网片材料增强土坯砖墙抗震性能有限元分析研究  

Finite element analysis of seismic behavior of earth brick wall reinforced by mesh material

作　　者：伊力夏提·阿不都西库尔 沙吾列提·拜开依[1,2] 张耀文 郭星辰 Erxat·ABDUXKUR;Sawlet·BEKEY;Zhang Yao-wen;Guo Xing-chen(College of Architecture and Engineer,Xinjiang University,Urumqi 830047,China;Xinjiang Key Lab of Building Structure and Earthquake Resistance,Urumqi 830047,China;China Construction Seventh Engineering Bureau Co.Ltd,Zhengzhou 450000,China)

机构地区：[1]新疆大学建筑工程学院,新疆乌鲁木齐830047 [2]新疆建筑结构与抗震重点实验室,新疆乌鲁木齐830047 [3]中国建筑第七工程局有限公司,河南郑州450000

出　　处：《工程抗震与加固改造》2023年第1期105-114,共10页Earthquake Resistant Engineering and Retrofitting

基　　金：广东省地震工程与应用技术重点实验室开放基金项目(2017B030314068)。

摘　　要：为了确定一种适用于施工的经济性土坯砖墙增强方案,通过有限元软件ABAQUS,分别建模不同配置方式和不同配纤率的土坯砖墙增强模型,对试件施加竖向荷载和低周反复水平荷载,研究土坯砖墙体在地震作用下的破坏过程、破坏形态、滞回曲线和骨架曲线的特征以及墙体的水平承载力和变形能力等。研究表明网片材料的加入使得土坯砖墙体内部应力重分布,弥补了土坯砖抗拉强度低的特点;无论配置方式变换还是配纤率变换,土坯砖墙的破坏模式依旧属于剪切破坏;通过量化网片复材增强土坯砖墙抗震性能,其最佳配纤层为间隔一皮砖配置,配纤率为0.338%。In order to determine an economical reinforcement scheme for earth-brick wall suitable for construction,the finite element software ABAQUS is used to established the earth-brick wall reinforcement models with different configurations and reinforcement ratios.The vertical load and low cyclic horizontal load are applied to the specimens.The failure process,failure mode,characteristics of hysteresis curve and skeleton curve,horizontal bearing capacity and deformation capacity of earthen brick wall under earthquake load are studied.The results show that the addition of mesh material redistributes the internal stress of the brick wall,which makes up for the low tensile strength of the brick.The failure mode of soil-brick wall still belongs to shear failure regardless of the change of configuration mode or fiber ratio.By quantifying the seismic performance of earth brick wall reinforced by mesh cladding,the optimal fiber layer is one leather brick with a fiber ratio of 0.338%.

关 键 词：有限元方法 配筋率 土砌墙增强 玻璃纤维增强复合材料(GFRP) 低周期往复加载 

分 类 号：TU361[建筑科学—结构工程]