新型框架阻尼填充墙性能分析
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摘要
介绍了新型框架阻尼填充墙的构造方法,并剖析其原理;采用有限元方法分析空框架、普通填充墙框架与阻尼填充墙框架在单调静力荷载作用下的响应,揭示了阻尼填充墙的工作机制,对比研究了阻尼填充墙和普通填充墙的性能差异和优劣,结果表明:框架侧移时,阻尼填充墙的变形主要集中于剪切刚度较小、变形能力良好的粘弹性层,与普通填充墙相比,其变形能力明显提高,受力大为降低;阻尼填充墙能给主体框架提供一定的侧向刚度,有利于小震下结构的位移控制,但其刚度明显低于普通填充墙,能延长结构周期,减小结构在地震中所承受的地震作用。此外,阻尼填充墙对框架侧向变形造成的约束较普通填充墙大为削弱,能延缓主体框架形成塑性铰发生破坏。
The construction method of a damped infill wall(DIW) was presented,and its principle was also analyzed here.Moreover,the behaviors of a bare frame,a frame of a conventional infill wall(CIW) and a frame of DIW under a monotonic-static load were simulated with the finite element method.With the results,the working mechanism of DIW was revealed,and the performances of DIW and CIW were analyzed comparatively.It was shown that the masonry elements of DIW shift horizontally when its surrounding sways,and the deformation of DIW mainly focuses on its softer visco-elastic layers;by comparison with CIW,DIW has marked improvements in deformation capacity and bears much smaller force;DIW can provide a certain lateral stiffness to its frame,it is beneficial to the structural displacement control under small earthquakes;but its lateral stiffness is much lower than that of CIW,it means that DIW can prolong a structure's period notably and reduce the seismic action during earthquakes;furthermore,DIW produces a much weaker constraint to the lateral deformation of its frame than CIW does,and it can delay the destruction of the framework with the formation of plastic hinges.
The construction method of a damped infill wall(DIW) was presented,and its principle was also analyzed here.Moreover,the behaviors of a bare frame,a frame of a conventional infill wall(CIW) and a frame of DIW under a monotonic-static load were simulated with the finite element method.With the results,the working mechanism of DIW was revealed,and the performances of DIW and CIW were analyzed comparatively.It was shown that the masonry elements of DIW shift horizontally when its surrounding sways,and the deformation of DIW mainly focuses on its softer visco-elastic layers;by comparison with CIW,DIW has marked improvements in deformation capacity and bears much smaller force;DIW can provide a certain lateral stiffness to its frame,it is beneficial to the structural displacement control under small earthquakes;but its lateral stiffness is much lower than that of CIW,it means that DIW can prolong a structure's period notably and reduce the seismic action during earthquakes;furthermore,DIW produces a much weaker constraint to the lateral deformation of its frame than CIW does,and it can delay the destruction of the framework with the formation of plastic hinges.
引文
[1]Calvi G M,Bolognini D.Seismic response of reinforced concrete frames infilled with weakly reinforced masonry panels[J].Journal of Earthquake Engineering,2001,5(2):153-185.
[2]Kakaletsis D.Comparison of CFRP and alternative seismic retrofitting techniques for bare and infilled RC frames[J].Journal of Composites for Construction,2010(11):1-39.
[3]Mohammadi M Gh.Stiffness and damping of single and multi-layer infilled steel frames[J].Journal of ICE Structures and Buildings,2007(16):105-118.
[4]Mohammadi M,Akrami V,Mohammadi-Ghazi R.Methods to Improve Infilled Frame Ductility[J].Journal of Structural Engineering,2011,137(6):646-653.
[5]姚谦峰.一种用于框架结构的新型耗能减震填充墙板[P].中国专利:CN101476360A,2009-07-08.
[6]Sinan Altin,Ozgur,etc.An experimental study on str-engthening of masonry infilled RC frames using diagonal CFRP strips[C].http://www.Sciencedirect.com,2008,PartB(39):680-693.
[7]周云,彭水淋,郭阳照,等.提高框架填充墙结构抗震性能的新途径和新方法[J].防灾减灾工程学报,2011,31(5):469-476.ZHOU Yun,PENG Shui-lin,GUO Yang-zhao,et al.New ways methods to improve the seismic performance of frame structures with infilled walls[J].Journal of Disaster Prevention and Mitigation Engineering,2011,31(5):469-476.
