新型开孔H型钢阻尼器有限元分析
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摘要
设计了分别开椭圆形孔和菱形孔的2种新型H型钢耗能器,阐述了它们的构造与耗能原理。采用有限元软件ABAQUS对开椭圆形孔、菱形孔和条形孔这3种新型耗能器的耗能性能进行数值分析,研究了开孔形状、肢宽与肢高等参数对新型耗能器耗能性能的影响。分析结果表明:新型H型钢耗能器具有饱满的滞回曲线,屈服位移较小、耗能性能稳定,耗能器的屈服位移、初始刚度和等效阻尼比随各肢钢板宽度增大(或高度减小)而增大;在开孔率相近或者肢宽相同的情况下,菱形孔H型钢耗能器的等效阻尼比要比条形孔和椭圆形孔的大,且应力分布更加均匀。
Two new types of H-shaped steel dampers with oval and diamond holes,respectively,in webs of the H-shaped steel are proposed in this paper.The structures and energy dissipation principles of the new type dampers are presented.The hysteretic performances of H-shaped steel dampers with oval,diamond and strip holes are analyzed by numerical simulation with ABAQUS platform and then parameter study on hole shapes,limb width and height of the H-shaped steel and so on is conducted in detail.The results show that the H-shaped steel dampers have good and stable energy dissipation performance.Yield displacement,initial stiffness and equivalent damping ratio of the dampers increase with the increasing of width of the steel plate(or decreasing of height of the steel plate).The equivalent damping ratio of the H-shaped steel damper with diamond holes is higher than that of dampers with oval or strip holes and the damper with diamond holes has more uniform stress distribution.
Two new types of H-shaped steel dampers with oval and diamond holes,respectively,in webs of the H-shaped steel are proposed in this paper.The structures and energy dissipation principles of the new type dampers are presented.The hysteretic performances of H-shaped steel dampers with oval,diamond and strip holes are analyzed by numerical simulation with ABAQUS platform and then parameter study on hole shapes,limb width and height of the H-shaped steel and so on is conducted in detail.The results show that the H-shaped steel dampers have good and stable energy dissipation performance.Yield displacement,initial stiffness and equivalent damping ratio of the dampers increase with the increasing of width of the steel plate(or decreasing of height of the steel plate).The equivalent damping ratio of the H-shaped steel damper with diamond holes is higher than that of dampers with oval or strip holes and the damper with diamond holes has more uniform stress distribution.
引文
[1]周云.金属耗能减震结构设计[M].武汉:武汉理工大学出版社,2006.Zhou Y.Design of Energy Dissipation Structure withMetallic Damper[M].Wuhan:Press of WuhanUniversity,2006.
[2]吴从晓,周云,王廷彦.软钢阻尼器的类型与性能及实际工程应用[J].工程抗震与加固改造,2006,28(1):87-94.Wu C X,Zhou Y,Wang T Y.Types andperformance of metallic dampers and their engineeringapplications[J].Earthquake Resistant Engineeringand Retrofitting,2006,28(1):87-94.
[3]Whittaker A S,Bertero V V,ThomNPSon C L,etal.Seismic testing of steel plate energy dissipationdevices[J].Earthquake Spectra,1991,7(4):563-604.
[4]Whittaker A A,Bergman D,Clark P,et al.Coderequirements for designand implementation of passiveenergy dissipation systems[C]∥Proceedings of ATC-17-1 Seminar on Seismic Isolation,Calif:PassiveEnergy Dissipationand Active Control,1993.497-508.
[5]Tsai K C,Hong C P.Steel triangular plate energyabsorber for earthquake resistant buildings[C]∥Proceedings of 1st World Congress on ConstructionalSteel Design.Mexico:World Development,1992.529-538.
[6]Chen H W,Hong C P.Design of steel triangular plateenergy absorbers for seismic-resistant construction[J].Earthquake Spectra,1993,9(3):505-528.
