轴心受拉锚固结构锚板刚度研究  

Study on Stiffness of Anchor Plate for Post-installed Fastenings Under Axial Tension

作　　者：龙帮云[1,2,3] 张恒 王宪雄[4] 谷文汉 刘志强 

机构地区：[1]中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏徐州221008 [2]中国矿业大学江苏省土木工程环境灾变与结构可靠性重点实验室,江苏徐州221008 [3]江苏建筑节能与建造技术协同创新中心,江苏徐州221116 [4]武汉和创建筑工程设计有限公司,湖北武汉430000

出　　处：《徐州工程学院学报（自然科学版）》2017年第3期73-77,共5页Journal of Xuzhou Institute of Technology(Natural Sciences Edition)

基　　金：国家自然科学基金项目(51374199);中央高校基本科研业务费专项资金资助项目(2015XKMS011)

摘　　要：为探究后锚固群锚试件在轴心受拉作用下锚板刚性性能的发挥,设计并制作了6个不同锚板厚度与锚栓排列方式的后锚固试件,并通过静力拉拔试验研究了试件的破坏形态、极限承载力、锚板应变和位移.研究结果表明:锚栓为线性排列方式时,增加锚板厚度可有效提高锚板极限承载力;轴心对称分布时,锚板厚度取20mm时承载力最优;相同锚板厚度下轴心对称排列比线性排列的极限承载力高出65%左右;增加锚板厚度可抑制锚板变形,且采用轴心对称排列锚板变形更小.In order to investigate the properties of the rigidity of anchor plate with post-installed fastenings under axial tension,6 anchor plates with different thickness and anchor arrangement were designed as post-installed fastenings in concrete structure. The failure mode, ultimate bearing capacity, strain and deformation of anchor plate of specimens were observed and recorded during the test. The results indicated that increasing anchor plate thickness can effectively improve the ultimate bearing capacity of anchor plate, when the anchor bolts are linearly arranged;when the anchor bolts are axially and symmetrically arranged, ultimate bearing capacity of 20 mm anchor plate is optimal. For the same anchor plate thickness, ultimate bearing capacity of anchor plate with axial symmetrical arrangement is 65% higher than that of the linear arrangement. Increasing the thickness can inhibit the anchor plate deformation; deformation of axial symmetrical arrangement is smaller than linear arrangement.

关 键 词：后锚固 轴心受拉 锚板刚性 锚板厚度 

分 类 号：TU528.7[建筑科学—建筑技术科学]