywood (PW)
and thick low-density fiberboard (FB). The shear modulus and shear strength of PW, FB, and SW were determined. To measure
the shear deformation angle, a displacement meter and strain-gauge were used. The shear moduli of PW (0.68 g/cm3) and FB (0.25–0.35 g/cm3) were 460 and 21–58 MPa/rad, respectively. The shear modulus of SW as a composite was analyzed. Some experimental models
of SW were proposed (i.e., rigid-α, rigid-β, flexible, and semirigid models). The shear modulus of SW (0.35–0.40 g/cm3) evaluated based on the rigid-α and semirigid models were 73–89 and 109–125 MPa/rad, respectively. The theoretical shear modulus of SW was calculated to
be 110–129 MPa/rad.
Received: May 9, 2001 / Accepted: June 26, 2002
RID="*"
ID="*" Part of this report was presented at the 50th Annual Meeting of the Japan Wood Research Society, Kyoto, Japan, April
2000; and the 5th Pacific Rim Bio-Based Composite Symposium, Canberra, Australia, December 2000
Acknowledgments The authors express our deep gratitude to Mr. Noritoshi Sawada (Hokushin Co.), Dr. Wong Cheng, and their cooperative members
for their expert technical support for the preparation of manufacturing the thick fiberboard and sandwich panel. We are grateful
also to Drs. Min Zhang, Kenji Umemura, Wong Ee Ding, and Guangping Han for their great help and advice in manufacturing the
thick panels. The authors are grateful to Hokushin Co. for the fiber and resin and to Ishinomaki Gouhan Co. for the plywood.
We thank Mr. Makoto Nakatani for his expert assistance when preparing the specimens for the shear test. Funding provided by
the Research Fellowship of the Japan Society for the Promotion of Science for Young Scientists as a JSPS Research Fellow is
also gratefully acknowledged. |
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| Keywords: | Shear property Sandwich panel Composite Fiberboard Plywood |
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