论文部分内容阅读
为研究钢绞线网聚合物砂浆加固砖墙的抗震性能,针对这一加固结构的非线性分析方法,在钢绞线网聚合物砂浆加固砖墙的抗震性能试验基础上,对钢绞线网聚合物砂浆加固砖砌体的界面剥离行为进行专题试验研究。试验结果表明,加固后墙体有良好的延性和抗震性能,但加固层存在剥离现象,使得钢绞线应力发挥小,远低于其极限强度。在试验研究的基础上,提出相应的静力非线性分析方法,考虑界面剥离影响后,采用此方法,可以获得具有下降段的荷载-位移曲线,总体趋势与试验符合较好。
In order to study the seismic performance of reinforced brick masonry with steel mesh polymer mortar, aiming at the nonlinear analysis method of this reinforced structure, on the basis of the seismic performance test of reinforced concrete masonry with steel mesh, Polymer mortar reinforced brick masonry interface peel behavior of the experimental study. The test results show that the reinforced walls have good ductility and seismic performance, but the peel-off phenomenon exists in the reinforcement layer, which makes the stress of the strand small and far lower than the ultimate strength. Based on the experimental study, a corresponding static nonlinear analysis method is proposed. After considering the effect of interface debonding, the load-displacement curve with the descending section can be obtained by this method. The overall trend is in good agreement with the experiment.