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Bearing properties of Shorea obtusa beneath a laterally loaded bolt

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Title: Bearing properties of Shorea obtusa beneath a laterally loaded bolt
Authors: Awaludin, Ali Browse this author
Smittakorn, Watanachai Browse this author
Hirai, Takuro Browse this author
Hayashikawa, Toshiro Browse this author
Keywords: Bearing strength
Initial stiffness
Loading angle to the grain
Shorea obtusa
Issue Date: Jun-2007
Publisher: Springer
Journal Title: Journal of Wood Science
Volume: 53
Issue: 3
Start Page: 204
End Page: 210
Publisher DOI: 10.1007/s10086-006-0842-z
Abstract: Empirical equations to determine the bearing strength have been proposed by many researchers and design standards. Because these equations have been developed mainly based on test results of softwood species, it is a matter of great importance (to ASEAN structural engineers) to verify the applicability of these equations for tropical hardwood species, which are commonly used in many ASEAN countries. In this study, wood specimens of Shorea obtusa (a tropical hardwood species) were used and the bearing test under full-hole confi guration was carried out for fi ve different loading angles to the grain. The bearing stress-embedment curve obtained from the test was approximated by a linear elastic-plastic diagram indicating the initial and fi nal stiffness of the curve. Testing showed that the average bearing strength parallel to the grain was 7.25% lower than the prediction given in Eurocode 5. The bearing strength perpendicular to the grain evaluated based on bearing load at initial cracking was substantially different from any predictions given by previous studies or design standards. It was also found that the bearing strength and initial stiffness from the bearing stress-embedment curve for loading at intermediate angles to the grain could be satisfactorily predicted with Hankinson’s formula.
Rights: The original publication is available at
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: Awaludin Ali

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