[7]王亚勇,陈清祥,薛彦涛.开孔式软钢阻尼器HADAS之抗震加固工程应用[C]∥抗震加固改造技术第一届学术交流会论文集,昆明:云南大学出版社,2004.674-679.Wang Y Y,Chen Q X,Xue Y T.Seismicreinforcement of engineering applications withPerforated Steel Damper HADAS[C]∥The firstsymposium on seismic retrofitting technology,Kunming:Press of Yunnan University,2004.674-679.
[8]张文元,李姝颖,李东伟.菱形开孔软钢阻尼器及其在结构减震中的模拟分析[J].世界地震工程,2007,23(1):151-155.Zhang W Y,Li Sh Y,Li D W.Simulation analysis onhysteretic behavior and vibration suppression of themild steel damper with the diamond-shaped openingand added damping and stiffness[J].Word EarthquakeEngineering,2007,23(1):151-155.
[9]张文元,张敏政,李东伟.新型加劲软钢阻尼器性能与试验[J].哈尔滨工业大学学报,2008,40(12):1888-1894.Zhang W Y,Zhang M Zh,Li D W.An expermentalresearch on performance and applications of a newtype of mild steel damper added damping and stiffness(ADAS)[J].Journal of Harbin Institute ofTechnology,2008,40(12):1888-1894.
[10]Lee M H,Oh S H,Huh C,et al.Ultimate energy absorptioncapacity of steel plate slit dampers subjected to shear force[J].Steel Structure,2002,2(2):71-79.
[11]李钢,李宏男.新型软钢阻尼器的减震性能研究[J].振动与冲击,2006,25(3):66-72.Li G,Li H N.Study on vibration reduction ofstructure with a new type of metallic dampers[J].Vibration and Shoke,2006,25(3):66-72
[12]李宏男,李刚,李中军,等.钢筋混凝土框架结构利用“双功能”软钢阻尼器的抗震设计[J].建筑结构学报,2007,28(4):36-43.Li H N,Li G,Li Zh J,et al.Earhquake-resistentdesign of reinforced concrete frame with metallicdampers of"dual functions"[J].Journal of BuildingStructure,2007,28(4):36-43.
[13]李钢,李宏男.装有“双功能”软钢阻尼器框架结构振动台试验和分析[J].振动与冲击,2010,29(8):164-168.Li G,Li H N.Shaking table experiment of framestructure with"dual functions"metallic damper[J].Vibration and Shoke,2010,29(8):164-168.
[14]Chan R W K,Albermani F.Experimental study ofsteel slit damper for passive energy dissipation[J].Engineering Structures,2008,30(4):1058-1066.
[15]Ghabraie K,Chan R,Huang X D,et al.Shapoptimization of metallic yielding devices for passivemitigation of seismic energy[J].EngineeringStructures,2010,32(8):2258-2267.
[16]GB/T11263-1998,热轧H型钢和部分T型钢标准[S].
[17]石亦平,周玉蓉.ABAQUS有限元分析实例详解[M].北京:机械工业出版社,2006.51-58.Shi Y P,Zhou Y R.ABAQUS Finite ElementAnalysis of Example Explanation[M].Beijing:Mechanical Industry Press,2006.51-58.
[18]ANSI/SISC 345-05.Seismic Provisions for StructureSteel Buildings[S].American Institute of SteelConstruction,inc.,2006.
[2]吴从晓,周云,王廷彦.软钢阻尼器的类型与性能及实际工程应用[J].工程抗震与加固改造,2006,28(1):87-94.Wu C X,Zhou Y,Wang T Y.Types andperformance of metallic dampers and their engineeringapplications[J].Earthquake Resistant Engineeringand Retrofitting,2006,28(1):87-94.
[3]Whittaker A S,Bertero V V,ThomNPSon C L,etal.Seismic testing of steel plate energy dissipationdevices[J].Earthquake Spectra,1991,7(4):563-604.
