分级屈服型金属阻尼器抗震性能研究
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摘要
提出一种由两个不同尺寸的环形金属阻尼器套在一起形成的分级屈服型金属阻尼器。采用低周往复加载试验对其抗震性能进行了全面研究,揭示该阻尼器的分阶段屈服耗能机理与破坏机制,研究其滞回耗能性能、强度和刚度退化性能以及抗疲劳性能。试验结果表明,该阻尼器不仅有效实现分级屈服耗能,而且变形能力强、滞回环饱满稳定、抗疲劳性能优良。通过参数化有限元分析回归得到环形金属阻尼器的初始刚度修正系数,并提出计算分级屈服型阻尼器三折线骨架曲线性能点的计算公式,通过该计算公式获得的骨架曲线与试验结果吻合较好。同时,也可由阻尼器的性能需求确定其几何尺寸。该文的研究成果初步为该新型分级屈服型金属阻尼器在工程中的应用奠定了基础。
In this paper a new type of graded yielding metal damper composed of two annular metal dampers with different sizes was proposed. The seismic performance of the new damper was studied by cyclic loading tests. The failure mechanism and energy-dissipation mechanism of the damper were revealed. The hysteretic energy-dissipation behavior, strength and stiffness degradation, and fatigue resistance of the damper were analyzed. The experimental results show that the damper not only achieves graded yielding function effectively,but also possesses large deformation capability, full hysteretic loops and excellent anti-fatigue performance. The modification coefficient of the initial stiffness of the damper was obtained by parametric finite element analysis and regression analysis. The formulas to determine the performance points in the load-deformation skeleton curve were proposed. The calculated skeleton curves agree well with the experimental results. Accordingly, the geometry of the damper can be determined by the performance requirement. The research results of this study can provide technical support for the engineering application of the new metal damper.
In this paper a new type of graded yielding metal damper composed of two annular metal dampers with different sizes was proposed. The seismic performance of the new damper was studied by cyclic loading tests. The failure mechanism and energy-dissipation mechanism of the damper were revealed. The hysteretic energy-dissipation behavior, strength and stiffness degradation, and fatigue resistance of the damper were analyzed. The experimental results show that the damper not only achieves graded yielding function effectively,but also possesses large deformation capability, full hysteretic loops and excellent anti-fatigue performance. The modification coefficient of the initial stiffness of the damper was obtained by parametric finite element analysis and regression analysis. The formulas to determine the performance points in the load-deformation skeleton curve were proposed. The calculated skeleton curves agree well with the experimental results. Accordingly, the geometry of the damper can be determined by the performance requirement. The research results of this study can provide technical support for the engineering application of the new metal damper.
引文
[1]李爱群.工程结构减振控制[M].北京:机械工业出版社,2007:3―5.Li Aiqun.Structural vibration control[M].Beijing:China Machine Press,2007:3―5.(in Chinese)
[2]缪志伟,宋前恩,李爱群.减震设计与抗震设计RC框架结构抗地震倒塌能力对比[J].工程力学,2016,33(8):24―31.Miao Zhiwei,Song Qianen,Li Aiqun.Comparison of collapse-resistance capacities of RC frames with and without dampers[J].Engineering Mechanics,2016,33(8):24―31.(in Chinese)
[3]李钢,李宏男.基于位移的消能减震结构抗震设计方法[J].工程力学,2007,24(9):88―94.Li Gang,Li Hongnan.Direct displacement-based design for buildings with passive energy dissipation devices[J].Engineering Mechanics,2007,24(9):88-94.(in Chinese)
[4]辛亚军,程树良,王焕定.一种钢铅组合耗能器的滞回模型和减震效果研究[J].工程力学,2010,27(10):74―80.Xin Yajun,Cheng Shuliang,Wang Huanding.Hysteretic model and control effect of a combined steel-lead damper[J].Engineering Mechanics,2010,27(10):74―80.(in Chinese)
[5]Kelly J M,Skinner R I,Heine A J.Mechanisms of energy absorption in special devices for use in earthquake resistant structures[J].Bulletin of NZ Society for Earthquake Engine Annular,1972,5(3):63―88.
[6]Whittaker A S,Bertero V V,Thompson C L,et al.Seismic testing of steel plate energy dissipation devices[J].Earthquake Spectra,1991,7(4):563―604.
[7]Tsai K C,Chen H W,Hong C P,et al.Design of steel triangular plate energy absorbers for seismic-resistant construction[J].Earthquake Spectra,1993,9(3):505―528.
