【摘要】 为分析建造在7度地震区小型混凝土空心砌块八层大开间隔震房屋的抗震性能,按相似理论设计制作了比例为1∶4的砌块模型结构,按7度设防要求实施结构措施,在基础与结构物底部安放夹层橡胶垫,对模型结构进行了地震模拟振动台试验. 试验结果表明:结构底层的峰值加速度比台面输入峰值加速度降低 50%以上,对砌体隔震结构体系可以采取降烈度设计.更多还原

【Abstract】 In order to study the aseismic behavior of a 8-story ,big-space isolated building with small-size concrete block in seismic regions of intensity 7, a model at 1/4 scale of the masonry building was designed and fabricated by theory of similitude. The construction measure was carried out according to the seismic demand for intensity 7.Four sandwich rubber bearings were put between the foundation and the bottom of the model structure. The isolation behavior of the isolated model structure was studied by a simulated earthquake test on a shaking table. The experimental results on shaking table show that the maximum acceleration of the construction bottom is reduced 50 percent higher than the table-board and we can reduce the intensity to design the isolated masonry building.更多还原