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喷射玻璃纤维聚合物(SGFRP)加固3片带构造柱砖墙,通过低周往复水平荷载作用下的抗震性能试验研究,描述了试验墙体的破坏形态,探讨了喷射玻璃纤维聚合物加固后带构造柱砖墙的加固效果。试验结果表明,加固对墙体的开裂位移、极限位移和承载能力都有较大的提高,并能有效改善墙体的延性和耗能能力。不同的喷射GFRP厚度和短切纤维长度对砖墙抗震加固效果也有一定的影响,通过对比不同加固方式对墙体抗震性能的影响,提出合理的加固建议。
Sprayed glass fiber reinforced polymer (SGFRP) was used to reinforce the three-ply structural column brick wall. The seismic behavior of the test wall was described by the low-cyclic reciprocating horizontal load. The damage morphology of the test wall was described. Constructed column brick wall reinforcement effect. The test results show that the reinforcement has a great improvement on the cracking displacement, the ultimate displacement and the bearing capacity of the wall, and can effectively improve the ductility and energy dissipation capacity of the wall. Different jet GFRP thickness and chopped fiber length also have a certain impact on the seismic strengthening effect of brick walls. By comparing the different reinforcement methods on the seismic performance of the wall, put forward reasonable reinforcement recommendations.