摘要
通过对8片砌体墙进行模拟地震作用下的预损伤试验和加固后的低周反复试验,研究玄武岩纤维(BFRP)加固砌体结构的抗震性能。分析了加固前后墙体的受力特点、滞回特性、耗能能力等变化规律,以及损伤对加固效果的影响,并根据试验结果提出了计算公式,计算值与试验值吻合良好。研究结果表明:玄武岩纤维加固可以有效延缓墙体裂缝发展,提高砖墙变形和承载能力,增加结构整体性,同时结构抗震性能得到显著改善,值得在灾后恢复重建阶段大力推广。
Based on the test of eight masonry walls under low cycle reversed loading,the seismic performances of strengthened unreinforced masonry walls by BFRP were analyzed from multi-angle,mainly including the hysteretic curve,energy dissipation capability and damage.Then the design formula of the BFRP strengthened damaged and non-damaged masonry walls was given,and the results showed that the theoretical values are in good agreement with the experimental results.The experimental results showed that the BFRP strengthening technique can effectively postponed the development of cracks,increase the capacity of deformation and load-carrying,and the masonry walls＇integrity and energy dissipation properties can also gain a significant improvement.
出处
《四川大学学报（工程科学版）》
EI
CAS
CSCD
北大核心
2013年第2期56-61,共6页
Journal of Sichuan University (Engineering Science Edition)
基金
国家科技支撑计划资助项目(2009BAJ28B02)
关键词
玄武岩纤维
加固
滞回特性
抗震性能
砌体
BFRP
reinforcement
hysteretic property
seismic performance
masonry
