新型形状记忆合金阻尼器在古塔抗震加固中的应用与优化分析
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摘要
利用形状记忆合金(SMA)的超弹性滞回耗能特性,根据古塔的受力和主要灾变特点设计提出一种适合古塔的新型SMA阻尼器。通过试验得出该阻尼器的双线性恢复力模型,利用MATLAB提供的Simulink模块建立仿真模型,数值分析某古塔模型原型结构和加SMA阻尼器结构的地震反应。仿真结果表明:新型SMA阻尼器能有效降低古塔的地震反应。并对新型SMA阻尼器在古塔中布置的数量和位置进行了优化分析,为SMA阻尼器被动控制系统在古塔等类似古建筑结构中的实际应用和设计提供借鉴。
Shape memory alloy(SMA) has super-elastic hysteresis behavior.Recognizing this,a new type SMA damper which is fit for ancient tower is proposed.The bi-linear restoring force model of the new type SMA damper is determined by experiment.A simulation model is built by using the Simulink block in MATLAB.And the seismic responses of an ancient tower model are investigated under the antetype structure and the structure installed the SMA damper.Simulation results show that the SMA damper can reduce seismic response of the ancient tower effectively.Through the optimization analysis of different quantity and location of the SMA damper in the ancient tower,it provides reference of application and design in SMA damper passive control system for ancient tower and similarly ancient architectures.
Shape memory alloy(SMA) has super-elastic hysteresis behavior.Recognizing this,a new type SMA damper which is fit for ancient tower is proposed.The bi-linear restoring force model of the new type SMA damper is determined by experiment.A simulation model is built by using the Simulink block in MATLAB.And the seismic responses of an ancient tower model are investigated under the antetype structure and the structure installed the SMA damper.Simulation results show that the SMA damper can reduce seismic response of the ancient tower effectively.Through the optimization analysis of different quantity and location of the SMA damper in the ancient tower,it provides reference of application and design in SMA damper passive control system for ancient tower and similarly ancient architectures.
引文
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[2]Castellano M G,et al.Application of Seismic Devices toItalian Cultural Heritage structures[A.]7thInternational Seminar on Seismic Isolation,Passive Energy Dissipation and Active Control of Vibrations ofStructures,2001:728～737
[3]罗哲文.中国古塔[M.]北京:中国青年出版社,1985Luo Zhe-wen.China Ancient Tower[M.]Beijing:China Youth Press,1985(in Chinese)
[4]傅熹年.中国古代建筑史[M.]北京:中国建筑工业出版社,2001Fu Xi-nian.China Ancient Architecture History[M.]Beijing:China Architecture and Building Press,2001(in Chinese)
[5]许华铛.中国古塔[M.]北京:中国轻工业出版社,1986Xu Hua-dang.China Ancient Tower[M.]Beijing:China Light Industry Press,1986(in Chinese)
[6]舟久保,熙康.形状记忆合金[M.]北京:机械工业出版,1992Zhou Jiu-bao,Xi Kang.Shape Memory Alloy[M.]Beijing:China Machine Press,1992(in Chinese)
[7]杨杰,吴月华.形状记忆合金及其应用[M.]北京:中国科学技术大学出版社,1993Yang Jie,Wu Yue-hua.Shape Memory Alloy and ItsApplication[M].Beijing:University of Science andTechnology of China Press,1993(in Chinese)
[8]Robert K,Jack H,Steve S.Structure damping withshape memory alloys:a class of device[A.]Proc.ofSPIC[C],1995,2445:225～249
[9]倪立峰,李秋胜,李爱群,韩玉林.新型形状记忆合金阻尼器的试验研究[J.]地震工程与工程振动,2002,22(3):145～148Ni Li-feng,Li Qiu-sheng,Li Ai-qun,Han Yu-lin.Investigation and experiment of damper based on shapememory alloy(SMA)[J.]Earthquake Engineering andEngineering Vibration,2002,22(3):145～148(inChinese)
[10]薛素铎,董军辉,卞晓芳,李彬双.一种新型形状记忆合金阻尼器[J].建筑结构学报,2005,26(3):45～50Xue Su-duo,Dong Jun-hui,Bian Xiao-fang,Li Bin-shuang.A new type of shape memory damper[J].Journal of Building Structures,2005,26(3):45～50(in Chinese)
[11]薛建阳,赵鸿铁,杨勇.底部两层框架-抗震墙砌体房屋的动力计算模型及侧向刚度控制[J.]力学季刊,2002,23(4):583～588Xue Jian-yang,Zhao Hong-tie,Yang Yong.Study ondynamic calculation model and lateral stiffness control ofmasonry structure with concrete frame-shear wall at lowertwo stories[J.]Chinese Quarterly Mechanics,2002,23(4):583～588(in Chinese)
[12]刘致平.中国伊斯兰教建筑[M.]乌鲁木齐:新疆人民出版社,1985Liu Zhi-ping.Islamic Architecture[M.]Urumchi:Xinjiang Peoples Press,1985(in Chinese)
[13]怀圣寺光塔检测报告[R.]广州:广州大学工程抗震研究中心,2005.3Examination Report of Guan Tower in Huaisheng Temple[R.]Guangzhou:Earthquake Engineering Research&Test Center,Guangzhou University,2005,3(in Chinese)
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