頁籤選單縮合
題 名 | 臺灣傳統建築直榫木接頭力學行為研究=Studies of the Mechanical Behavior of Tenon and Mortise Wood Joints Used in Traditional Taiwanese Construction |
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作 者 | 李佳韋; 林金祿; 林敏郎; 黃世建; 蔡明哲; | 書刊名 | 臺灣林業科學 |
卷 期 | 22:2 2007.06[民96.06] |
頁 次 | 頁125-134 |
分類號 | 441.1 |
關鍵詞 | 大木結構; 榫卯; 最大彎矩; 旋轉勁度; Wood structure; Tenon and mortise; Maximum moment; Rotational stiffness; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究針對臺灣傳統大木結構的金柱與通梁的實尺寸榫卯接合進行反覆載重與單向載重側推實驗。研究中將最大彎矩Mmax與旋轉勁度K值定義為榫頭的強度,實驗結果發現穿榫 (CT) 榫長較長,抵抗彎矩與旋轉勁度較大,當綜合比較直榫 (CH)、CT與踏步燕尾榫 (CS) 的平均最大彎矩強度與旋轉勁度時皆為CT > CS+ (踏步燕尾榫之抗力方向) > CH > CS- (踏步燕尾榫中所多出長方體木塊之抗力方向)。CT的平均最大彎矩為CH的4.5倍,而旋轉勁度為CH的4.2倍(兩點斜率法求得之K值);而設計能防止水平拔出的CS,其抵抗彎矩效能也比同榫長的單向CH大,而最大彎矩Mmax大者旋轉勁度K值亦大。 |
英文摘要 | The purpose of this study was to investigate the mechanical behavior of tenon and mortise wood joints used in traditional Taiwanese wood structures by cyclic loading and lateral loading. The maximum moment (Mmax) and rotational stiffness (K) were defined as the joint strength. Experimental results revealed that the Mmax and K values of the “through tenon” (CT) were greater than those of the “straight tenon” (CH) and “stepped dovetail tenon” (CS), mainly because of the longer tenon length of the CT. The average Mmax and K values among the various joints showed the following trend: CT > CS+ (direction of the joint against the external force) > CH > CS- (direction of the wood block in the joint against the external force). In comparisons of the average Mmax and K values of CH specimens, the average Mmax value for CT specimens was 350% higher, whereas the average K value was 320% higher (calculated by the 2-point-slope method). The strength of the CS which is the common joint resisting lateral forces was stronger than that of the CH with the same tenon length. It was also found that the K value increased with an increase in Mmax. |
本系統中英文摘要資訊取自各篇刊載內容。