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木ダボによる大断面円柱材の縦継ぎ(第1報)被着材含水率の木ダボ引抜耐力への影響

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Title: 木ダボによる大断面円柱材の縦継ぎ(第1報)被着材含水率の木ダボ引抜耐力への影響
Other Titles: End joint with glued-in hardwood dowels in large section column timber I. Effect of moisture contents on withdrawal properties
Authors: 藤田, 誠1 Browse this author
小泉, 章夫2 Browse this author →KAKEN DB
佐々木, 貴信3 Browse this author
飯島, 泰男4 Browse this author
樋口, 聡5 Browse this author
原田, 浩司6 Browse this author
Authors(alt): Fujita, Makoto1
Koizumi, Akio2
Sasaki, Takanobu3
Iijima, Yasuo4
Higuchi, Satoshi5
Harada, Koji6
Keywords: 引抜型接合具
大断面製材品
スギ
Issue Date: 1-Apr-2004
Publisher: 日本木材加工技術協会
Journal Title: 木材工業
Volume: 59
Issue: 4
Start Page: 166
End Page: 169
Abstract: The application of glued-in hardwood dowels to end-jointing of large section column timbers was considered. In this study, pull-out tests were made using sugi (Cryptomeria japonica) and 12mm diameter dowels (Acer saccharum) to investgate the effect of moisture content (MC) of the wood member on withdrawal properties. Withdrawal strengths and slip modulus by pull-out tests tended to decrease as MC increased. The gradient of regression line between the moisture content of the wood member and withdrawal strengths and slip modulus for double dowels smaller than that for single dowels. Although differences between average withdrawal strengths MC≦20% and average withdrawal strengths of MC >20% for single dowels were significant, the results for double dowels were not significant.
木ダボを引抜抵抗型の接合具として利用した構造材の縦継ぎに関する一連の研究がなされている。本研究の目的は、引抜型接合具としての木ダボを大断面製材品に適用することである。断面が大きい製材品を木ダボにより縦継ぎする場合、乾燥工程において生じる水分傾斜の存在が危惧されることから、被着材側の因子として含水率をとりあげ、木ダボの引抜性能におよぼす影響を実験的に検討した。
Rights: 著作権は日本木材加工技術協会にある。利用は著作権の範囲内に限られる。
Type: article
URI: http://hdl.handle.net/2115/68156
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 小泉 章夫

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