An Analytical Method for Predicting the Pullout Behavior of Embedded Planar Reinforcements with the Consideration of the Residual Interfacial Shear Strength
An Analytical Method for Predicting the Pullout Behavior of Embedded Planar Reinforcements with the Consideration of the Residual Interfacial Shear Strength
复制标题
考虑残余界面剪切强度的预测嵌入式平面钢筋拉拔行为的分析方法
DOI：
10.1007/s40891-020-00220-3
复制
发表时间：
2020-08-03
影响因子：
2.9
通讯作者：
Xu, Chao
中科院分区：
文献类型：
--
作者：
Ren, Fei-fan;Liu, Quan;Xu, Chao
本文提出了一种用于预测埋入的平面加筋在拉拔荷载作用下的力学行为的解析方法，该方法采用三线性剪切滑移模型来考虑加筋土界面处的残余抗剪强度。拔出行为的整个过程可分为五个连续阶段。在每个阶段，得到了界面剪应力和轴向应力沿配筋长度分布的闭合解以及抗拔阻力-位移关系。在此基础上，通过与三次拉拔试验结果的比较，对分析模型进行了验证。结果表明，该方法预测的抗拔阻力-位移曲线和内部位移分布与试验结果吻合较好。
In this paper, an analytical method was proposed to predict the mechanical behavior of embedded planar reinforcements subjected to pullout loads, and a tri-linear shear slip model was employed in the analytical method to consider the residual shear strength at the reinforcement-soil interface. The overall process of the pullout behavior was characterized by five sequential stages. At each stage, closed-form solutions for the distribution of interface shear stress and axial stress along the reinforcement length were obtained as well as the pullout resistance-displacement relationship. On this basis, the analytical model was validated through a comparison with the results of three pullout tests. In conclusion, the pullout resistance-displacement curves and internal displacement distributions predicted by the method agree well with those obtained by the tests.