巨子型有控结构体系中黏滞阻尼器参数研究
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摘要
巨子型有控结构体系(Mega-sub Controlled Structure System,即MSCSS)是一种新型的超高层建筑结构体系。本文针对MSCSS的构造特点,提出一种安装黏滞阻尼器的新的布置方案,通过研究该布置方案中取不同黏滞阻尼器参数时巨子型有控结构体系在罕遇地震作用下的动力响应,提出了与该结构体系动力特性匹配的最佳阻尼参数。结果表明,采取文中所述的附设黏滞阻尼器的布置方案,可以有效地减少黏滞阻尼器数量,减小巨子型有控结构体系的加速度响应,极大程度地缩短了运算时间;黏滞阻尼器支撑刚度值的大小对结构塑性铰出现的范围影响很大,合理匹配的阻尼参数的选取可以充分提高巨子型有控结构体系抵抗地震和强风等灾害的能力,同时本文的结果也为这种新型结构体系的进一步深入研究奠定了基础。
Mega-sub Controlled Structure System(MSCSS) is a new form of super high-rise building structural system.In this paper a new arranging scheme about the insertion of the viscous dampers is proposed according to construction features of MSCSS.The optimum damping parameters matching with the dynamic characteristics of MSCSS are introduced through investigating the dynamic responses of this structure system with the viscous dampers of different damping parameters subjected to rare earthquake.The results show that this scheme can effectively reduce the number of the viscous dampers and the acceleration response of MSCSS under the seismic load.Furthermore it can shorten the computation time.The bracing stiffness of the viscous dampers influences the scope of the plastic hinges appearing in MSCSS greatly.The capacities of anti-earthquake and anti-wind of MSCSS are increased by adopting the optimum parameters.The results have laid foundation for the further research of this new structure system.
Mega-sub Controlled Structure System(MSCSS) is a new form of super high-rise building structural system.In this paper a new arranging scheme about the insertion of the viscous dampers is proposed according to construction features of MSCSS.The optimum damping parameters matching with the dynamic characteristics of MSCSS are introduced through investigating the dynamic responses of this structure system with the viscous dampers of different damping parameters subjected to rare earthquake.The results show that this scheme can effectively reduce the number of the viscous dampers and the acceleration response of MSCSS under the seismic load.Furthermore it can shorten the computation time.The bracing stiffness of the viscous dampers influences the scope of the plastic hinges appearing in MSCSS greatly.The capacities of anti-earthquake and anti-wind of MSCSS are increased by adopting the optimum parameters.The results have laid foundation for the further research of this new structure system.
引文
[1]Feng MQ,Mita A.Vibration control of tall buildings using mega-sub configuration[J].ASCE,Journal of Engineering Mechanics,1995,121(10):1082-1087.
[2]Zhang X A,Zhang J L,Wang D,et al.Controlling characteristic passive mega-sub controlled frame subjected to random wind loads[J].Journalof Engineering Mechanics,2005,131(10):1046-1055.
[3]Zhang X A,Wang D,Jiang J S.The controlling mechanismand the controlling effectiveness of passive mega-sub controlled frame subjected to ran-dom wind loads[J].Journal of Sound and Vibration,2005(283):543-560.
[4]Lian Y D,Zhang X A,Cherry S.Damping characteristics of friction damped braced frame and Its effectiveness in the mega-sub controlled struc-ture system[J].Earthquake Engineering and Engineering Vibration,2007,6(2):171-181.
[5]周湘鄂.巨-子型有控结构在地震激励下控制性能分析[D].西安:西北工业大学,2007:5-20.
[6]张洵安,汪宁.非平稳地震作用下巨型-子控制结构体系反应分析[J].郑州大学学报,2005,26(1):42-46.
[7]连业达,张洵安,王朝霞.地震力作用下影响巨子型有控结构的动力参数研究[J].地震工程与工程振动,2008,28(2):153-157.
[8]周云.黏滞阻尼减震结构设计[M].武汉:武汉理工大学出版社,2006.
[9]翁大根,卢著辉,徐斌,等.黏滞阻尼器力学性能试验研究[J].世界地震工程,2002,18(4):30-35.
[10]中国建筑科技标准设计研究院.SAP2000中文版使用指南[M].北京:人民交通出版社,2008.
[2]Zhang X A,Zhang J L,Wang D,et al.Controlling characteristic passive mega-sub controlled frame subjected to random wind loads[J].Journalof Engineering Mechanics,2005,131(10):1046-1055.
[3]Zhang X A,Wang D,Jiang J S.The controlling mechanismand the controlling effectiveness of passive mega-sub controlled frame subjected to ran-dom wind loads[J].Journal of Sound and Vibration,2005(283):543-560.
[4]Lian Y D,Zhang X A,Cherry S.Damping characteristics of friction damped braced frame and Its effectiveness in the mega-sub controlled struc-ture system[J].Earthquake Engineering and Engineering Vibration,2007,6(2):171-181.
[5]周湘鄂.巨-子型有控结构在地震激励下控制性能分析[D].西安:西北工业大学,2007:5-20.
[6]张洵安,汪宁.非平稳地震作用下巨型-子控制结构体系反应分析[J].郑州大学学报,2005,26(1):42-46.
[7]连业达,张洵安,王朝霞.地震力作用下影响巨子型有控结构的动力参数研究[J].地震工程与工程振动,2008,28(2):153-157.
[8]周云.黏滞阻尼减震结构设计[M].武汉:武汉理工大学出版社,2006.
[9]翁大根,卢著辉,徐斌,等.黏滞阻尼器力学性能试验研究[J].世界地震工程,2002,18(4):30-35.
[10]中国建筑科技标准设计研究院.SAP2000中文版使用指南[M].北京:人民交通出版社,2008.
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