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为了研究在8度地震区建造小型混凝土空心砌块九层房屋的可行性,提出了一种新的结构体系──构造柱与芯柱组合的承重体系,并对一幢按1/4缩尺比例建造的九层房屋模型进行了水平反复加载静力试验和振动台激振试验,获得了模型房屋在水平荷载作用下整体受力的抗力特性和破坏形态以及在基础激振作用下的动力反应与倒塌机制。试验研究结果表明:(1)采用芯柱与构造柱结合的小型混凝土空心砌块体系在8度地震区建造九层房屋是完全可行的。(2)构造柱、芯柱小型混凝土空心砌块结构体系的抗震性能明显优于仅设芯柱的小型混凝土空心砌块结构体系。
In order to study the feasibility of building a nine-storey small concrete hollow block in an 8-degree earthquake area, a new structural system is proposed-the load-bearing system of the combination of the structural column and the core column, Scale building of nine-storey house model was subjected to horizontal static load test and shaking table vibration test. The resistance and failure modes of the whole house under the horizontal load were obtained and the dynamic response under the basic excitation And collapse mechanism. The experimental results show that: (1) The construction of nine-story houses in the 8-degree seismic area is feasible by adopting the small concrete hollow block system combined with columns and structural columns. (2) The seismic performance of structural column and core-column small concrete hollow block structural system is better than that of the small concrete hollow block structure system with core-column only.