某超高层结构三种风振控制方法的对比研究
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摘要
以某超高层结构的风振控制为研究对象,阐述了风荷载的动力特性,利用改进的自回归模型模拟了X和Y两个方向的脉动风荷载时程,针对该工程的自身特点提出了设置粘滞阻尼器和调频质量阻尼器(Ⅱ)、设置粘滞阻尼器(Ⅲ)、设置调频质量阻尼器(Ⅳ)的三种减振控制方案。在10年、50年和100年一遇三种风振作用下,对该工程进行了不同风振方向和不同控制方案下的风振控制动力分析。对比分析了不同方案下的控制效果,结果表明控制方案Ⅱ、Ⅲ具有大量耗散风振输入能量、有效衰减结构动力响应、降低风振作用下结构层加速度和层间侧移沿高度方向突变的能力,可减小结构顶层位移和加速度响应的最大幅度分别为33%和51.4%,证明了所提控制方案对于抑制结构风致振动、提高结构安全和舒适使用性能的可行性和有效性。最后依据分析结果对超高层结构体系风振控制的分析与设计提出了建议。
Wind-induced vibration control of a super high-rise building was selected as an example in the paper.The dynamic characteristic of wind was introduced.Fluctuating wind-speed time series in both X-direction and Y-direction were simulated by improved AR model.According to natural characteristics of the building,three kinds of damping control plans of added viscous dampers and tuned mass damper(Ⅱ),added viscous dampers(Ⅲ),and added tuned mass damper(Ⅳ) were put forward.Dynamic analysis of wind-induced vibration control for the building in different wind directions and with different control plans was carried out under the condition of wind strength encountered once for 10 years,50 years and 100 years.The control effects of different plans were analyzed in detail.The results show that the control plans of II and III can dissipate energy imported by wind,attenuate dynamic response,reduce mutation of story-acceleration response and inter-story displacement effectively.The maximum roof displacement and acceleration response can be respectively reduced by 33% and 51.4%.So,the control plans are feasible and effective to control wind-induced vibration,improve safety and comfort of structure.Some suggestions for wind-induced vibration control of high-rise buildings were put forward.
Wind-induced vibration control of a super high-rise building was selected as an example in the paper.The dynamic characteristic of wind was introduced.Fluctuating wind-speed time series in both X-direction and Y-direction were simulated by improved AR model.According to natural characteristics of the building,three kinds of damping control plans of added viscous dampers and tuned mass damper(Ⅱ),added viscous dampers(Ⅲ),and added tuned mass damper(Ⅳ) were put forward.Dynamic analysis of wind-induced vibration control for the building in different wind directions and with different control plans was carried out under the condition of wind strength encountered once for 10 years,50 years and 100 years.The control effects of different plans were analyzed in detail.The results show that the control plans of II and III can dissipate energy imported by wind,attenuate dynamic response,reduce mutation of story-acceleration response and inter-story displacement effectively.The maximum roof displacement and acceleration response can be respectively reduced by 33% and 51.4%.So,the control plans are feasible and effective to control wind-induced vibration,improve safety and comfort of structure.Some suggestions for wind-induced vibration control of high-rise buildings were put forward.
引文
[1]周云.粘滞阻尼减振结构设计[M].武汉:武汉理工大学出版社,2006.
[2]周云.粘弹性阻尼减振结构设计[M].武汉:武汉理工大学出版社,2006.
[3]欧进萍,王永富.设置TMD、TLD控制系统的高层建筑风振分析与设计方法[J].地震工程与工程振动,1994,14(2):61-75.
[4]项海帆,瞿伟廉.高层建筑风振控制基于规范的实用设计方法[J].振动工程学报,1999,12(2):151-156.
[5]瞿伟廉,陶牟华,CHANGCC.五种被动动力减振器对高层建筑脉动风振反应控制的实用设计方法[J].建筑结构学报,2001(4):23-31.
[6]Chang C C,Qu W L.Unified dynamic absorber design formu-las for wind-induced vibration control of tall buildings[J].The Structural Design of Tall Buildings,1988,7(2):147-166.
[7]Qu W L,Chang C C.Practical design method of controllingwind induced vibration responses of tall building with passivedynamic absorbers[J].In:Proceedings of 2WCSC,Kyoto,JAPAN,1998.
[8]Xu Y L,kwok K C S,Samali B.Control of Wind InducedTall Building Vibration by Tuned Mass Dampers[J].Journalof wind Engineering and Industry Aerodynamics,1992,40:1-32.
[9]王肇民.电视塔结构TMD风振控制研究与设计[J].建筑结构学报,1994,15(5):2-13.
[10]瞿伟廉,程懋堃,毛增达,等.设置粘弹性阻尼器高层钢结构高层建筑抗震抗风设计的实用方法[J].建筑结构学报,1998,19(3):42-48.
[11]葛晓明,刘雯彦,范存新.VED在控制高层钢结构建筑风振反应中的研究[J].南京师范大学学报(工程技术版),2002,2(3):62-66.
[12]欧进萍,张春巍,李惠,等.大连市某高层建筑风振和地震反应的主动质量阻尼(AMD)控制分析与设计[J].建筑结构学报,2004,25(3):29-37.
