FUNDAMENTAL STUDY ON STRENGTH BEHAVIOR OF WOODEN JOINT COMPOSED OF LUMBER OF SUGI DRIED WITH HIGH-TEMPERATURE

FUJINO Eiichi, TSUCHIMOTO Takahiro, TSUDA Chihiro

doi:10.3130/aijs.80.1579

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Other Title

高温乾燥処理したスギ製材を用いた接合部の強度性状に関する基礎的研究
高温乾燥処理したスギ製材を用いた接合部の強度性状に関する基礎的研究 : 長ホゾ込栓接合部を対象とした天然乾燥材と高温乾燥材の比較
コウオンカンソウショリシタスギセイザイオモチイタセツゴウブノキョウドセイジョウニカンスルキソテキケンキュウ : チョウホゾコミセンセツゴウブオタイショウトシタテンネンカンソウザイトコウオンカンソウザイノヒカク
－長ホゾ込栓接合部を対象とした天然乾燥材と高温乾燥材の比較－
Comparison between high-temperature drying and natural drying on Mortise-tenon-joint with lumber of Sugi

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Abstract

The purpose of this study is to clarify the influence on the strength of Mortise-tenon-joint in case lumber of Sugi (Cryptomeria japonica) is dried with high-temperature. There are two kinds of Sugi that we used for this experiment, one is high-temp. drying and the other is natural drying. In order to have less dispersion of wooden characteristic, matching on the material of experiment was implemented. The target joint of experiment is Mortise-tenon-joint. The experiment is composed of 3 tests, Tensile-test on Mortise-tenon-joint, Splitting-test on foundation and Moment-resisting-test on the joint.<br> From the result of the above 3 tests, compared with natural one, we found that the maximum load of high-temp. drying one decreased down to about 10 - 20%. The cause of the drop could be the inner crack due to high-temp. drying. Compared with natural drying, the load proportion of the maximum load, the result of 3 difference tests varied widely from 0.3 to 1.7. The average of the load proportion is from 0.85 to 0.9.

Journal

Journal of Structural and Construction Engineering (Transactions of AIJ)

Journal of Structural and Construction Engineering (Transactions of AIJ) 80 (716), 1579-1585, 2015

Architectural Institute of Japan

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