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为了研究框格形式对加气混凝土砌块组合墙加固框架抗震性能的影响,对1∶2比例的2肋梁3肋柱组合墙加固框架与2肋梁5肋柱组合墙加固框架试件进行了低周反复荷载试验,分析了试件的破坏过程和破坏特点,对比了试件在承载能力、刚度、耗能等抗震性能方面的差异。结果表明:框格形式与其内部砌块布置方式均对组合墙加固框架的抗震性能起着重要作用;虽然5肋柱试件肋柱数量较多,但由于砌块布置不尽合理,其承载力提高程度不大,受力过程前段的刚度反而较砌块布置合理的3肋柱试件低;增加肋柱数量可以提高组合墙加固框架的抗震性能,但需要以合理砌块布置方式为前提才能更好发挥其优势。
In order to study the effect of grid form on the seismic performance of reinforced frame with composite wall, the ratio of 1: 2 reinforced frame with 2 ribbed 3 ribbed composite wall and 2 ribbed 5 ribbed composite wall The low-cycle cyclic loading test was carried out. The failure process and failure characteristics of the specimens were analyzed. The differences of the specimens in bearing capacity, stiffness and energy dissipation were compared. The results show that both the sash form and the internal block layout play an important role in the seismic performance of the combined frame reinforced structure. Although the number of ribs is larger in the 5-rib specimen, due to the unreasonable block layout, the bearing capacity The rigidity of the anterior section of the force-bearing process is lower than that of the 3-rib specimens with reasonable block layout. Increasing the number of rib-columns can improve the seismic performance of the combined frame-reinforced frame, but it needs to be based on reasonable block layout Better play its advantages.