某市体育中心大、小罩棚安装调谐质量阻尼器后竖向减振效果研究

Study on Vertical Vibration Reduction Effect of Large and Small Awning Installed Tuned Mass Damper of a City Sports Center

在实际环境中,风荷载对大、小罩棚舒适度的影响较大。为解决大、小罩棚舒适度的问题,在梁端设置调谐质量阻尼器(TMD)来减小风荷载的影响。为研究TMD对体育场大、小罩棚的减震效果,本文通过实际风荷载作用下对安装TMD前后的大、小罩棚进行竖向振动测试,评价大、小罩棚的减振效果。试验结果表明:TMD可有效降低大、小罩棚竖向振动,减小主体结构抖动情况。

In an actual environment,wind load has a great influence on the comfort of large and small awning.In order to solve the comfortable problem of large and small awning,Tuning Mass Damper(TMD) is set at the beam end to reduce the influence of wind load.To study the damping effect of TMD on large and small awning,this paper takes vertical vibration test of large and small awning before and after TMD installation under actual wind load to evaluate the vibration reduction effect of large and small awning. The results show that TMD can effectively reduce the vertical vibration of large and small awning and reduce the shaking of main structure.