故宫太和殿动力特性常遇地震响应
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摘要
为更好地保护故宫太和殿,采用有限元分析方法,研究了太和殿的动力特性及常遇地震作用下的响应。采用弹簧单元模拟榫卯节点及斗拱构造,并考虑柱础为铰接,建立了太和殿有限元模型。通过模态分析,获得了太和殿基频及主振型;通过对模型进行时程分析,获得了典型节点的位移、加速度响应曲线,以及典型单元的内力响应曲线,评价了太和殿的抗震性能。结果表明:太和殿基频为0.9Hz,主振型以平动为主;常遇地震作用下,太和殿能保持稳定振动状态,结构的内力和变形均在容许范围内,且斗拱及榫卯节点均能发挥一定的减震作用。
To effectively protect the Forbidden City's Tai-he Palace,its dynamic characteristics and seismic responses to frequently occurring earthquakes were studied by finite element analysis methods. Based on hypotheses that tenon-mortise joints and bracket sets were simulated by spring elements,and that column roots were of swivel restriction,a finite element model of Tai-he Palace was built. By modal analysis,the basic frequency and main modes of the palace were obtained; from time-history analysis,displacement and acceleration response curves of typical nodes,and internal force response curves of typical elements were obtained. Analysis shows that basic frequency of Tai-he Palace is 0. 9 Hz and that its main modes are of translation. During frequently occurring earthquakes,the structure vibrates steadily,although its peak displacement as well as internal force response values are within permitted limits. From this,it can be concluded that tenon-mortise joints and bracket sets are helpful for seismic mitigation of of damage to the structure.
引文
[1]Fang D P,Iwasaki S,Yu M H.Ancient Chinese timber architecture-I:Experimental study[J].J Struct Eng,2001,127(11):1348-1357.
    [2]Fang D P,Iwasaki S,Yu M H,et al.Ancient Chinese timber architecture-II:Dynamic characteristics[J].J Struct Eng,2001,127(11):1358-1364.
    [3]周乾,闫维明,周锡元,等.故宫神武门动力特性及地震反应研究[J].工程抗震与加固改造,2009,31(2):90-95.ZHOU Qian,YAN Wei-ming,ZHOU Xi-yuan,et al.Study on dynamical character and seismic response of Shen-wu Gate in the Forbidden City[J].Earthquake Resist Eng Retrofit,2009,31(2):90-95.
    [4]周乾,闫维明,周锡元,等.中国古建筑动力特性及地震反应[J].北京工业大学学报,2010,36(1):13-17.ZHOU Qian,YAN Wei-ming,ZHOU Xi-yuan,et al.Vibration characters and seismic response of Chinese ancient buildings[J].J Beijing Univ Technol,2010,36(1):13-17.
    [5]高大峰,祝松涛,丁新建.西安永宁门箭楼结构及抗震性能分析[J].山东大学学报(工学版),2013,42(2):1-8.GAO Da-Feng,ZHU Song-tao,DING Xin-jian.Analysis of structural and seismic performances of Yongning Gate embrasured watchtower of Xi'an City Wall[J].J Shandong Uni(Eng Sci),2013,42(2):1-8.
    [6]刘晓东.古建筑木结构抗震性能分析[D].西安:西安交通大学,1988:47-48.LIU Xiao-dong.Study on aseismic character of Chinese ancient wooden constitution[D].Xi'an:Xi'an Jiao tong University,1988:47-48.
    [7]姚侃,赵鸿铁.木构古建筑柱柱础的摩擦滑移隔震机理研究[J].工程力学,2006,23(8):127-131.YAO Kan,ZHAO Hong-tie.Study on the mechanism of sliding friction shock isolation between timber column and plinth in historical buildings[J].Eng Mech,2006,23(8):127-131.
    [8]周乾.故宫神武门防震构造研究[J].工程抗震与加固改造,2007,29(6):91-98.ZHOU Qian.Study on antiseismic constitution of Shen-wu Gate inthe Palace Museum[J].Earthquake Resist Eng Retrofit,2007,29(6):91-98.
    [9]周乾,闫维明,周锡元,等.古建筑榫卯节点抗震性能试验[J].振动、测试诊断,2011,31(6):679-684.ZHOU Qian,YAN Wei-ming,ZHOU Xi-yuan,et al.Aseismic behavior of Chinese ancient tenon-mortise joint[J].J Vibrat Meas Diagn,2011,31(6):679-684.
    [10]周乾,闫维明,李振宝,等.古建筑榫卯节点加固方法振动台试验研究[J].四川大学学报(工程科学版),2011,43(6):70-78.ZHOU Qian,YAN Wei-ming,LI Zhen-bao,et al.Aseismic strengthening methods on Chinese ancient tenon-mortise joint by shaking table tests[J].J Sichuan Univ(Eng Sci Ed),2011,43(6):70-78.
    [11]隋,赵鸿铁,薛建阳,等.古建木构斗拱侧向刚度的试验研究[J].世界地震工程,2009,25(4):145-147.SUI Yan,ZHAO Hong-tie,XUE Jian-yang,et al.Experiment study on lateral stiffness of an ancient wooden Dougong[J].World Earthquake Eng,2009,25(4):145-147.
    [12]周乾,张学芹.故宫太和殿西山挑檐檩结构现状分析[C]∥郑欣淼,晋宏逵.中国紫禁城学会论文集第六辑.北京:紫禁城出版社,2011:692-702.ZHOU Qian,ZHANG Xue-qin.Study on structural actuality of western cornice purlin of Tai-he Palace in the Forbidden City[C]∥ZHENG Xin-miao,JIN Hon-kui.Proceedings of Chinese Forbidden City Association(No 6).Beijing:Forbidden City Press,2011:692-70.
    [13]王晓东,王伟,王林安,等.罕遇地震作用下沧州铁狮子结构现状研究[J].工程力学,2011,28(12):238-243.WANG Xiao-dong,WANG Wei,WANG Lin-an,et al.Study on existing situation of Cangzhou iron lion under rear earthquake[J].Eng Mech,2011,28(12):238-243.
    [14]石志敏,周乾,晋宏逵,等.故宫太和殿木构件现状分析及加固方法研究[J].文物保护考古科学,2009,21(1):15-21.SHI Zhi-min,ZHOU Qian,JIN Hong-kui,et al.Study on mechanical problems and strengthening methods on some components of the Tai-he Palace in the Palace Museum[J].Sci Conserv Archeol,2009,21(1):15-21.
    [15]周乾.考虑上部结构附加荷载的古城墙数值模拟[J].科学技术工程,2009,9(22):6891-6895.ZHOU Qian.Simulation on Chinese ancient city walls considering additional loads on the superstructure[J].Sci Technol Eng,2009,9(22):6891-6895.
    [16]四川省建筑科学研究院.GB50165-92.古建筑木结构维护加固技术规范[S].北京:中国建筑工业出版社,1993.Sichuan Institute of Building Research.GB50165-92.Technical code for maintenance and strengthening of ancient timber buildings[S].Beijing:China Archaitecture and Building Press,1993.
    [17]蒋博光.故宫古建筑历经地震状况及防震措施[J].故宫博物院院刊,1983,(4):78-91.JIANG Bo-guang.Earthquakes experiences and corresponding countermeasures of ancient buildings in the Forbidden City[J].Palace Museum J,1983,(4):78-91.

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