摘要
将颗粒调谐质量阻尼技术引入高层建筑风振控制领域,提出一种颗粒调谐质量阻尼系统,并以进行风振控制问题研究的Benchmark模型(基准模型)为原型,在1∶200的缩尺比下进行了附加颗粒调谐质量阻尼系统的气动弹性模型风洞试验。通过颗粒调谐质量阻尼系统(包括颗粒材料质量密度、阻尼器与模型质量比、腔体与颗粒质量比及颗粒直径)、风洞风速及风攻角等参数的变化分别考查了其对高层建筑风致振动响应的减振规律。结果表明:颗粒调谐质量阻尼系统对高层建筑风致振动响应有良好的减振控制效果,控制合理的颗粒质量密度和增加颗粒数量均可以提高其减振效果。
A particle tuned mass damper system is developed by introducing the particle damping technology to the high-rise building vibration controlling area. An aero-elastic wind tunnel experiment about the damping performance of the system was conducted by attaching the system on the Benchmark model for the wind-excited response control of tall buildings. The scaling ratio of the experiment model was 1 ∶ 200. The vibration reduction laws of the system were explored by changing the tuned mass damping system（ including the density of the particle material,the mass ratio between damper and the model,the mass ratio between container and particles and the particle size）,wind velocity and the inclination angle of the wind,separately. The results show that the particle tuned mass damper system have favorable damping performance on the wind-induced vibration of high-rise buildings. The damping performance can be improved by controlling the density of particles,increasing the particle amount.
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
2015年第11期92-98,共7页
Journal of Building Structures
基金
国家自然科学基金项目(51478361)
中央高校基本科研业务费专项(0200219146)
关键词
高层建筑
颗粒调谐质量阻尼系统
风洞试验
风振控制
被动控制
tall building
particle tuned mass damper system
wind tunnel test
wind-induced vibration control
passive control