[8]邢书涛,郭迅.一种新型软钢阻尼器力学性能和减震效果的研究[J].地震工程与工程振动,2003,23(6):179―186.Xing Shutao,Guo Xun.Study on mechanical behavior and effectiveness of a new type of mild steel damper[J].Earthquake Engineering and Engineering Dynamics,2003,23(6):179―186.(in Chinese)
[9]苏宇坤,潘鹏,邓开来,等.双向地震作用下U形钢阻尼器力学性能研究[J].建筑结构学报,2014,35(8):44―49.Su Yukun,Pan Peng,Deng Kailai,et al.Mechanical properties of U-shaped steel damper subjected to bi-axial ground motions[J].Journal of Building Structures,2014,35(8):44―49.(in Chinese)
[10]Deng K,Pan P,Wang C.Development of crawler steel damper for bridges[J].Journal of Constructional Steel Research,2013,85:140―150.
[11]李宏男,李钢,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 Hongnan,Li Gang,Li Zhongjun,et al.Earhquake-resistent design of reinforced concrete frame with metallic dampers of‘dual functions’[J].Journal of Building Structures,2007,28(4):36―43.(in Chinese)
[12]徐艳红,李爱群,黄镇.抛物线外形软钢阻尼器试验研究[J].建筑结构学报,2011,32(12):202―209.Xu Yanhong,Li Aiqun,Huang Zhen.Experimental study of mild steel dampers with parabolic shape[J].Journal of Building Structures,2011,32(12):202―209.(in Chinese)
[13]邓开来,潘鹏.变截面软钢剪切阻尼器试验研究[J].工程力学,2016,33(5):82―88.Deng Kailai,Pan Peng.Experimental study of steel shear panel dampers with varying cross-sections[J].Engineering Mechanics,2016,33(5):82―88.(in Chinese)
[14]刘伟庆,缪卓君,王曙光,等.新型分阶段屈服型软钢阻尼器的试验研究及数值模拟[J].振动与冲击,2016,35(3):87―92.Liu Weiqing,Miao Zhuojun,Wang Shuguang,et al.Experiments and numerical prediction on a new type of mild steel damper with separable phases yielding[J].Journal of Vibration and Shock,2016,35(3):87―92.(In Chinese)
[15]李国强,庞梦德,孙飞飞,等.双阶屈服钢连梁联肢墙的参数设计和布置研究[J].建筑钢结构进展,2017,19(1):51―60.Li Guoqiang,Pang Mengde,Sun Feifei,et al.Research on the parameter design and location arrangement of two-level yielding steel coupling beams in coupled shear wall structures[J].Progress in Steel Building Structures,2017,19(1):51―60.(in Chinese)
[16]范圣刚,丁智霞,舒赣平,等.新型两阶段耗能开孔式低屈服点钢耗能装置试验研究[J].东南大学学报:自然科学版,2016,46(1):110―117.Fan Shenggang,Ding Zhixia,Shu Ganping,et al.Experimental study on new open-pore two-stage energy dissipation device with low yield point steel[J].Journal of Southeast University(Natural Science Edition),2016,46(1):110―117.(in Chinese)
[17]陈云,刘涛,蒋欢军,等.多水准减震分级屈服金属阻尼器:中国,ZL 2016 2 1300648.1[P].2016-11-30.Chen Yun,Liu Tao,Jiang Huanjun,et al.Metal dampers with multi-level yield characteristics:China,ZL 2016 21300648.1[P].2016-11-30.(in Chinese)
[18]GB/T 228.1―2010,金属材料拉伸试验第1部分:室温试验方法[S].北京:中国标准出版社,2010.GB/T 228.1―2010,Metallic materials-tensile testingPart1:Method of test at room temperature[S].Beijing:Standards Press of China,2010.(in Chinese)
[19]GB 50011―2010,建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.GB 50011―2010,Code for seismic desgin of buildings[S].Beijing:China Building Industry Press,2010.(in Chinese)
[2]缪志伟,宋前恩,李爱群.减震设计与抗震设计RC框架结构抗地震倒塌能力对比[J].工程力学,2016,33(8):24―31.Miao Zhiwei,Song Qianen,Li Aiqun.Comparison of collapse-resistance capacities of RC frames with and without dampers[J].Engineering Mechanics,2016,33(8):24―31.(in Chinese)
[3]李钢,李宏男.基于位移的消能减震结构抗震设计方法[J].工程力学,2007,24(9):88―94.Li Gang,Li Hongnan.Direct displacement-based design for buildings with passive energy dissipation devices[J].Engineering Mechanics,2007,24(9):88-94.(in Chinese)
[4]辛亚军,程树良,王焕定.一种钢铅组合耗能器的滞回模型和减震效果研究[J].工程力学,2010,27(10):74―80.Xin Yajun,Cheng Shuliang,Wang Huanding.Hysteretic model and control effect of a combined steel-lead damper[J].Engineering Mechanics,2010,27(10):74―80.(in Chinese)
[5]Kelly J M,Skinner R I,Heine A J.Mechanisms of energy absorption in special devices for use in earthquake resistant structures[J].Bulletin of NZ Society for Earthquake Engine Annular,1972,5(3):63―88.
