不同覆面材料SIP墙体抗剪性能研究  

Shearing behavior of SIP wall faced with different materials

作　　者：王雪花[1,2] 方露[1] 吴智慧[1] 王晓欢[3] 宋莎莎[4] 费本华 

机构地区：[1]南京林业大学,南京210037 [2]国际竹藤中心,北京100102 [3]中国林业科学研究院林业新技术研究所,北京100091 [4]北京林业大学,北京100083

出　　处：《应用力学学报》2017年第2期354-359,共6页Chinese Journal of Applied Mechanics

基　　金：江苏高校优势学科建设工程资助项目(PAPD);南京林业大学高层次人才科研启动基金(GXL1023)

摘　　要：以木质OSB、重组竹、竹帘胶合板为SIP墙体的覆面材料,测试这三种材料覆面SIP墙体在单向及往复载荷作用下的抗剪性能。结果表明:往复载荷作用时的极限载荷、抗剪强度、峰值位移、极限位移比单向载荷作用时下降,但弹性阶段刚度有所提高。往复载荷作用时,在逐级加载过程中墙体刚度逐渐退化;三种材料覆面SIP墙体,抗剪强度分别为16.5k N·m^(-1)、18.4k N·m^(-1)、17.4k N·m^(-1),弹性阶段刚度依次为1476.4k N·m^(-1)、1140.7k N·m^(-1)、934.6k N·m^(-1),耗能分别为5595.4J·m^(-1)、5488.7J·m^(-1)、5450.2J·m~(^(-1));随加载次数及位移增大,墙体内部损伤累积,耗能能力减小。SIP wall is faced with wooden OSB,recombinant bamboo,bamboo curtain plywood,and shearing behavior of SIP walls under single and cyclic loading are tested.Results obtained show that limit load,shearing strength and peak displacement under cyclic loading are lower than those under single loading,while elastic stiffness are somewhat higher.Stiffness gets degeneration during stepwise cyclic loading process.Shearing strength of the wall shelled with wooden OSB,recombinant bamboo,bamboo curtain plywood is 16.5k N·m^(-1),18.4k N·m^(-1),and 17.4k N·m^(-1),separately.Elastic stiffness is 1476.4k N·m^(-1),1140.7k N·m^(-1),and 934.6k N·m^(-1) in order.Energy consumption is 5595.4J·m^(-1),5488.7J·m^(-1),and 5450.2J·m^(-1),separately.With the increase of loading times and displacement,damage accumulated and energy dissipation capacity of the wall decrease correspondingly.

关 键 词：SIP墙体 木质OSB 重组竹 竹帘胶合板 抗剪性能 

分 类 号：TU531[建筑科学—建筑技术科学]