[8]田志昌,韩建忠,朱梅生.耗能填充墙框架的设计和实验[J].包头钢铁学院学报,1997,16(4):294-298.TIAN Zhi-chang,HAN Jian-zhong,ZHU Mei-sheng.Design and experiment of energy dissipating wall filled in frames[J].Journal of Baotou University Of Iron and Steel Technology,1997,(4):294-298.
[9]Sahota M K,Riddington J R.Experimental investigation into using lead to reduce vertical load transfer in infilled frames[J].Engineering Structures,2001(23):94-101.
[10]瞿伟廉,盛克苏,李肇胤.设置耗能横缝的填充墙对多层框架地震反应的控制[J].建筑结构学报,1991,12(2):42-50.QU Wei-lian,CHENG Ke-su,LI Zhao-yin.Control ofearthquake responses of multistory frame structures by filler wall with horizontal energy dissipation slit[J].Journal of Building Structures,1991,12(2):42-50.
[11]Mohammadi M,Akrami V.An engineered infilled frame:behavior and calibration[J].Journal of Constructional Steel Research,2010(66):842-849.
[12]Mohammad A,Ali M M.Analysis of masonry infilled steel frames with seismic isolator subframes[J].Engineering Structures,2005(27):487-500.
[13]杨树标,刘建平,李荣华,等.柔性连接填充墙框架结构模型振动台试验研究[J].工业建筑,2008,38(增刊):268-270.YANG Shu-biao,LIU Jian-ping,LI Rong-hua,et al.Shaking table test of RC frame with flexible connection infill wall[J].Industrial Building,2008,38(sup):268-270.
[14]黄炜,王猛,卢俊龙,等.MTMD-耗能框架填充墙减震数值分析[J].振动与冲击,2012,31(4):86-91.HUANG Hui,WANG Meng,LU Jun-long,et al.Umerical analysis on shock absorption and damping effect of frame structure-MTMD[J].Journal of Vibration and Shock,2012,31(4):86-91.
[15]周云,郭阳照.一种用于框架结构的阻尼抗震填充墙板[P]中国专利:CN102268900A,2011.06.11.
[16]Richardson J.The behavior of masonry infilled panels in steel frames[D].NB Canada;University of New Brunswick,Frebericton,1986.
[17]王作龄.减震装置用低弹性模量高阻尼橡胶的开发[J].世界橡胶工业,2007,34(11):22-25.WANG Zuo-ling.Development of high damping rubber with low elastic modulus for shock absorption device[J].World rubber industry,2007,34(11):22-25.
[18]Singh H,Paul D K,Sastry V V.Inelastic dynamic response of reinforced concrete infilled frames[J].Comput&Structures,1998(69):685-693.
[19]El-Dakhakhni W W,Elgaaly M,Hamid A A.Three-strut model for concrete masonry-infilled steel frames[J].Journal of Structural Engineering,2003(129):177-185.
[20]Ghosh A K,Amde A M.Finite element analysis of infilled frames[J].Struct Engineerin,2002,128(7):881-889.
[21]朱伯龙.砌体结构设计原理[M].上海:同济大学出版社,1998.
[22]Mohebkhah A,Moghadam T.Nonlinear analysis of masonry-infilled steel frames with openings using discrete element method[J].Constructional Steel Research,2008(64):1463-1472.
[23]杨挺青.黏弹性理论与应用[M].北京:科学出版社,2004.
[24]Binici B,Ozcebe G.Analysis of infilled reinforced frames strengthened with FRPS[J].Advances in Engineering for Urban Risk Reduction,2006(S):455-470.
[25]Asteris,Antoniou,Sophianopoulos and Chrysostomou.Mathe-matical Macro-Modeling of Infilled Frames:State-of-the-Art[J].Ournal of Structural Engineering,2011:1-45.
[26]JGJ101-96,建筑抗震试验方法规程[S].
[27]Guidelines and commentary for the seismic rehabilitation of buildings[S].FEMA273&274,1998.
[2]Kakaletsis D.Comparison of CFRP and alternative seismic retrofitting techniques for bare and infilled RC frames[J].Journal of Composites for Construction,2010(11):1-39.
[3]Mohammadi M Gh.Stiffness and damping of single and multi-layer infilled steel frames[J].Journal of ICE Structures and Buildings,2007(16):105-118.
[4]Mohammadi M,Akrami V,Mohammadi-Ghazi R.Methods to Improve Infilled Frame Ductility[J].Journal of Structural Engineering,2011,137(6):646-653.
[5]姚谦峰.一种用于框架结构的新型耗能减震填充墙板[P].中国专利:CN101476360A,2009-07-08.