[6]Whittaker A S,Bertero V V,Thompson C L,et al.Seismic testing of steel plate energy dissipation devices[J].Earthquake Spectra,1991,7(4):563―604.
[7]Tsai K C,Chen H W,Hong C P,et al.Design of steel triangular plate energy absorbers for seismic-resistant construction[J].Earthquake Spectra,1993,9(3):505―528.
[8]邢书涛,郭迅.一种新型软钢阻尼器力学性能和减震效果的研究[J].地震工程与工程振动,2003,23(6):179―186.Xing Shutao,Guo Xun.Study on mechanical behavior and effectiveness of a new type of mild steel damper[J].Earthquake Engineering and Engineering Dynamics,2003,23(6):179―186.(in Chinese)
[9]苏宇坤,潘鹏,邓开来,等.双向地震作用下U形钢阻尼器力学性能研究[J].建筑结构学报,2014,35(8):44―49.Su Yukun,Pan Peng,Deng Kailai,et al.Mechanical properties of U-shaped steel damper subjected to bi-axial ground motions[J].Journal of Building Structures,2014,35(8):44―49.(in Chinese)
[10]Deng K,Pan P,Wang C.Development of crawler steel damper for bridges[J].Journal of Constructional Steel Research,2013,85:140―150.
[11]李宏男,李钢,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 Hongnan,Li Gang,Li Zhongjun,et al.Earhquake-resistent design of reinforced concrete frame with metallic dampers of‘dual functions’[J].Journal of Building Structures,2007,28(4):36―43.(in Chinese)
[12]徐艳红,李爱群,黄镇.抛物线外形软钢阻尼器试验研究[J].建筑结构学报,2011,32(12):202―209.Xu Yanhong,Li Aiqun,Huang Zhen.Experimental study of mild steel dampers with parabolic shape[J].Journal of Building Structures,2011,32(12):202―209.(in Chinese)
[13]邓开来,潘鹏.变截面软钢剪切阻尼器试验研究[J].工程力学,2016,33(5):82―88.Deng Kailai,Pan Peng.Experimental study of steel shear panel dampers with varying cross-sections[J].Engineering Mechanics,2016,33(5):82―88.(in Chinese)
[14]刘伟庆,缪卓君,王曙光,等.新型分阶段屈服型软钢阻尼器的试验研究及数值模拟[J].振动与冲击,2016,35(3):87―92.Liu Weiqing,Miao Zhuojun,Wang Shuguang,et al.Experiments and numerical prediction on a new type of mild steel damper with separable phases yielding[J].Journal of Vibration and Shock,2016,35(3):87―92.(In Chinese)
[15]李国强,庞梦德,孙飞飞,等.双阶屈服钢连梁联肢墙的参数设计和布置研究[J].建筑钢结构进展,2017,19(1):51―60.Li Guoqiang,Pang Mengde,Sun Feifei,et al.Research on the parameter design and location arrangement of two-level yielding steel coupling beams in coupled shear wall structures[J].Progress in Steel Building Structures,2017,19(1):51―60.(in Chinese)
[16]范圣刚,丁智霞,舒赣平,等.新型两阶段耗能开孔式低屈服点钢耗能装置试验研究[J].东南大学学报:自然科学版,2016,46(1):110―117.Fan Shenggang,Ding Zhixia,Shu Ganping,et al.Experimental study on new open-pore two-stage energy dissipation device with low yield point steel[J].Journal of Southeast University(Natural Science Edition),2016,46(1):110―117.(in Chinese)
[17]陈云,刘涛,蒋欢军,等.多水准减震分级屈服金属阻尼器:中国,ZL 2016 2 1300648.1[P].2016-11-30.Chen Yun,Liu Tao,Jiang Huanjun,et al.Metal dampers with multi-level yield characteristics:China,ZL 2016 21300648.1[P].2016-11-30.(in Chinese)
[18]GB/T 228.1―2010,金属材料拉伸试验第1部分:室温试验方法[S].北京:中国标准出版社,2010.GB/T 228.1―2010,Metallic materials-tensile testingPart1:Method of test at room temperature[S].Beijing:Standards Press of China,2010.(in Chinese)
[19]GB 50011―2010,建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.GB 50011―2010,Code for seismic desgin of buildings[S].Beijing:China Building Industry Press,2010.(in Chinese)