- 摘 要
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(1 南京林業(yè)大學木結(jié)構(gòu)建筑系, 南京 210037;2 蘇州皇家整體住宅系統(tǒng)股份有限公司, 蘇州 215105)
[摘要]選用木結(jié)構(gòu)建筑實際工程中的環(huán)紋釘、進口規(guī)格材、定向結(jié)構(gòu)刨花板以及國產(chǎn)楊木結(jié)構(gòu)膠合板,分別制作四組不同覆面材料、不同接觸面積的木結(jié)構(gòu)剪力墻釘連接單剪試件,采用單調(diào)加載方式進行試驗研究。試驗結(jié)果表明:同一材料條件下,受力面積越大,釘節(jié)點初期剛度越大、試件變形能力越強,但釘節(jié)點的承載力減??;在同一受力面積、不同覆面材料條件下,結(jié)構(gòu)膠合板的釘節(jié)點承載力比定向結(jié)構(gòu)刨花板的釘節(jié)點承載力大,而初期剛度和延性均較小;定向結(jié)構(gòu)刨花板覆面試件的釘節(jié)點剛度退化比結(jié)構(gòu)膠合板要大。
[關(guān)鍵詞]木結(jié)構(gòu); 釘節(jié)點; 承載性能; 初期剛度
中圖分類號:TU366.2 文獻標識碼:A 文章編號:1002-848X(2014)09-0093-04
Experimental study of nail joints of shear walls under different cladding conditions in wood frame structures
Que Zeli1, Yang Ling1, Zhao Dan1, Wang Yongbing2, Wu Yong2
(1 Department of Wooden Structure Construction Engineering, Nanjing Forestry University, Nanjing 210037, China; 2 Suzhou Crownhomes Co., Ltd., Suzhou 215105, China)
Abstract: Using ring shank nails, lumber of imports, OSB as well as domestic poplar structural plywood, four kinds of specimens of panel-to-lumber nailed joints were made with different cladding materials, different contact surfaces. They were tested under monotonic loading. Results show that under the same material conditions, the greater the force area, the stiffness of nail and deformation capacity would be higher but the bearing capacity would be lower. Under the same force area but different cladding materials, the bearing capacity of structural plywood would be higher than that of OSB. But the stiffness and joint ductility of structural plywood were lower than that of OSB. Meanwhile the rigidity degeneration of OSB was higher than that of structural plywood.
Keywords: wood structure; nail joint; loading performance; initial stiffness
*江蘇高校優(yōu)勢學科建設(shè)工程資助項目(PAPD201104),南京林業(yè)大學引進高層次人材基金(163020031)。
作者簡介:闕澤利,博士,副教授,Email:zelique.nfu@gmail.com。
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