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通过设计和制作2个钢板摩擦耗能器分别附加在预制梁配筋不同的预压装配的框架节点上。采用水平低周反复荷载对2个组合装配节点进行拟静力试验,研究了试件的滞回曲线、骨架曲线、耗能能力、刚度退化等抗震指标。试验结果表明:附加钢板摩擦耗能器的预压装配框架节点具有较好的承载能力和耗能能力,可以较好地实现梁铰破坏机制,有利于结构抗震设计。
The design and manufacture of two steel plate frictional energy dissipators are respectively attached to prefabricated prefabricated prefabricated frame joints. The quasi-static tests of two composite assembly joints were carried out with horizontal low cycle repeated loading. The seismic indexes such as hysteresis curve, skeleton curve, energy dissipation capacity and stiffness degradation of the specimens were studied. The test results show that the prestressed assembly frame joints with additional plate friction dissipators have better bearing capacity and energy dissipation capability, and can well achieve the beam hinge failure mechanism, which is in favor of the structural seismic design.