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通过1片未加固带壁柱砖墙和5片玻璃纤维复合材料(GFRP)加固带壁柱砖墙,其中3片采用“对拉”锚固措施,在低周往复荷载作用下进行抗震性能试验,阐述各试件的破坏特征;研究“对拉”锚固措施以及加固量对GFRP加固前后墙体的刚度及退化特性、变形性能、耗能性能等影响。研究结果表明:采用“对拉”锚固减小后期墙体刚度的衰减;“对拉”锚固对墙体变形能力有一定程度的影响,且比加固方式影响大;在极限荷载状态下,采用锚固措施对试件耗能性能的影响不明显,但在极限位移状态下,锚固措施的采用明显地改善墙体的耗能性能。
Three piles of wall-stiffened brick wall were reinforced by one unbonded plinth brick wall and five fiberglass composites (GFRP), of which three were anchored by “pull-on” anchorage and were subjected to seismic behavior under low cyclic reciprocating loads The failure characteristics of each test piece are expounded. The effects of anchorage measures and the amount of reinforcement on the stiffness, degeneration, deformation and energy dissipation of the wall before and after GFRP reinforcement are studied. The results show that: the use of “pull” anchorage to reduce the attenuation of the late stiffness of the wall; “pull” anchorage on the deformation of the wall to a certain extent, and greater than the reinforcement method; in the ultimate load state , The effect of anchoring measures on the energy dissipation performance of the specimens is not obvious. However, under the condition of extreme displacement, the adoption of anchoring measures can obviously improve the energy dissipation performance of the wall.