玄武岩纤维加固砌体墙抗震性能试验研究

Experimental study on seismic performance of masonry walls strengthened with BFRP

通过对4片无筋砌体砖墙在低周往复荷载作用下的试验,研究了玄武岩纤维加固砌体墙的抗震性能;分析了加固前后墙体的受力性能、滞回特性、刚度退化、耗能及变形能力等变化规律。研究表明:玄武岩纤维加固可以较大程度地提高砖墙的极限荷载和变形性能、有效延缓墙体裂缝发展、改善砌体脆性,从而显著提高结构的抗震性能;采用玄武岩纤维加固砌体结构是一种经济有效的结构加固方法。

Based on the test of 4 unreinforced masonry walls under low cycle reversed loading, the seismic performance of masonary walls strengthened with BFRP were analyzed, mainly including the bearing behavior, hysteretic property, stiffness degeneration, energy dissipation and deformation capability before and after strengthening. The experimental results show that the BFRP strengthening technique can increase the ultimate load and the deformation capability, effectively postpone the development of cracks, ameliorate the brittleness of masonry, and improve the energy dissipation properties of masonry walls. It is an economic and effective method to strengthening masonry structures with BFRP.