混凝土挂柱挂板组合墙装配结构抗震性能振动台试验研究

SHAKING TABLE EXPERIMENT ON RC PRECAST STRUCTURE CONTAINING CONCRETE HANGING SLABS AND COLUMNS COMPOSITE WALLS

为改善混凝土装配结构的抗震性能,提出了混凝土挂柱挂板组合墙装配框架结构体系,并通过设计1/2缩尺模型对混凝土挂柱挂板组合墙装配框架结构的抗震性能进行了振动台试验研究。结果表明,挂柱挂板组合墙与主体结构的连接以及挂板挂柱之间具有较好的连接性能,能保证整体结构的抗震性能;挂柱挂板组合墙对整体结构的刚度贡献随着地震强度的增加先增加后减小;整体结构首先在挂板挂柱出现裂缝,随后挂柱挂耳两端逐步损伤压碎,最后主体结构逐渐屈服,表现出良好的抗震性能。

In order to improve the seismic performance of precast concrete structures, frame precast structure containing concrete hanging column and hanging slab composite wall was proposed in this paper, and shaking table tests on 1/2 scale model of the proposed frame structure were performed to study the seismic performance. The research results indicate that the connection between hanging-column-hanging-slab composite wall and the frame structure works well, as well as the connection between hanging slab and hanging column, which ensure the seismic performance of the whole structures. The stiffness contribution of the composite wall on the whole structure increased firstly and then decreased with the increase of the earthquake strength. In the whole precast, the hanging slab and colturm cracks firstly, then the hanger on the hanging column crushed progressively on their both ends, and the structure gradually yield after that, the whole structures showed good seismic performance.