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題名 | Study of the Shear Performance of Glulam Joints Using Mechanical Connectors and Self-Tapping Screws=集成材以金屬連結件及自攻螺絲扣件接合之剪斷性能 |
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作者 | 葉民權; 林玉麗; 黃健評; | 書刊名 | 臺灣林業科學 |
卷期 | 31:2 2016.06[民105.06] |
頁次 | 頁119-133 |
分類號 | 436.51 |
關鍵詞 | 接合強度; 集成材; 自攻螺絲; 柳杉; Joint strength; Glulam; Self-tapping screw; Japanese cedar; |
語文 | 英文(English) |
中文摘要 | 本研究開發鋼製及鋁製之兩種連結件,並應用自攻螺絲為扣件於柳杉集成材之接合,在剪斷試驗 中採用H型結構,以不同數量之自攻螺絲組合成梁柱接合,用以探討其強度特性。在π型連結件方面, 採用9或12支自攻螺絲接合之最大剪斷載重容量較6支試驗條件略有增進,以鳩尾型連結件組成之接合 則較π型連結件接合有較大之初始剛性及延展性,但有較低之最大載重容量及降伏強度,以鋁製鳩尾型 連結件組成之接合較鋼製鳩尾型連結件有其3倍之能量散逸。以強度極限法所推導之容許剪斷容量值, 低於以降伏強度準則所決定之數值,約為平均最大剪斷載重值之2.85~32.5%,以π型接合之容許剪斷載 重容量則高於鳩尾型接合42.4%。 |
英文摘要 | Two types of mechanical connectors, of either steel or aluminum, were developed with the application of self-tapping screws for Japanese cedar glulam member connections. The characteristic strength properties of a beam-column joint assembled using different numbers of self-tapping screws in an H-type structure were studied using a shear test. For the π-type connector, connections that used 9 and 12 self-tapping screws showed a slight improvement in the maximum shear loading capacity over the use of 6 screws. Connections assembled using a dovetail-type connector exhibited greater initial stiffness and ductility than the π-type connector, but had a lower maximum load capacity and yield strength. Joints assembled using the aluminum dovetail-type connectors dissipated energy 3 times more effectively than those assembled using steel dovetail-type connectors. The derived allowable shear capacity values for a connection, obtained from the strength limit, were lower than values derived using yield strength criteria and were about 28.5~32.5% of the average maximum shear load. The π-type connection showed a 42.4% higher allowable shear load capacity than that of dovetail-type connections. |
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