西安城墙永宁门箭楼振动台试验研究
|
摘要
为了研究明清时期厅堂式木结构的抗震性能,以西安城墙永宁门箭楼为研究对象,按照清工部《工程做法则例》的规制制作了缩尺比为1∶6的局部结构模型,并对其进行了地震模拟振动台试验,分析了模型结构在不同强度模拟地震激励下的动力反应和动力特性。结果表明:随着模拟地震激励的增大,结构的自振频率逐渐衰减,阻尼比逐渐增大;动力放大系数β沿模型高度逐层减小,顶部β的范围为0.166~0.633,说明结构的抗震性能良好;剪力—层间位移滞回曲线饱满,说明模型结构具有较强的耗能能力,其中柱架的耗能能力较强,占滞回耗能总量的91.8%~95.4%,在结构滞回耗能中起主要作用。研究结论对于西安城墙永宁门箭楼复建具有指导意义。
To study the earthquake resistant performance of ancient Chinese timber structures of Ming and Qing dynasty,a partial structure model with the scale ratio of 1: 6 of the embrasure watch-tower of Yongning Gate of Xi'an City wall was made according to the old engineering regulation of Qing dynasty and the shaking table test was carried out. The dynamic responses and the characteristics were analyzed. The test results show that,with the increasing of the input simulated earthquake excitation,natural frequency of the model gets smaller,while the damping ratio increases. The dynamic magnification factor β decreases along height of the model,the range of β at the model top is 0. 166 ~ 0. 633,this phenomenon indicates that the earthquake effects are isolated and reduced. Plump shear force-displacement hysteretic loop accounts for its great ability of energy dissipation. The column frame has more remarkable energy dissipation capacity than that of the Dougong layer,which accounts for 91. 8% ~ 95. 4% of total hysteretic energy dissipation and,plays a major role in hysteretic energy dissipation. The results provide a basis for rebuilding the embrasure watchtower of Yongning Gate of Xi'an City Wall.
To study the earthquake resistant performance of ancient Chinese timber structures of Ming and Qing dynasty,a partial structure model with the scale ratio of 1: 6 of the embrasure watch-tower of Yongning Gate of Xi'an City wall was made according to the old engineering regulation of Qing dynasty and the shaking table test was carried out. The dynamic responses and the characteristics were analyzed. The test results show that,with the increasing of the input simulated earthquake excitation,natural frequency of the model gets smaller,while the damping ratio increases. The dynamic magnification factor β decreases along height of the model,the range of β at the model top is 0. 166 ~ 0. 633,this phenomenon indicates that the earthquake effects are isolated and reduced. Plump shear force-displacement hysteretic loop accounts for its great ability of energy dissipation. The column frame has more remarkable energy dissipation capacity than that of the Dougong layer,which accounts for 91. 8% ~ 95. 4% of total hysteretic energy dissipation and,plays a major role in hysteretic energy dissipation. The results provide a basis for rebuilding the embrasure watchtower of Yongning Gate of Xi'an City Wall.
引文
[1]高大峰,赵鸿铁,薛建阳.中国古代木构建筑抗震机理及抗震加固效果的试验研究[J].世界地震工程,2003,19(2):1-10.GAO Dafeng,ZHAO Hongtie,XUE Jianyang.Experimental study on seismic behavior and strengthened effects of Chinese ancient timber structure[J].World Earthquake Engineering,2003,19(2):1-10.(in Chinese)
[2]薛建阳,赵鸿铁,张鹏程.中国古建筑木结构模型的振动台试验研究[J].土木工程学报,2004,37(6):6-11.XUE Jianyang,ZHAO Hongtie,ZHANG Pengcheng.Study on the seismic behaviors of Chinese ancient wooden building by shaking table test[J].China Civil Engineering Journal,2004,37(6):6-11.(in Chinese)
[3]薛建阳,张风亮,赵鸿铁.碳纤维布加固古建筑木结构模型振动台试验研究[J].土木工程学报,2012,45(11):95-104.XUE Jianyang,ZHANG Fengliang,ZHAO Hongtie.Shaking table test of an ancient timber structure strengthened with CFRP[J].China Civil Engineering Journal,2012,45(11):95-104.(in Chinese)
[4]隋龑,赵鸿铁,薛建阳,等.古代殿堂式木结构建筑模型振动台试验研究[J].建筑结构学报,2010,31(2):35-40.SUI Yan,ZHAO Hongtie,XUE Jianyang,et al.A study on Chinese ancient timber structures by shaking table test[J].Journal of Building Structures,2010,31(2):35-40.(in Chinese)
[5]方东平,俞茂宏,宫本裕,等.木结构古建筑结构特性的实验研究[J].工程力学,2000,17(2):75-83.FANG Dongping,YU Maohong,Y.Miyamoto,et al.Experimental study on structural characteristics of ancient timber architectures[J].Engineering Mechanics,2000,17(2):75-83.(in Chinese)
[6]刘大可.古建筑屋面荷载编汇(上)[J].古建园林技术,2001,19(3):58-64.LIU Dake.The compilation of roof load of ancient building(volume one)[J].Traditional Chinese Architecture and Gardens,2001,19(3):58-64.(in Chinese)
[7]刘大可.古建筑屋面荷载编汇(下)[J].古建园林技术,2001,19(4):56-63.LIU Dake.The Compilation of Roof Load of Ancient Building(volume two)[J].Traditional Chinese Architecture and Gardens,2001,19(4):56-63.(in Chinese)
[8]GB 50011—2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.
