单斜杆耗能器偏心支撑结构的抗震性能研究
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摘要
该文针对偏心支撑结构存在的不足,提出一种新型的框架支撑形式——耗能器偏心支撑。该文采用1:3缩尺模型,进行了拟静力试验,并利用ANSYS有限元分析程序建立了有限元分析模型,将该新型耗能器偏心支撑结构进行了试验研究和理论分析比较。得出结论:该新型框架支撑形式不仅可以减少耗能梁段吸收的地震能量,也可以减小耗能梁段的破坏程度,从而减少震后修复工作量;并且具有很好的变形能力和足够的抗侧移能力。同时也给出了设计方法,并提出了改进措施。
Considering the defect of eccentrically braced steel frames,a new braced steel frame system is suggested,which is energy dissipating eccentrically braced steel frames.The experimental data is achieved by a specimen under a cyclic loading,which is verified by nonlinear finite element analyses.Results indicate that the new system may reduce earthquake input energy and breakage of the link,reduce the repairing load of beams and floors and costs after an earthquake,and have preferable ductility and enough lateral stiffness.Meanwhile,some design and amended measures are recommended for the new type protocol.
Considering the defect of eccentrically braced steel frames,a new braced steel frame system is suggested,which is energy dissipating eccentrically braced steel frames.The experimental data is achieved by a specimen under a cyclic loading,which is verified by nonlinear finite element analyses.Results indicate that the new system may reduce earthquake input energy and breakage of the link,reduce the repairing load of beams and floors and costs after an earthquake,and have preferable ductility and enough lateral stiffness.Meanwhile,some design and amended measures are recommended for the new type protocol.
引文
[1]Taichiro Okazaki BE ME MA.Seismic performance of link-to-column connections in steel eccentrically bracedframes[D].Proquest Information and Learning Company:The University of Texas of Austin,2004.
[2]钱稼茹,陈茂盛,张天申.偏心支撑钢框架在水平力作用下试验研究和极限分析[J].建筑结构,1993,23(4):3―9.Qian Jiaru,Chen Maosheng,Zhang Tianshen.Experimental study and limit state analysis of eccentric-braced frames under horizontal action[J].Building Structure,1993,23(4):3―9.(in Chinese)
[3]赵宝成,顾强.偏心支撑钢框架在循环荷载作用下非线性有限元分析[J].土木工程学报,2005,38(2):27―31.Zhao Baocheng,Gu Qiang.Nonlinear finite element analysis for eccentrically braced steel frames under cyclic load[J].China Civil Engineering Journal,2005,38(2):27―31.(in Chinese)
[4]申永康,万斌,邵建华.偏心支撑钢框架延性抗震设计探讨[J].工程抗震与加固改造,2007,29(2):47―50.Shen Yongkang,Wan Bin,Shao Jianhua.Seismic design on eccentrically braced steel frame system[J].Earthquake resistant engineering and retrofitting,2007,29(2):47―50.(in Chinese)
[5]Taichiro Okazaki,Michael D Engelhardt.Cyclic loading behavior of EBF links constructed of ASTM A992steel[J].Journal of Constructional Steel Research,2007,63:751―765.
[6]Jeffrey W Berman,Michel Bruneau.Experimental and analytical investigation of tubular links for eccentrically braced frames[J].Engineering Structures,2007,29:1929―1938.
[7]Rossi P P,Lombardo A.Influence of the link overstrength factor on the seismic behavior of eccentrically braced frames[J].Journal of Constructional Steel Research,2007,63:1529―1545.
[8]郝际平,潘秀珍,谢振清.一种偏心支撑[P].中华人民共和国:ZL200610043128.1,2008.2.6.Hao Jiping,Pan Xiuzhen,Xie Zhenqing.One type of eccentrically braced frames[P].People’s Republic of China Ministry of Construction:ZL200610043128.1,2008.2.6.(in Chinese)
[9]GB50011-2001,建筑抗震设计规范[S].北京:中国建筑工业出版社,2001.GB50011-2001,Code for seismic design of building[S].Beijing:China Architecture Industry Press,2001.(in Chinese)
[10]申林,蔡益燕,郁银泉.偏心支撑钢框架设计方法[J].建筑结构,2002,32(2):13―16.Shen Lin,Cai Yiyan,Yu Yinquan.Design method of eccentrically braced frames[J].Building Structure,2002,32(2):13―16.(in Chinese)
[11]欧进萍,吴斌,龙旭.耗能减振结构的抗震设计方法[J].地震工程与工程振动,1998,18(2):98―107.Ou Jinping,Wu Bin,Long Xu.A seismic methods of passive energy dissipation systems[J].Earthquake Engineering and Engineering Vibration,1998,18(2):98―107.(in Chinese)
[12]吴曙光,常业军.粘弹性消能减震结构设计参数研究[J].工程抗震与加固改造,2005,27(4):37―39.Wu Shuguang,Chang Yejun.Study on design parameters of engineering structure using viscoelastic dampers[J].Earthquake Resistant Engineering and Retrofitting,2005,27(4):37―39.(in Chinese)
[13]JGJ101-96,建筑抗震试验方法规程[S].北京:中国建筑工业出版社,1997.JGJ101-96,Specification of testing methods for earthquake resistant building[S].Beijing:China Architecture Industry Press,1997.(in Chinese)
[14]James O Malley,Egor P Popov.Shear links in eccentrically braced frames[J].Journal of Structural Engineering,1984,110(9):2275―2295.
