The cooperation work performance of high-strength stainless steel wire mesh and ECC depends on the bonding property between each other,and the bondslip relationship model is a comprehensive reflection of the bond property. The uniaxial pull-out tests on 17 groups of 51 high-strength stainless steel strand reinforced ECC thin plate specimens were carried out,and the influence laws of spacing between transverse stainless steel strand,diameter of longitudinal stainless steel strand and relative anchorage length on the bond properties of steel strand in ECC were studied. The test results show that the bond failure can be transformed from brittle failure to ductile failure by adding the transverse steel strands. In addition,the bond-slip curve between the high strength stainless steel wire mesh and ECC can be divided into five stages,namely,ascending stage,slight descending stage,ductile strengthening stage,descending stage and residual stage. Based on the test results,the bond failure characteristics and bond-slip mechanism of steel strand mesh in ECC were analyzed. According to the existing bond-slip relationship model,the bond-slip relationship model between steel strand mesh and ECC is proposed,and the model parameters are analyzed. The proposed model and model parameter calculation formulas agree well with the experimental results,which proves that the bond-slip characteristic of the interface between steel strand mesh and ECC can be well reflected.
朱俊涛 张凯 王新玲 李可 李燚. 高强不锈钢绞线网与ECC黏结-滑移关系模型[J]. 土木工程学报, 2020, 53(4): 83-92.
Zhu Juntao Zhang Kai Wang Xinling Li Ke Li Yi. Bond-slip relational model between high-strength stainless steel wire mesh and ECC. 土木工程学报, 2020, 53(4): 83-92.