斜向粘贴纤维片材加固砌体墙的抗剪承载力分析

Analysis on shear bearing capacity of masonry walls reinforced by oblique FRP

在收集多个斜向粘贴纤维片材加固砌体墙的试验数据和抗剪承载力计算公式的基础上,对比分析了这些计算公式所考虑的参数,并将斜向粘贴纤维片材加固砌体墙的抗剪承载力计算公式计算值与试验实测值进行对比,结果表明这些公式计算值不能与所有试验结果较好吻合。在综合考虑纤维片材条带数、墙体高宽比、材料强度、贴布率等因素的基础上,通过统计分析提出了新的纤维片材加固砌体墙的抗剪承载力计算公式及纤维片材参与工作系数。经过对比分析可知,本文公式计算结果与收集的试验数据吻合较好。

Based on the collected test data and the shear bearing capacity formulas of masonry walls reinforced by oblique FRP, parameters in the formulas were compared. The calculated value and measured value of shear bearing capacity of masonry walls reirforced by oblique FRP were contrasted, results show that the values calculated are not always in good agreement with the test results. Considering the number of FRP strips, wall height-width ratio, strength of materials and reinforcement ratio, a new formula for shear bearing capacity and influencing coefficient of FRP were proposed. The suggested semi-empirical formula agrees well with the collected test data.