[2]钱稼茹,陈茂盛,张天申.偏心支撑钢框架在水平力作用下试验研究和极限分析[J].建筑结构,1993,23(4):3―9.Qian Jiaru,Chen Maosheng,Zhang Tianshen.Experimental study and limit state analysis of eccentric-braced frames under horizontal action[J].Building Structure,1993,23(4):3―9.(in Chinese)
[3]赵宝成,顾强.偏心支撑钢框架在循环荷载作用下非线性有限元分析[J].土木工程学报,2005,38(2):27―31.Zhao Baocheng,Gu Qiang.Nonlinear finite element analysis for eccentrically braced steel frames under cyclic load[J].China Civil Engineering Journal,2005,38(2):27―31.(in Chinese)
[4]申永康,万斌,邵建华.偏心支撑钢框架延性抗震设计探讨[J].工程抗震与加固改造,2007,29(2):47―50.Shen Yongkang,Wan Bin,Shao Jianhua.Seismic design on eccentrically braced steel frame system[J].Earthquake resistant engineering and retrofitting,2007,29(2):47―50.(in Chinese)
[5]Taichiro Okazaki,Michael D Engelhardt.Cyclic loading behavior of EBF links constructed of ASTM A992steel[J].Journal of Constructional Steel Research,2007,63:751―765.
[6]Jeffrey W Berman,Michel Bruneau.Experimental and analytical investigation of tubular links for eccentrically braced frames[J].Engineering Structures,2007,29:1929―1938.
[7]Rossi P P,Lombardo A.Influence of the link overstrength factor on the seismic behavior of eccentrically braced frames[J].Journal of Constructional Steel Research,2007,63:1529―1545.
[8]郝际平,潘秀珍,谢振清.一种偏心支撑[P].中华人民共和国:ZL200610043128.1,2008.2.6.Hao Jiping,Pan Xiuzhen,Xie Zhenqing.One type of eccentrically braced frames[P].People’s Republic of China Ministry of Construction:ZL200610043128.1,2008.2.6.(in Chinese)
[9]GB50011-2001,建筑抗震设计规范[S].北京:中国建筑工业出版社,2001.GB50011-2001,Code for seismic design of building[S].Beijing:China Architecture Industry Press,2001.(in Chinese)
[10]申林,蔡益燕,郁银泉.偏心支撑钢框架设计方法[J].建筑结构,2002,32(2):13―16.Shen Lin,Cai Yiyan,Yu Yinquan.Design method of eccentrically braced frames[J].Building Structure,2002,32(2):13―16.(in Chinese)
[11]欧进萍,吴斌,龙旭.耗能减振结构的抗震设计方法[J].地震工程与工程振动,1998,18(2):98―107.Ou Jinping,Wu Bin,Long Xu.A seismic methods of passive energy dissipation systems[J].Earthquake Engineering and Engineering Vibration,1998,18(2):98―107.(in Chinese)
[12]吴曙光,常业军.粘弹性消能减震结构设计参数研究[J].工程抗震与加固改造,2005,27(4):37―39.Wu Shuguang,Chang Yejun.Study on design parameters of engineering structure using viscoelastic dampers[J].Earthquake Resistant Engineering and Retrofitting,2005,27(4):37―39.(in Chinese)
[13]JGJ101-96,建筑抗震试验方法规程[S].北京:中国建筑工业出版社,1997.JGJ101-96,Specification of testing methods for earthquake resistant building[S].Beijing:China Architecture Industry Press,1997.(in Chinese)
[14]James O Malley,Egor P Popov.Shear links in eccentrically braced frames[J].Journal of Structural Engineering,1984,110(9):2275―2295.
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