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（北京林業(yè)大學(xué)材料科學(xué)與技術(shù)學(xué)院， 北京 100083）

［摘要］選用SPF規(guī)格材（云杉松木冷杉）與不同厚度的定向刨花板，依據(jù)荷載垂直或平行于木材紋理方向制作60個夾板剪力墻釘連接試件以及20個標(biāo)準(zhǔn)剪力墻釘連接試件，采用美國ASTM D 176112試驗標(biāo)準(zhǔn)進(jìn)行單調(diào)加載試驗。結(jié)果表明：采用相同厚度的定向刨花板制作的夾板剪力墻釘節(jié)點(diǎn)承載力比標(biāo)準(zhǔn)剪力墻釘節(jié)點(diǎn)承載力大；隨著夾板厚度的增加，夾板剪力墻釘節(jié)點(diǎn)承載力、剛度、延性系數(shù)提高；相同厚度OSB制作的順紋釘節(jié)點(diǎn)剛度大于橫紋釘節(jié)點(diǎn)；12mm厚的定向刨花板比較適合制作夾板剪力墻。

［關(guān)鍵詞］輕型木結(jié)構(gòu)； 夾板剪力墻； 釘節(jié)點(diǎn)； 單調(diào)加載

中圖分類號：TU366.2     文獻(xiàn)標(biāo)識碼：A     文章編號：1002-848X(2015)06-0054-04

Experimental research on MIDPLY shear wall nail joints of light wood structures

Dong Weibo, Gao Ying, Yu Zhiming, Yuan Tingge

 (College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, China)

Abstract:Sixty connection specimens of MIDPLY shear wall nail joints and twenty connection specimens of standard shear wall nail joints were made according to perpendiculartograin and the paralleltograin loads by using SPF dimension lumber (SprucePineFir) and OSB with different thickness. Monotonic loading tests were applied to the specimens based on ASTM D 176112. Test results show that the bearing capacity of MIDPLY shear wall nail joints is higher than that of standard shear wall nail joint with the same thickness of OSB. With the increase of  MIDPLY thickness, the bearing capacity, stiffness, ductility factor of MIDPLY shear wall nail joints are improved. With the same thickness of OSB, the stiffness of the paralleltograin nail joint is higher than that of perpendiculartograin joint. OSB with 12mm thickness is quite properly used for MIDPLY shear wall.

Keywords:light wood structure; MIDPLY shear wall; nail joint; monotonic load

*林業(yè)公益性行業(yè)科研專項低質(zhì)人工林木材家具制造關(guān)鍵技術(shù)研究與示范(201404502),北京市支持中央在京高校共建項目人工林速生材的結(jié)構(gòu)用集成材材性及應(yīng)用性能研究。

作者簡介：董偉博，碩士研究生，Email：dongweibo5@163.com。

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