[13]瞿伟廉,沈小白,费涵昌.V型AMD对台湾T&C Tower大楼风振控制的设计[J].土木工程学报,1995,28(5):4-11.
[14]瞿伟廉,宋波,陈妍桂.TLD对珠海金山大厦主楼风振控制的设计[J].建筑结构学报,1995,16(3):21-28.
[15]李春祥.高层钢结构TMD风振舒适度控制优化设计方法[J].力学与实践,2000,22(3):25-28.
[16]李春祥,熊学玉.高层钢结构TMDs风振舒适度控制最优参数与简化设计[J].振动与冲击,2002,21(2):86-90.
[17]张敏.巨型框架多功能减振结构风振控制研究[D].南京:东南大学,2003.
[18]杨东升,蓝宗建.巨型框架多功能减振结构体系风振响应分析[J].工业建筑,2005,35(1):30-35.
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[20]高层建筑混凝土结构技术规程(JGJ3-2002)[S].北京:中国建筑出版社,2002.
[21]埃米尔.希缪,罗伯特.H.斯坎伦著(刘尚培,项海帆,谢霁译).风对结构的作用———风工程导论[M].上海:同济大学出版社,1992.
[22]黄本才.结构抗风分析原理及应用[M].上海:同济大学出版社,2001.
[23]AIannuzzi,P Spinelli.Artificial wind generation and structur-al response[J].Journal of Structural Engineering,ASCE,1987,113(10):2382-2398..
[24]张志涌,等.精通MATLAB6.5版[M].北京:航空航天大学出版社,2003.
[2]周云.粘弹性阻尼减振结构设计[M].武汉:武汉理工大学出版社,2006.
[3]欧进萍,王永富.设置TMD、TLD控制系统的高层建筑风振分析与设计方法[J].地震工程与工程振动,1994,14(2):61-75.
[4]项海帆,瞿伟廉.高层建筑风振控制基于规范的实用设计方法[J].振动工程学报,1999,12(2):151-156.
[5]瞿伟廉,陶牟华,CHANGCC.五种被动动力减振器对高层建筑脉动风振反应控制的实用设计方法[J].建筑结构学报,2001(4):23-31.
[6]Chang C C,Qu W L.Unified dynamic absorber design formu-las for wind-induced vibration control of tall buildings[J].The Structural Design of Tall Buildings,1988,7(2):147-166.
[7]Qu W L,Chang C C.Practical design method of controllingwind induced vibration responses of tall building with passivedynamic absorbers[J].In:Proceedings of 2WCSC,Kyoto,JAPAN,1998.
[8]Xu Y L,kwok K C S,Samali B.Control of Wind InducedTall Building Vibration by Tuned Mass Dampers[J].Journalof wind Engineering and Industry Aerodynamics,1992,40:1-32.
[9]王肇民.电视塔结构TMD风振控制研究与设计[J].建筑结构学报,1994,15(5):2-13.
[10]瞿伟廉,程懋堃,毛增达,等.设置粘弹性阻尼器高层钢结构高层建筑抗震抗风设计的实用方法[J].建筑结构学报,1998,19(3):42-48.
[11]葛晓明,刘雯彦,范存新.VED在控制高层钢结构建筑风振反应中的研究[J].南京师范大学学报(工程技术版),2002,2(3):62-66.
[12]欧进萍,张春巍,李惠,等.大连市某高层建筑风振和地震反应的主动质量阻尼(AMD)控制分析与设计[J].建筑结构学报,2004,25(3):29-37.
[13]瞿伟廉,沈小白,费涵昌.V型AMD对台湾T&C Tower大楼风振控制的设计[J].土木工程学报,1995,28(5):4-11.
[14]瞿伟廉,宋波,陈妍桂.TLD对珠海金山大厦主楼风振控制的设计[J].建筑结构学报,1995,16(3):21-28.
[15]李春祥.高层钢结构TMD风振舒适度控制优化设计方法[J].力学与实践,2000,22(3):25-28.
[16]李春祥,熊学玉.高层钢结构TMDs风振舒适度控制最优参数与简化设计[J].振动与冲击,2002,21(2):86-90.
[17]张敏.巨型框架多功能减振结构风振控制研究[D].南京:东南大学,2003.
[18]杨东升,蓝宗建.巨型框架多功能减振结构体系风振响应分析[J].工业建筑,2005,35(1):30-35.
[19]建筑结构荷载规范(GB50009-2001)[S].北京:中国建筑出版社,2002.
[20]高层建筑混凝土结构技术规程(JGJ3-2002)[S].北京:中国建筑出版社,2002.
[21]埃米尔.希缪,罗伯特.H.斯坎伦著(刘尚培,项海帆,谢霁译).风对结构的作用———风工程导论[M].上海:同济大学出版社,1992.
[22]黄本才.结构抗风分析原理及应用[M].上海:同济大学出版社,2001.
[23]AIannuzzi,P Spinelli.Artificial wind generation and structur-al response[J].Journal of Structural Engineering,ASCE,1987,113(10):2382-2398..
[24]张志涌,等.精通MATLAB6.5版[M].北京:航空航天大学出版社,2003.
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