[9]R.克拉夫.J.彭津.王光远等译较.结构动力学[M].北京:高等教育出版社,2006.R.W.Clough.J.Penzien.Translated by Wang G Y.Structure dynamics[M].Beijing:Higher Education Press,2006.(in Chinese)
[10]邱法维,钱稼茹,陈志鹏.结构抗震实验方法[M].北京:科学出版社,2000.QIU Fawei,QIAN Jiaru,CHEN Zhipeng.Seismic test methodology for structures[M].Beijing:Science Press,2000.(in Chinese)
[11]秋山宏.基于能量平衡的建筑结构抗震设计[M].北京:清华大学出版社,2010.Akiyama,H.Earthquake resistant design method of buildings based on“energy balance”[M].Beijing:Tsinghua University Press,2001.(in Chinese)
[12]周云.粘滞阻尼减震结构设计[M].武汉:武汉理工大学出版社,2006.ZHOU Yun.The shock absorption design for structures with viscous dampers[M].Wuhan:Wuhan University of Technology Press,2000.(in Chinese)
[2]薛建阳,赵鸿铁,张鹏程.中国古建筑木结构模型的振动台试验研究[J].土木工程学报,2004,37(6):6-11.XUE Jianyang,ZHAO Hongtie,ZHANG Pengcheng.Study on the seismic behaviors of Chinese ancient wooden building by shaking table test[J].China Civil Engineering Journal,2004,37(6):6-11.(in Chinese)
[3]薛建阳,张风亮,赵鸿铁.碳纤维布加固古建筑木结构模型振动台试验研究[J].土木工程学报,2012,45(11):95-104.XUE Jianyang,ZHANG Fengliang,ZHAO Hongtie.Shaking table test of an ancient timber structure strengthened with CFRP[J].China Civil Engineering Journal,2012,45(11):95-104.(in Chinese)
[4]隋龑,赵鸿铁,薛建阳,等.古代殿堂式木结构建筑模型振动台试验研究[J].建筑结构学报,2010,31(2):35-40.SUI Yan,ZHAO Hongtie,XUE Jianyang,et al.A study on Chinese ancient timber structures by shaking table test[J].Journal of Building Structures,2010,31(2):35-40.(in Chinese)
[5]方东平,俞茂宏,宫本裕,等.木结构古建筑结构特性的实验研究[J].工程力学,2000,17(2):75-83.FANG Dongping,YU Maohong,Y.Miyamoto,et al.Experimental study on structural characteristics of ancient timber architectures[J].Engineering Mechanics,2000,17(2):75-83.(in Chinese)
[6]刘大可.古建筑屋面荷载编汇(上)[J].古建园林技术,2001,19(3):58-64.LIU Dake.The compilation of roof load of ancient building(volume one)[J].Traditional Chinese Architecture and Gardens,2001,19(3):58-64.(in Chinese)
[7]刘大可.古建筑屋面荷载编汇(下)[J].古建园林技术,2001,19(4):56-63.LIU Dake.The Compilation of Roof Load of Ancient Building(volume two)[J].Traditional Chinese Architecture and Gardens,2001,19(4):56-63.(in Chinese)
[8]GB 50011—2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.
[9]R.克拉夫.J.彭津.王光远等译较.结构动力学[M].北京:高等教育出版社,2006.R.W.Clough.J.Penzien.Translated by Wang G Y.Structure dynamics[M].Beijing:Higher Education Press,2006.(in Chinese)
[10]邱法维,钱稼茹,陈志鹏.结构抗震实验方法[M].北京:科学出版社,2000.QIU Fawei,QIAN Jiaru,CHEN Zhipeng.Seismic test methodology for structures[M].Beijing:Science Press,2000.(in Chinese)
[11]秋山宏.基于能量平衡的建筑结构抗震设计[M].北京:清华大学出版社,2010.Akiyama,H.Earthquake resistant design method of buildings based on“energy balance”[M].Beijing:Tsinghua University Press,2001.(in Chinese)
[12]周云.粘滞阻尼减震结构设计[M].武汉:武汉理工大学出版社,2006.ZHOU Yun.The shock absorption design for structures with viscous dampers[M].Wuhan:Wuhan University of Technology Press,2000.(in Chinese)
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心