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頁籤選單縮合
題名 | Moment-resisting Performance of Residential Portal Frames Constructed with Self-tapping Screws=結構用自攻螺絲組合之集成材住宅門型剛架之彎矩抵抗性能 |
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作者姓名(中文) | 葉民權; 林玉麗; 黃健評; | 書刊名 | 臺灣林業科學 |
卷期 | 31:4 2016.12[民105.12] |
頁次 | 頁305-321 |
分類號 | 436.51 |
關鍵詞 | 門型剛架; 結構用集成材; 自攻螺絲; 柳杉; 側向力試驗; Portal frame; Glulam; Self-tapping screw; Japanese cedar; Racking test; |
語文 | 英文(English) |
中文摘要 | 本研究以柳杉造林木製造對稱異等級結構用集成材,並組合成箱型之門型剛架,用以探討在側向載重下之彎矩抵抗性能。門型剛架之接合採用鋁合金連接件及結構用自攻螺絲為扣件組合,且在接合部扣件之配置區分為三種形式作為組合條件。在水平剪斷試驗中,所施加之側向力區分為七循環階段進行。結果顯示,門型剛架在接合部以自攻螺絲方形配置所組合之條件,其最大側向載重容量、降伏載重、極限降伏載重、初始剛性均高於扣件分別採用單圓形及雙圓形配置之組合條件。同時,門型剛架在接合部以自攻螺絲方形配置所組合之條件,在循環載重階段所產生之能量散逸為1224.2 kN.mm,高於其他扣件配置之組合條件約20%。依據木質牆體之水平載重評估準則,箱型體之門型剛架容許剪斷強度是決定於牆體剪斷變形量在1/120弳度條件時之側向載重值,同時具有剪力牆乘數為4.4以上之性能,等效黏性阻尼值則為4%。 |
英文摘要 | Structural symmetric glulam members which were manufactured from Japanese cedar plantation timber were constructed into a box-type portal frame to investigate the moment-resisting performance of the frame when subjected to a lateral load. The joints of the frame were connected using aluminium connectors and self-tapping screw fasteners, and the placement of fasteners on the connection was arranged into 3 patterns. The loading protocol was applied laterally in 7 cyclic stages in the racking test. The results indicated that the maximum lateral load, yield lateral load, ultimate lateral yield load, and initial stiffness of the portal frame fastened using self-tapping screws and arranged in square placement were higher than those when using single-circular and doublecircular placements. The resultant dissipated energy obtained from the portal frame with the square pattern placement was 1224.2 kN•mm during the cyclic loading stages, which was higher than the other fastener arrangement by 20%. Based on the criteria for evaluating the horizontal force resistance of wooden wall structures, the allowable shear strength of the box-type portal frame was determined by the load corresponding to the shear deformation of 1/120 radian. The frames could provide a factor as a 4.4 of multiplier value when considered as a shear wall element. The equivalent viscous damping of the box-type portal frames assembled with self-tapping screws was around 4%. Key words: portal frame, glulam, self-tapping screw, Japanese cedar, racking test. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。