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粘滞阻尼墙是一种速度相关型的阻尼器,依靠粘滞材料的剪切变形来耗能.对粘滞阻尼器进行实验加载的传统方法是采用高速作动器,对实验设备要求比较高.为了降低实验成本,利用更普及的实验设备——振动台对粘滞阻尼墙模型进行加载,提出了一种新的实验方法:实验模型中完全由粘滞阻尼墙承担水平力,没有设置其它的抗侧构件;水平力由与粘滞阻尼墙内部钢板相连的配重的惯性效应产生;配重的自重通过承重构件传递到滑轮上.同时提出了高精度的数据拟合和分析方法,可以通过计算间接得到粘滞阻尼墙的滞回曲线.设计、制作了一个小比例实验模型,通过振动台加载,取得了很好实验效果,证明了所提实验方法的正确性.最后通过理论推导,针对利用振动台加载的实验设计提出了建议方法.
Viscous damping wall is a speed-dependent damper that relies on shear deformation of viscous materials to dissipate energy.The traditional method of experimentally loading viscous dampers is to use a high-speed actuator that requires a high degree of experimental equipment In order to reduce the experimental cost, a new experimental method is put forward by using the more universal experimental equipment - shaking table to load the viscous damping wall model: in the experimental model, the viscous damping wall is entirely responsible for horizontal force and no other The horizontal force is generated by the inertia effect of the counterweight attached to the steel plate inside the viscous damping wall and the weight of the counterweight is transferred to the pulley through the load bearing member.At the same time, a high-precision data fitting and analysis method is provided, The hysteretic curve of the viscous damping wall is obtained indirectly through calculation. A small-scale experimental model is designed and fabricated, and the experimental results are obtained through the shaking table loading, which proves the correctness of the experimental method.Finally, The proposed method for experimental design using shaker loading is presented.