钢管混凝土框架-核心筒减震结构的控制效果研究
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摘要
以一30层钢管混凝土框架-核心筒结构为研究对象,在结构不同位置以不同的连接方式设置相同数量的粘滞阻尼器,形成4种减震方案,并进行了三条地震波作用下的弹塑性时程分析,研究结果表明:在大震作用下,与普通钢管混凝土框架-核心筒结构相比,设置了粘滞阻尼器的结构在层间位移角、层剪力和结构耗能等方面均有一定的控制效果;减震控制效果与粘滞阻尼器的设置位置和连接方式有关,将粘滞阻尼器沿高度均匀地设置于核心筒和框架之间时,减震效果最优.在钢管混凝土框架-核心筒结构中设置粘滞阻尼器不同程度地改善了结构的抗震性能,若对阻尼器的设置方式进行优化,将会最大程度地发挥阻尼器的减震效果.
In this paper,a 30-storey concrete filled steel tube(CFST) frame-core wall mixed structure is studied,which was set with the same number viscous dampers in different locations of structure and different connection types,then four damping schemes were created.Elastic-plastic time-history analyses are performed on structure with different damping schemes under three seismic waves,whilst the calculation results are studied and analyzed comparatively.The results show that under the strong earthquake action,this structure exerts certain control effect on the aspects of inter-story displacement angle,story shear force and energy dissipation of structure by setting the viscous dampers in CFST frame-core wall structure.The damping effect is influenced by the connection types and the setting locations of dampers,and the damping effect is most obvious when the viscous dampers were set evenly between the column and the core wall along the height of structure.In conclusion,the seismic performance of the structure has been improved.If the setting locations and the connection types of the damper could be optimized,the maximum of the damping effect would be achieved in the design of practical engineering.
In this paper,a 30-storey concrete filled steel tube(CFST) frame-core wall mixed structure is studied,which was set with the same number viscous dampers in different locations of structure and different connection types,then four damping schemes were created.Elastic-plastic time-history analyses are performed on structure with different damping schemes under three seismic waves,whilst the calculation results are studied and analyzed comparatively.The results show that under the strong earthquake action,this structure exerts certain control effect on the aspects of inter-story displacement angle,story shear force and energy dissipation of structure by setting the viscous dampers in CFST frame-core wall structure.The damping effect is influenced by the connection types and the setting locations of dampers,and the damping effect is most obvious when the viscous dampers were set evenly between the column and the core wall along the height of structure.In conclusion,the seismic performance of the structure has been improved.If the setting locations and the connection types of the damper could be optimized,the maximum of the damping effect would be achieved in the design of practical engineering.
引文
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[9]REN Feng-ming,ZHOU Yun,DENG Xue-song.Seismic Performance of a Complex High-rise Mixed Structure with Dampers:Experiments.[J]Advanced Science Letters,2011,4:2637-2642..
[10]MANDER J B,PRIESTLEY M J N,PARK R.Observed stress-strain behavior of confined concrete[J].Journal of structural engineering,ASCE,1988,114(8):1827-1849.
[11]韩林海,陶忠,王文达.现代组合结构和混合结构-试验、理论和方法.[M]北京:科学出版社,2009.HAN Lin-hai,TAO Zhong,WANG Wen-da.Advanced Composite and Mixed Structures-Testing,Theory and Design Approach.[M]Beijing:Science Press,2009.
[12]赵宝成,顾强,宋伟,等.钢管混凝土柱交错桁架结构杆件内力试验分析[J]西安建筑科技大学学报:自然科学版,2010,42(3):371-376.ZHAO Bao-cheng,GU Qiang,SONG Wei,et al.Experimental analysis on members internal force of concrete-filled tubular steel column-staggered truss structure[J]J.Xi′an Univ.of Arch.&Tech.:Natural Science Edi-tion,2010,42(3):371-376.
[2]吴迈,余建星,张忠秀.钢-混凝土组合结构体系抗震可靠性分析[J].地震工程与工程振动,2006,26(3):97-99.WU Mai,YU Jian-xing,ZHANG Zhong-xiu.Seismic reliability assessment of steel-concrete hybrid structure[J].Earthquake Engineering and Engineering Vibration,2006,26(3):97-99.
[3]黄忠海,廖耘,李志山,等.珠江新城J2-5地块框架-核心筒超高层结构的罕遇地震弹塑性时程分析[J].结构工程师,2009,25(2):91-97.HUANG Zhong-hai,LIAO Yun,LI Zhi-shan,et al.Elasto-Plastic Time-History Analysis for a Frame-Tube Tall Building in Zhu Jiang Xin Cheng J2-5Plot under Expected Rare Earthquakes[J].Structural Engineers,2009,25(2):91-97.
[4]SOONG T T,DARGUSH G F.Passive Energy Dissipation Systems in Structural Engineering[J].State Universi-ty of New York at Buffalo,USA,1997.
[5]CONSTANTINOU M C,DARGUSH G F,LEE G C,et al.Analysis and Design of Buildings with Added EnergyDissipation Systems[R].MCEER,2002.
[6]钟善桐.钢管混凝土统一理论研究与应用[M].清华大学出版社,2006.ZHONG Shan-tong.CFST unified theory[M].Beijing:Tsinghua University Press,2006.
[7]大住和正,西村胜尚,福本义之,等.使用连接减震结构的超高层钢筋混凝土建筑的反应分析[C]∥第八届中日建筑结构技术交流会.北京,2008,10:601-610.KAZUMASA Oosum,NIMIMURA Katsuhesa,FUKUMOTO Yomiyuki,et al.Analysis of the reaction using the high-rise reinforced concrete buildings connected damping structure[J]∥Exchanges thesis in the building structure and technological of the Eighth Chinese-Japanese.2008,10:601-610.
[8]吕西林,孟春光,田野.消能减震高层方钢管混凝土框架结构振动台试验研究和弹塑性时程分析[J].地震工程与工程振动,2006,26(4):231-238.LXi-lin,MENG Chun-guang,TIAN Ye.Shaking table test and elastic-plastic time history analysis of a high-rise CFRT frame structure with dampers[J].Earthquake Engineering and Engineering Vibration,2006,26(4):231-238.
[9]REN Feng-ming,ZHOU Yun,DENG Xue-song.Seismic Performance of a Complex High-rise Mixed Structure with Dampers:Experiments.[J]Advanced Science Letters,2011,4:2637-2642..
[10]MANDER J B,PRIESTLEY M J N,PARK R.Observed stress-strain behavior of confined concrete[J].Journal of structural engineering,ASCE,1988,114(8):1827-1849.
[11]韩林海,陶忠,王文达.现代组合结构和混合结构-试验、理论和方法.[M]北京:科学出版社,2009.HAN Lin-hai,TAO Zhong,WANG Wen-da.Advanced Composite and Mixed Structures-Testing,Theory and Design Approach.[M]Beijing:Science Press,2009.
[12]赵宝成,顾强,宋伟,等.钢管混凝土柱交错桁架结构杆件内力试验分析[J]西安建筑科技大学学报:自然科学版,2010,42(3):371-376.ZHAO Bao-cheng,GU Qiang,SONG Wei,et al.Experimental analysis on members internal force of concrete-filled tubular steel column-staggered truss structure[J]J.Xi′an Univ.of Arch.&Tech.:Natural Science Edi-tion,2010,42(3):371-376.
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