减轻框架结构地震反应的新型消能减震装置
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摘要
首先,提出了一种减轻框架结构地震反应的新型消能减震装置,在底层框架柱的反弯点下方设置锚固装置,通过锚固装置把钢索、SMA拉索与框架连接起来,并将钢索和SMA拉索锚固在基础上。随后,对该方法进行了理论研究,提出了计算钢索和SMA索变形的公式。最后,通过算例进行地震反应时程分析。研究表明,该装置能够有效地控制结构的位移反应和加速度反应以及耗散输入结构的地震能量,在减轻框架结构地震反应方面具有一定的工程应用价值和前景。
The article first proposed a new energy dissipation device for mitigating seismic responses of frame structures.The anchorage device was set near the inflection points of columns in the first floor,the upper sides of the steel cable and SMA cable were installed in the anchorage device and the other sides of them were fixed in the ground.Subsequently,the theory was studied and the calculation method of the deformation formula of the cables was proposed.Finally,the time-history analysis was studied by ANSYS finite element program.Studies showed that the device can be effectively used to control the structural displacement responses and acceleration responses,dissipating large amounts of earthquake energy.Therefore,the energy dissipation device has an important value and prospects in engineering.
The article first proposed a new energy dissipation device for mitigating seismic responses of frame structures.The anchorage device was set near the inflection points of columns in the first floor,the upper sides of the steel cable and SMA cable were installed in the anchorage device and the other sides of them were fixed in the ground.Subsequently,the theory was studied and the calculation method of the deformation formula of the cables was proposed.Finally,the time-history analysis was studied by ANSYS finite element program.Studies showed that the device can be effectively used to control the structural displacement responses and acceleration responses,dissipating large amounts of earthquake energy.Therefore,the energy dissipation device has an important value and prospects in engineering.
引文
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[9]Mauro Dolce,Donatello Cardone,Roberto Marnetto.Implementation and testing of passive control devicesbased on shape memory alloys[J].Earthquake EngngStruct.Dyn,2000:945-968.
[10]Baz A,Iman K,et al.Active vibration control of flexi-ble beams using shape memory actuator[J].Journal ofSound and Vibration,1990,140(3):437-456.
[11]Krzysztof Wilde,Paolo Gardoni,Yozo Fujino.Base i-solation with shape memory alloy device for elevatedhighway bridges[J].Engineering Structure,2000:222-229.
[12]Mauro Dolce,Donatello Cardone.Mechanical behav-iour of Shape Memory Alloys for seismic applications,Austenite NiTi wires subjected to tension[J].Interna-tional Journal of Mechanical Sciences,2001,43:2657-2677.
[13]笹川和郎.结构的弹塑性稳定内力[M].王松涛,魏钢,译.北京:中国建筑工业出版社,1992.Sasakawa Kazuo.The Internal Forces of Structural Elastic-plastic Stability[M].Wang Songtao,Wei Gang,transla-tion.Beijing:China Architecture and Building Press,1992.
[14]韩林海.钢管混凝土结构理论与实践[M].2版.北京:科学出版社,2007.Han L H.Concrete Filled Steel Tubular Structuresfrom Theory to Practice[M].2nd Edition.Beijing:Science Press,2007.(in Chinese)
[2]中华人民共和国建设部.GB50011—2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.Ministry of Construction of the People’s Republic ofChina.GB 50011—2010 Code for seismic design ofbuildings[S].Beijing:China Architecture andBuilding Press,2010.(in Chinese)
[3]李翔,吕西林,李建中,等.汶川地震中广元市底层框架结构房屋震害调查与分析[J].结构工程师,2008,24(3):12-15.Li Xiang,Lu Xilin,Li Jianzhong,et al.Damage in-vestigation and analysis of multistory masonry build-ings supported by RC frames in Guangyuan after Wen-chuan earthquake[J].Structural Engineering,2008,24(3):12-15.(in Chinese)
[4]陈云,吕西林,蒋欢军.基于形状记忆合金的新型消能减震装置抗震性能研究[J].振动与冲击.已录用(文章编号9225).Chen Yun,Lu Xilin,Jiang Huanjun.Seismic perform-ance study on new energy dissipation devices based onshape memory alloys[J].Journal of Vibration andShock.Accepted.(Article ID:9225).(in Chinese)
[5]王社良.形状记忆合金在结构控制中的应用[M].西安:陕西科学技术出版社,2000.Wang Sheliang.Structural Vibration Control UsingShape Memory Alloys[M].Xi’an:Shanxi Scienceand Technology Press,2000.(in Chinese)
[6]欧进萍.结构振动控制—主动、半主动和智能控制[M].北京:科学出版社,2003.Ou Jinping.Structural Vibration Control-active,Semi-active and Intelligent Control[M].Beijing:Science Press,2003.(in Chinese)
[7]Song G,Ma N,Li H N.Applications of shape memo-ry alloys in civil structures[J].Engineering Struc-tures,2006:1266-1274.
[8]Jin-Ho Roh,In Lee,Jae-Hung Han.Damping char-acteristics of SMA films and their application for pas-sive vibration isolation[J].International Journal ofApplied Electromagnetics and Mechanics,2008,27(3):225-241.
[9]Mauro Dolce,Donatello Cardone,Roberto Marnetto.Implementation and testing of passive control devicesbased on shape memory alloys[J].Earthquake EngngStruct.Dyn,2000:945-968.
[10]Baz A,Iman K,et al.Active vibration control of flexi-ble beams using shape memory actuator[J].Journal ofSound and Vibration,1990,140(3):437-456.
[11]Krzysztof Wilde,Paolo Gardoni,Yozo Fujino.Base i-solation with shape memory alloy device for elevatedhighway bridges[J].Engineering Structure,2000:222-229.
[12]Mauro Dolce,Donatello Cardone.Mechanical behav-iour of Shape Memory Alloys for seismic applications,Austenite NiTi wires subjected to tension[J].Interna-tional Journal of Mechanical Sciences,2001,43:2657-2677.
[13]笹川和郎.结构的弹塑性稳定内力[M].王松涛,魏钢,译.北京:中国建筑工业出版社,1992.Sasakawa Kazuo.The Internal Forces of Structural Elastic-plastic Stability[M].Wang Songtao,Wei Gang,transla-tion.Beijing:China Architecture and Building Press,1992.
[14]韩林海.钢管混凝土结构理论与实践[M].2版.北京:科学出版社,2007.Han L H.Concrete Filled Steel Tubular Structuresfrom Theory to Practice[M].2nd Edition.Beijing:Science Press,2007.(in Chinese)
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