带肘节式连接耗能减震层的超高层结构抗震性能研究
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摘要
以某299.3m超高层框架-核心筒结构为研究对象,针对该工程的自身特点提出了设置屈曲约束支撑、肘节式和人字形连接黏滞阻尼器的3种耗能减震层控制方案。在8度小震作用下,对比分析了不同控制方案对耗能减震层内力突变的减震控制效果,同时对黏滞阻尼器采用肘节式和人字形两种连接方式的耗能率进行对比分析。结果表明,带肘节式连接减震方案能有效地降低耗能减震层位置处的内力突变,减震层位置剪力墙剪力突变幅值的最大降幅达46.2%,大大降低了加强层构件连接部位应力集中效应,验证了黏滞阻尼器采用肘节式连接比人字形连接具有更高的耗能效果,耗能率最大提高133.1%,证明了带肘节式连接耗能减震层对超高层结构抗震的有效性和可行性。
A 299. 3m super tall frame-core tube structure is studied here. According to the characteristics of the project,three control schemes with energy dissipation story are proposed,scheme with buckling restrained brace,scheme with toggle-brace and chevron brace viscous dampers. Comparisons and analysis on damping effect that different control schemes to internal force mutation in energy dissipation story are carried out under 8 degree small earthquake,moreover,the energy consumption rate of viscous damper adopts toggle-brace and chevron brace is compared and analyzed. The results show that,the scheme containing toggle damping brace can reduce internal force mutation in energy dissipation story effectively,the structure shear wall shears mutation amplitude is reduced to46. 2% in strengthened stories,the stress concentration effect in strengthen layer member connecting parts is greatly reduced,the viscous damper that adopts toggle connection has the higher energy dissipation than that adopts chevron connection is verified,the energy dissipation rate is increased by 133. 1%,the validity and feasibility of energy dissipation story containing toggle damping braces to seismic resistance for super high-rise structure are approved.
引文
[1]吴宏磊,丁洁民,崔剑桥,等.超高层建筑结构加强层耗能减震技术及连接节点设计研究[J].建筑结构学报,2014,35(3):8~15Wu Hong-lei,Ding Jie-min,Cui Jian-qiao,et al.Study on Energy Dissipation Technology and Connection Design for Outriggers and Belt Members of Super Highrise Buildings[J].Journal of Building Structures,2014,35(3):8~15(in Chinese)
    [2]徐培福,黄吉锋,肖从真,等.带加强层的框架-核心筒结构抗震设计中的几个问题[J].建筑结构学报,1999,20(4):2~10Xu Pei-fu,Huang Ji-feng,Xiao Cong-zhen,et al.Some Problems in Aseismic Design of Fram-core Wall Structures with Strengthened Storeys[J].Journal of Building Structures,1999,20(4):2~10(in Chinese)
    [3]丁鲲,周云,邓雪松.框架-核心筒结构耗能减震层的减震效果分析[J].工程抗震与加固改造,2007,29(3):35~40Ding Kun,Zhou Yun,Deng Xue-song.Seismic Analysis on Frame-core Wall Structure with Energydissipation Story[J].Earthquake Resistant Engineering and Retrofitting,2007,29(3):35~40(in Chinese)
    [4]邓雪松,丁鲲,周云.耗能减震层对框架-核心筒结构的减震效果及其影响分析[J].工程抗震与加固改造,2008,30(1):1~8Deng Xue-song,Ding Kun,Zhou Yun.Analysis of Seismic Effect and Influence on Frame-core Wall Structure with Seismic Energy-dissipation Story[J].Earthquake Resistant Engineering and Retrofitting,2008,30(1):1~8(in Chinese)
    [5]汪大洋,周云,王绍合.耗能减震层对某超高层结构的减振控制研究[J].振动与冲击,2011,30(2):86~92Wang Da-yang,Zhou Yun,Wang Shao-he.Vibration Reduction for a Super-high Structure with Energy Dissipation Story[J].Journal of Vibration and Shock,2011,30(2):85~92(in Chinese)
    [6]周云.粘滞阻尼减震结构设计[M].武汉:武汉理工大学出版社,2006Zhou Yun.Viscous Damping Structure Design[M].Wuhan:Wuhan University of Technology Press,2006(in Chinese)
    [7]李毅,滕海文,霍达.粘滞阻尼器不同连接方式的减震性能研究[J].工程抗震与加固改造,2008,30(6):60~64Li Yi,Teng Hai-wen,Huo Da.Studies on Aseismic Performance of Energy Dissipation with Viscous Dmper of Various Configurationgs[J].Earthquake Resistant Engineering and Retrofitting,2008,30(6):60~64(in Chinese)
    [8]Constantiou M C,Tsopelas P,Hammel W.Togglebrace-damper Seismic Energy Dissipation System[J].Journal of Structual Engineering,2001,127(2):105~112
    [9]HWANG J S,HUANG Y N,HUNG Y H.Analytical and Experimental Study of Toggle-brace-damper Systems[J].Journal of Structural Engineering,2005,131(7):1035~1043
    [10]谭婉清,董军.设置不同阻尼器的肘节式耗能支撑体系研究[J].防灾减灾工程学报,2007,27(增刊):262~265Tang Wan-qing,Dong Jun.[J].Journal of Disaster Prevention and Mitigation Engineering,2007,27(Sup.):262~265(in Chinese)
    [11]周丰富.新型肘节式耗能支撑体系抗震性能研究[D].南京:南京工业大学,2004Zhou Feng-fu.Studies on Aseismic Performance of Novel Energy Dissipation Toggle-braced Systems[D].Nanjing:Nanjing University of Technology(in Chinese)
    [12]杨志勇,黄吉锋,邵弘.弹性与弹塑性动力时程分析方法中若干问题探讨[J].建筑结构学报,2008,(S1):213~217.Yang Zhi-yong,Huang Ji-feng,Shao Hong.Discussion on Linear and Nonlinear Time History Analysis Method.Journal of Building Structures,2008,(S1):215~217(in Chinese)
    [13]GB50011-2010,建筑抗震设计规范[S]GB50011-2010,Code for Seismic Design of Buildings[S](in Chinese)
    [14]苏志彬.大连国贸大厦中设置加强层问题的研究[D].大连:大连理工大学,2006Su Zhi-bin.The Problems Study on Dalian International Trade Center Using Strenghthend Stories[D].Dalian:Dalian University of Technology,2006(in Chinese)
    [15]丁鲲,周云,邓雪松.带加强层和粘滞耗能减震层的超高层结构地震反应对比分析[J].工程抗震与加固改造,2009,31(1):36~43Ding Kun,Zhou Yun,Deng Xue-song.Seimic Response Analysis of Super High-rise Structure with Strenghthened Story and Viscous Seismic Energy Dissipation Story[J].Earthquake Resistant Engineering and Retrofitting,2009,31(1):36~43(in Chinese)
    [16]张伟,曾德光,刘俊,等.超高层框筒-伸臂结构受力和变形性能探讨[J].建筑结构学报,2008,(S1):169~175Zhang Wei,Zeng De-guang,Liu Jun,et al.Mechanical and Deflection Performance of Fram-tube Structure with Outriggers in Super High-rise Buildings[J]Journal of Building Structures,2008,(S1):169~175(in Chinese)

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