小径木组合墙骨剪力墙力学性能试验研究  

Experimental study on mechanical performance of small-diameter wood composite wall studs shear walls

作　　者：刘立磊 牛爽[1,2] 胡津阳 祝恩淳[1,2] LIU Lilei;NIU Shuang;HU Jinyang;ZHU Enchun(Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education,Harbin Institute of Technology,Harbin 150090,China;School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China)

机构地区：[1]哈尔滨工业大学结构工程灾变与控制教育部重点实验室,哈尔滨150090 [2]哈尔滨工业大学土木工程学院,哈尔滨150090

出　　处：《建筑结构》2022年第3期134-141,148,共9页Building Structure

基　　金：国家重点研发计划项目资助(2016YFC0701505)。

摘　　要：提出一种机械连接小径木组合墙骨,并通过试验验证其用于轻型木框架剪力墙的可行性。进行了24片东北落叶松小径木组合墙骨剪力墙的抗侧性能试验,包括12片单调加载试验及12片低周往复加载试验,考查了小径木组合墙骨剪力墙的破坏模式、抗剪强度、割线刚度、极限位移、延性、抗力衰减系数等指标,并探究端墙骨及覆面板用材种类对墙体性能的影响。试验发现:小径木组合墙骨可部分替代规格材用于木骨架剪力墙中,并获得总体上相近的抗侧承载能力;端墙骨选用规格材或小径木组合墙骨所致整体性能差异较小;覆面板材料选取及布置方式对抗侧性能影响显著,双侧布置OSB板墙体承载力显著高于一侧布置石膏板、一侧布置OSB板墙体以及单侧布置OSB板墙体。A small-diameter wood composite wall studs shear wall with mechanical connection was explored,and investigated through experiments to verify the feasibility of its use in light wood-frame shear walls.Lateral resistance performance 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,shear strength,secant stiffness,ultimate displacement,ductility,resistance attenuation coefficient and other indicators of small-diameter wood composite wall studs shear walls were examined,and the influence of the types of end wall studs and cladding panels on the wall performance was explored.The experiment revealed that:small-diameter wood composite wall studs can be used in wood-frame shear walls as part of the standard timber,and a similar lateral resistance bearing capacity can be obtained in general;the overall performance difference caused by the selection of standard timber or small-diameter wood composite wall studs for the end studs is small;the selection and layout of the cladding panel material has a significant impact on the lateral resistance performance,the bearing capacity of the double-sided OSB board wall is significantly higher than that of the one-sided gypsum board,the one-sided OSB board wall and the single-sided OSB board wall.

关 键 词：轻型木结构 小径木组合墙骨 剪力墙 抗侧性能 

分 类 号：TU759.4[建筑科学—建筑技术科学]