TMD减振技术在国家乒乓球训练基地训练馆中的应用

APPLICATION OF TMD VIBRATION TECHNIQUE IN THE NATIONAL TABLE TENNIS TRAINING BASE

为了满足国家级乒乓球训练基地项目对楼板振动的较高要求,对大跨度钢框架-支撑结构体系中的压型钢板组合楼盖进行了运动员训练状态下的振动性能研究。采用SAP2000对典型楼层进行模态分析和各种不利工况(行走、跑步等激励力)作用下楼板的动力时程响应分析,并把得出的竖向振动加速度与国内外的研究成果和业主要求的标准进行对比。对于不满足要求的区域设置了不同型号的调谐质量阻尼器进行减振处理,通过现场的安装调试和仪器检测,表明达到了预期的减振效果。

In order to meet the higher requirements for floor vibration in the National Table Tennis Training Base project,the vibration performance of the composite floor with profiled steel plate of long span steel frame bracing structure was studied under the condition of athlete training.The modal analysis of typical floor and the dynamic response analysis under various unfavorable working conditions were carried out by using SAP2000.The dynamic time-history response of floor under the excitation of walking and running was studied.The vertical vibration acceleration obtained was compared with the domestic&foreign research results and the requirements of the owners.Different types of Tuned Mass Dampers(TMD)were set up for areas that did not meet the requirements.The installation and debugging of the site and the testing of the instrument proved that the desired damping effect was achieved,and the owner′s requirements for vibration control and comfort were met correctly.