ABSTRACT

Based on the available literature, the interface bond between FRCM and masonry substrate was statistically analysed. First, the interfacial failure modes were classified, and their distribution was analysed. Second, the interface fracture energy between the FRCM and masonry substrate was further calculated considering Mode-II interfacial fractures, the influential factors were analyzed, and the calculation formula of the fracture energy was obtained. Finally, the characteristic values of the ultimate bond load were determined via a statistical method. The research results have guiding significance in the analysis of the mechanical properties of FRCM-strengthened masonry structures and improvement in the corresponding design methods.

摘要

根据现有文献，对FRCM与砌体基材之间的界面结合进行了统计分析。首先，对界面失效模式进行分类，并分析其分布。其次，考虑II型界面裂缝，进一步计算了FRCM与砌体基体的界面断裂能，分析了影响因素，得到了断裂能的计算公式。最后，通过统计方法确定极限粘结载荷的特征值。研究结果对FRCM加固砌体结构力学性能分析及相应设计方法的改进具有指导意义。