- 摘 要
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(1 哈爾濱工業(yè)大學結(jié)構(gòu)工程災變與控制教育部重點實驗室, 哈爾濱 150090;2 哈爾濱工業(yè)大學土木工程學院, 哈爾濱 150090)
摘要: 提出一種機械連接小徑木組合墻骨,并通過試驗驗證其用于輕型木框架剪力墻的可行性. 進行了 24 片東北落葉松小徑木組合墻骨剪力墻的抗側(cè)性能試驗,包括 12 片單調(diào)加載試驗及 12 片低周往復加載試驗,考查了小徑木組合墻骨剪力墻的破壞模式、抗剪強度、割線剛度、極限位移、延性、抗力衰減系數(shù)等指標,并探究端墻骨及覆面板用材種類對墻體性能的影響. 試驗發(fā)現(xiàn):小徑木組合墻骨可部分替代規(guī)格材用于木骨架剪力墻中,并獲得總體上相近的抗側(cè)承載能力;端墻骨選用規(guī)格材或小徑木組合墻骨所致整體性能差異較小;覆面板材料選取及布置方式對抗側(cè)性能影響顯著,雙側(cè)布置 OSB 板墻體承載力顯著高于一側(cè)布置石膏板、一側(cè)布置 OSB 板墻體以及單側(cè)布置 OSB 板墻體.
關(guān)鍵詞: 輕型木結(jié)構(gòu); 小徑木組合墻骨; 剪力墻; 抗側(cè)性能
中圖分類號:TU759. 4 文獻標志碼:A 文章編號:1002-848X(2022)03-0134-08
DOI:10. 19701 / j. jzjg. 20200336
Experimental study on mechanical performance of small-diameter wood composite wall studs shear walls
LIU Lilei1,2, NIU Shuang1,2, HU Jinyang1,2, ZHU Enchun1,2
(1 Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education, Harbin Institute of Technology,Harbin 150090, China; 2 School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China)
Abstract: A small-diameter wood composite wall studs shear wall with mechanical connection was explored, andinvestigated through experiments to verify the feasibility of its use in light wood-frame shear walls. Lateral resistanceperformance test of 24 pieces were conducted on Northeast Larch small-diameter wood composite wall studs shear walls,including 12-piece of monotonic loading test and 12-piece low-cycle reciprocating load test. The failure mode, shearstrength, secant stiffness, ultimate displacement, ductility, resistance attenuation coefficient and other indicators ofsmall-diameter wood composite wall studs shear walls were examined, and the influence of the types of end wall studs andcladding panels on the wall performance was explored. The experiment revealed that: small-diameter wood composite wallstuds can be used in wood-frame shear walls as part of the standard timber, and a similar lateral resistance bearing capacitycan be obtained in general; the overall performance difference caused by the selection of standard timber or small-diameterwood composite wall studs for the end studs is small; the selection and layout of the cladding panel material has asignificant impact on the lateral resistance performance, the bearing capacity of the double-sided OSB board wall issignificantly higher than that of the one-sided gypsum board, the one-sided OSB board wall and the single-sided OSB boardwall.
Keywords:light wood structure; small-diameter wood composite wall stud; shear wall; lateral resistance performance
∗國家重點研發(fā)計劃項目資助(2016YFC0701505) .
第一作者:劉立磊,博士研究生,主要從事木結(jié)構(gòu)研究,Email:liulilei. hit@ foxmail. com.
[引用本文] 劉立磊,牛爽,胡津陽,等. 小徑木組合墻骨剪力墻力學性能試驗研究[ J] . 建筑結(jié)構(gòu),2022,52( 3) :134-141,148. LIU Lilei,NIU Shuang,HU Jinyang,et al. Experimental study on mechanical performance of small-diameterwood composite wall studs shear walls[ J] . Building Structure,2022,52(3) :134-141,148.
