单层减震结构模型的振动台试验

Vibration-Table Test for Single Storey Vibration Attenuating Structure Model

对安装了砂质减震器单层减震结构模型进行了振动台试验研究。模型参数的选择是使模型和减震器尽可能接近真实结构的工作条件。使用减震系统以后，框架—筒体结构的核心筒体与框架各层楼盖之间的连接由整体刚性连接变为柔性连接，改变了原结构体系的动力特性；通过优化选择减震器的参数，可以大幅度地减小结构的最大振幅；减震器参数的选择应当与框架—核心筒体结构中框架和筒体部分各自的结构特性相匹配。试验结果表明，安装砂质减震器模型，减震效果良好。

The authors tested the vibration table which installed sandy absober sigle storey vibration-attenuating structure model and made the model and absorber as far as possible close to the work condition of the practical structure in the choosing of model's parameters. After the vibration-attenuation system used, the joint between the core tube body of skeleton frames-tube body stracture withthe skeleton frames various building covers changes their joints from whole rigidity into flexibility;through optimizing and choosipg the parameters of absorbers, the struture's maximum amplitude can be decreased in a great range. Test result shows that installing sandy. absorkers model has got good result