一种高层结构抗风新体系-液体粘滞阻尼器和调谐质量阻尼器(TMD)联合使用的探索
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(北京奇太振控科技发展有限公司,北京100037)[摘要] 主要研究目的是探索一种高层,特别是超高层结构抗风的新体系——使用质量相对较小的TMD与少量直接安置的阻尼器协同工作体系。将这种体系与传统的抗风TMD系统在抗风方面进行详细分析。为某150m高层混凝土结构及天津富力广东大厦(420m)分别设计了对应的两种主要用于抗风的减振方案,并将相同工况下各自的减振效果加以比较。使用风时程函数进行数值积分,计算结果表明,较小的TMD与少量阻尼器协同工作可以和单独用大型的TMD起到同样的抗风效果,且在高效的套索连接形式的帮助下,前者的成本远低于后者。[关键词] 阻尼器;TMD;抗风;套索;联合使用中图分类号:TU352.1 文献标识码:A 文章编号:1002-848X(2013)S2-0720-06作者简介:彭程,助理工程师,Email:orange_peng@foxmail.com。Discovery for a new system, using fluid viscous damper and tuned mass damper (TMD) together in high-rise structure for wind-induced vibration reductionPeng Cheng, Chen Yongqi(Beijing Qitai Shock Control and Scientific Development Co., Ltd., Beijing 100037,China)Abstract : It is the main point that to study a new system, using relatively lighter TMD as well as a small quantity of dampers work cooperatively for high-rise building, especially super high-rise building. This system as well as traditional TMD system were completely discussed. In this paper, the two approaches mainly for wind resistance are designed for a 150-meter-high concrete structure and Tianjin FULI Guangdong Tower (420m) respectively, and compared the damping effects of them under the same load case. Analyses in this paper are proceeded with numerical integration using wind time-history excitation. The results show that, small TMD and few dampers work cooperatively can perform same effect as with the huge TMD operates by itself, and thank for toggle-brace-dampers, the cost of the former is much smaller than the later.Keywords : damper; TMD; wind resistance; toggle; work cooperatively