具有横向干扰运动粘性阻尼墙的阻尼特性试验研究

本文通过粘性阻尼墙的非线性动力学试验建立阻尼参数力学模型,研究阻尼参数在具有横向干扰运动剪切模式的非线性特性及随振动幅值和振动频率的变化规律,给出适合工程应用的参考经验的拟合公式。研究显示粘性阻尼墙在剪切模式下可提供高层建筑较大的阻尼特性,横向干扰运动对阻尼常数有一定的影响,研究结果可以为工程应用提供参考,可为高层建筑抵制地震和风振提供有效的动力学设计手段。

Dynamic Test Research of Viscous-damping Wall with Out-of-Plane Motion

The mechanical model of damping para meter is established by nonlinear dynamic test for viscous damping wall(VD wall)in the paper.With little out-of-pla ne motion,there are some changes for the shear model of VD wall.And nonlinear damping property is researched with vibration frequency and a mplitude to be changed.The fitting f ormula of viscous damping is produced for engineering application.The result shows that the viscous damping wall has g ood damping property for high building i n shear model.Out-of-plane motion h as no obvious effect on damping property of VD wall.These results can be used for en gineering analysis,and they can als o be taken as dynamic design tool for e arth-quake and wind vibration control of high building.