[6]Sinan Altin,Ozgur,etc.An experimental study on str-engthening of masonry infilled RC frames using diagonal CFRP strips[C].http://www.Sciencedirect.com,2008,PartB(39):680-693.
[7]周云,彭水淋,郭阳照,等.提高框架填充墙结构抗震性能的新途径和新方法[J].防灾减灾工程学报,2011,31(5):469-476.ZHOU Yun,PENG Shui-lin,GUO Yang-zhao,et al.New ways methods to improve the seismic performance of frame structures with infilled walls[J].Journal of Disaster Prevention and Mitigation Engineering,2011,31(5):469-476.
[8]田志昌,韩建忠,朱梅生.耗能填充墙框架的设计和实验[J].包头钢铁学院学报,1997,16(4):294-298.TIAN Zhi-chang,HAN Jian-zhong,ZHU Mei-sheng.Design and experiment of energy dissipating wall filled in frames[J].Journal of Baotou University Of Iron and Steel Technology,1997,(4):294-298.
[9]Sahota M K,Riddington J R.Experimental investigation into using lead to reduce vertical load transfer in infilled frames[J].Engineering Structures,2001(23):94-101.
[10]瞿伟廉,盛克苏,李肇胤.设置耗能横缝的填充墙对多层框架地震反应的控制[J].建筑结构学报,1991,12(2):42-50.QU Wei-lian,CHENG Ke-su,LI Zhao-yin.Control ofearthquake responses of multistory frame structures by filler wall with horizontal energy dissipation slit[J].Journal of Building Structures,1991,12(2):42-50.
[11]Mohammadi M,Akrami V.An engineered infilled frame:behavior and calibration[J].Journal of Constructional Steel Research,2010(66):842-849.
[12]Mohammad A,Ali M M.Analysis of masonry infilled steel frames with seismic isolator subframes[J].Engineering Structures,2005(27):487-500.
[13]杨树标,刘建平,李荣华,等.柔性连接填充墙框架结构模型振动台试验研究[J].工业建筑,2008,38(增刊):268-270.YANG Shu-biao,LIU Jian-ping,LI Rong-hua,et al.Shaking table test of RC frame with flexible connection infill wall[J].Industrial Building,2008,38(sup):268-270.
[14]黄炜,王猛,卢俊龙,等.MTMD-耗能框架填充墙减震数值分析[J].振动与冲击,2012,31(4):86-91.HUANG Hui,WANG Meng,LU Jun-long,et al.Umerical analysis on shock absorption and damping effect of frame structure-MTMD[J].Journal of Vibration and Shock,2012,31(4):86-91.
[15]周云,郭阳照.一种用于框架结构的阻尼抗震填充墙板[P]中国专利:CN102268900A,2011.06.11.
[16]Richardson J.The behavior of masonry infilled panels in steel frames[D].NB Canada;University of New Brunswick,Frebericton,1986.
[17]王作龄.减震装置用低弹性模量高阻尼橡胶的开发[J].世界橡胶工业,2007,34(11):22-25.WANG Zuo-ling.Development of high damping rubber with low elastic modulus for shock absorption device[J].World rubber industry,2007,34(11):22-25.
[18]Singh H,Paul D K,Sastry V V.Inelastic dynamic response of reinforced concrete infilled frames[J].Comput&Structures,1998(69):685-693.
[19]El-Dakhakhni W W,Elgaaly M,Hamid A A.Three-strut model for concrete masonry-infilled steel frames[J].Journal of Structural Engineering,2003(129):177-185.
[20]Ghosh A K,Amde A M.Finite element analysis of infilled frames[J].Struct Engineerin,2002,128(7):881-889.
[21]朱伯龙.砌体结构设计原理[M].上海:同济大学出版社,1998.
[22]Mohebkhah A,Moghadam T.Nonlinear analysis of masonry-infilled steel frames with openings using discrete element method[J].Constructional Steel Research,2008(64):1463-1472.
[23]杨挺青.黏弹性理论与应用[M].北京:科学出版社,2004.
[24]Binici B,Ozcebe G.Analysis of infilled reinforced frames strengthened with FRPS[J].Advances in Engineering for Urban Risk Reduction,2006(S):455-470.
[25]Asteris,Antoniou,Sophianopoulos and Chrysostomou.Mathe-matical Macro-Modeling of Infilled Frames:State-of-the-Art[J].Ournal of Structural Engineering,2011:1-45.
[26]JGJ101-96,建筑抗震试验方法规程[S].
[27]Guidelines and commentary for the seismic rehabilitation of buildings[S].FEMA273&274,1998.
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