[4]Whittaker A A,Bergman D,Clark P,et al.Coderequirements for designand implementation of passiveenergy dissipation systems[C]∥Proceedings of ATC-17-1 Seminar on Seismic Isolation,Calif:PassiveEnergy Dissipationand Active Control,1993.497-508.
[5]Tsai K C,Hong C P.Steel triangular plate energyabsorber for earthquake resistant buildings[C]∥Proceedings of 1st World Congress on ConstructionalSteel Design.Mexico:World Development,1992.529-538.
[6]Chen H W,Hong C P.Design of steel triangular plateenergy absorbers for seismic-resistant construction[J].Earthquake Spectra,1993,9(3):505-528.
[7]王亚勇,陈清祥,薛彦涛.开孔式软钢阻尼器HADAS之抗震加固工程应用[C]∥抗震加固改造技术第一届学术交流会论文集,昆明:云南大学出版社,2004.674-679.Wang Y Y,Chen Q X,Xue Y T.Seismicreinforcement of engineering applications withPerforated Steel Damper HADAS[C]∥The firstsymposium on seismic retrofitting technology,Kunming:Press of Yunnan University,2004.674-679.
[8]张文元,李姝颖,李东伟.菱形开孔软钢阻尼器及其在结构减震中的模拟分析[J].世界地震工程,2007,23(1):151-155.Zhang W Y,Li Sh Y,Li D W.Simulation analysis onhysteretic behavior and vibration suppression of themild steel damper with the diamond-shaped openingand added damping and stiffness[J].Word EarthquakeEngineering,2007,23(1):151-155.
[9]张文元,张敏政,李东伟.新型加劲软钢阻尼器性能与试验[J].哈尔滨工业大学学报,2008,40(12):1888-1894.Zhang W Y,Zhang M Zh,Li D W.An expermentalresearch on performance and applications of a newtype of mild steel damper added damping and stiffness(ADAS)[J].Journal of Harbin Institute ofTechnology,2008,40(12):1888-1894.
[10]Lee M H,Oh S H,Huh C,et al.Ultimate energy absorptioncapacity of steel plate slit dampers subjected to shear force[J].Steel Structure,2002,2(2):71-79.
[11]李钢,李宏男.新型软钢阻尼器的减震性能研究[J].振动与冲击,2006,25(3):66-72.Li G,Li H N.Study on vibration reduction ofstructure with a new type of metallic dampers[J].Vibration and Shoke,2006,25(3):66-72
[12]李宏男,李刚,李中军,等.钢筋混凝土框架结构利用“双功能”软钢阻尼器的抗震设计[J].建筑结构学报,2007,28(4):36-43.Li H N,Li G,Li Zh J,et al.Earhquake-resistentdesign of reinforced concrete frame with metallicdampers of"dual functions"[J].Journal of BuildingStructure,2007,28(4):36-43.
[13]李钢,李宏男.装有“双功能”软钢阻尼器框架结构振动台试验和分析[J].振动与冲击,2010,29(8):164-168.Li G,Li H N.Shaking table experiment of framestructure with"dual functions"metallic damper[J].Vibration and Shoke,2010,29(8):164-168.
[14]Chan R W K,Albermani F.Experimental study ofsteel slit damper for passive energy dissipation[J].Engineering Structures,2008,30(4):1058-1066.
[15]Ghabraie K,Chan R,Huang X D,et al.Shapoptimization of metallic yielding devices for passivemitigation of seismic energy[J].EngineeringStructures,2010,32(8):2258-2267.
[16]GB/T11263-1998,热轧H型钢和部分T型钢标准[S].
[17]石亦平,周玉蓉.ABAQUS有限元分析实例详解[M].北京:机械工业出版社,2006.51-58.Shi Y P,Zhou Y R.ABAQUS Finite ElementAnalysis of Example Explanation[M].Beijing:Mechanical Industry Press,2006.51-58.
[18]ANSI/SISC 345-05.Seismic Provisions for StructureSteel Buildings[S].American Institute of SteelConstruction,inc.,2006.
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