玻璃纤维布加固砖墙抗震性能试验

Experimental Research on Seismic Performance of Brick Masonry Walls Strengthened with Glass Fiber Reinforced Polymer

通过1片未加固砖墙体和4片玻璃纤维布加固砖墙体抗震性能的试验,对墙体的滞回特性、刚度退化性能、变形性能及耗能性能进行系统分析.研究结果表明,加固方式对墙体的刚度退化性能和变形性能影响不大,但对墙体的耗能性能影响较明显.按照文中提出的加固方式粘贴玻璃纤维布,能有效地提高墙体的极限荷载、减缓墙体的刚度退化、增强其变形能力和耗能能力.

By carrying out the experiment of five pieces of brick masonry walls with pilaster under low reversed cyclic loading, including four pieces strengthened with GFS and one piece un-strengthened, the seismic performance, such as the hysteretic behavior, rigidity degradation, deformation and energy-dissipation, are studied systematically, The experimental results showed that strengthening modes have little influence on the rigidity degradation and deformation of the wall. but have obvious influence on the energy-dissipation of the wall. The GFS bonding mode is put forward to strengthen walls, which increases the ultimate load,deformation and energy-dissipation of the walls, improves the rigidity degradation remarkably.