EXPERIMENTAL RESEARCH ON SEISMIC PERFORMANCE OF BRICK MASONRY WALL WITH PILASTER REINFORCED BY GFRP WITH "THROUGH-WALL" ANCHOR
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摘要: 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。
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关键词:
- 玻璃纤维复合材料(GFRP) /
- 加固 /
- 带壁柱砖墙 /
- “对拉”锚 /
- 抗震性能
Abstract: It was carried out an experimental research on seismic performance of brick masonry walls with pilasterreinforced by glass GFRP whenthrough-wall anchors were used. By carrying out the experiment of six pieces ofbrick masonry walls with pilaster strengthened by GFRP and three pieces of masonry wall with through-wallanchor under low reversed cyclic loading, the failure characteristic of every wall was explained ; Seismicperformances such as resilience, rigidity and its degeneration, deformation, energy consumption ifthrough-wallanchors were taken or not. The test results showed that using through-wall anchors could decrease rigiditydegeneration of the wall; through-wall anchors had some influence on deformation of the wall, and was betterthan strengthening modes; Usingthrough-wall anchors had little influence on energy consumption of the wallsunder the ultimate load, but was another thing under the ultimate displacement. -
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