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采用橡胶支座做基础隔震的结构隔离水平地震作用的效果已被众多试验和实际工程所证实,然而能否通过适当的组合和设计使橡胶支座基础隔震结构在隔离水平地震作用的同时,能够隔离地铁引起的建筑结构竖向振动具有重要的研究价值。某6层砌体结构拟采用橡胶支座与叠层橡胶滑板支座并联组合作为隔振(震)层来隔离地铁引起的竖向振动。为了检验该组合隔振(震)系统的竖向隔振性能,对此6层砌体结构的模型进行了振动台试验,测试了模型的自振频率,检验了模型竖向隔振能力。结果表明,这种组合隔振(震)系统能够有效地隔离地铁引起的结构振动,可以在有类似要求的工程中推广使用。
The effect of isolation of horizontal seismic action using rubber bearings as base isolation structure has been verified by many experiments and practical projects. However, whether the rubber bearing base isolation structure can isolate the horizontal seismic action through proper combination and design It has important research value to isolate the vertical vibration of building structure caused by subway. A 6-story masonry structure is proposed to use a combination of rubber bearings and laminated rubber skateboard bearings as a vibration isolation layer to isolate the vertical vibration caused by the subway. In order to test the vertical vibration isolation performance of the combined vibration isolation system, the six-story masonry structure model was tested by shaking table, the natural frequency of the model was tested, and the vertical vibration isolation capability of the model was tested. The results show that the combined vibration isolation system can effectively isolate the structural vibrations induced by the subway and can be used in similar projects.