古建筑榫卯节点抗震加固数值模拟研究
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摘要
古建筑木结构榫卯节点的抗震加固方法研究,是保护古建筑工作中一项非常重要的内容。该文以遭受汶川地震的四川省剑阁县觉苑寺大雄宝殿为例,根据宝殿的典型震害症状,采用铁件加固榫卯节点的思路,用数值模拟方法,对结构加固前后的动力特性及地震反应状况进行了对比分析。结果表明:在地震作用下,节点在x、y向的位移及加速度反应均有所减小,结构的变形响应明显减小,数值模拟的结果与结构震害症状基本吻合。采用该方法进行古建筑木结构榫卯节点加固,结构具有更稳定的振动形式。
In order to protect Chinese ancient buildings,Da-xiong Palace in Jueyuan Temple is taken as an example to study its damages by Wenchuan earthquake as well as the strengthening methods on tenon-mortise joints.According to typical damage symptoms by the earthquake,it is considered to strengthen the tenon-moritse joints by iron hooks,and through the numerical simulation,the dynamic characters and earthquake responses of the structure before and after strengthening are compared and studied.The results show that after strengthening,the structure's vibration is more stable and its responses are less under earthquake,so as to be able to resist strong earthquakes.Therefore,the simulation results could accord with the actual damage symptoms of the structure,and also prove in theory that it is feasible to strengthen the tenon-mortise joints by iron hooks for Chinese ancient buildings.
In order to protect Chinese ancient buildings,Da-xiong Palace in Jueyuan Temple is taken as an example to study its damages by Wenchuan earthquake as well as the strengthening methods on tenon-mortise joints.According to typical damage symptoms by the earthquake,it is considered to strengthen the tenon-moritse joints by iron hooks,and through the numerical simulation,the dynamic characters and earthquake responses of the structure before and after strengthening are compared and studied.The results show that after strengthening,the structure's vibration is more stable and its responses are less under earthquake,so as to be able to resist strong earthquakes.Therefore,the simulation results could accord with the actual damage symptoms of the structure,and also prove in theory that it is feasible to strengthen the tenon-mortise joints by iron hooks for Chinese ancient buildings.
引文
[1]周乾.故宫太和殿三次间正身顺梁加固方案设计研究[J].结构工程师,2007,(增):567-573.
[2]周乾,闫维明,杨小森,等.汶川地震古建筑轻度震害研究[J].工程抗震与加固改造,2009,31(5):101-107.
[3]谢启芳.中国木结构古建筑加固的试验研究及理论分析[D].西安:西安建筑科技大学,2007.
[4]于业栓,薛建阳,赵鸿铁.碳纤维布及扁钢加固古建筑榫卯节点抗震性能试验研究[J].世界地震工程,2008,24(3):112-117.
[5]Http://earthquake.usgs.gov/eqcenter/pager/events/us/2008ryan/in-dex.html.
[6]沈聚敏,周锡元,高小旺,等.抗震工程学[M].北京:中国建筑工业出版社,2000.
[7]GB50005-2003.木结构设计规范[S].北京:中国建筑工业出版社,2003.
[8]GB50011-2001.建筑抗震设计规范(2008修订版)[S].北京:中国建筑工业出版社,2008.
[9]赵均海,俞茂宏,杨松岩,等.中国古代木结构有限元动力分析[J].土木工程学报,2000,33(1):32-35.
[10]D.P.Fang,S.Iwasaki,M.H.Yu.Ancient chinese timber architec-ture-I:Experimental study[J].Journal of Structural Engineering,2001,(11):1348-1357.
[11]高大峰,刘经伟,张锁柱,等.西安东岳庙大殿动力特性分析[J].水利与建筑工程学报,2009,7(2):36-38.
[12]姚侃,赵鸿铁,葛鸿鹏.古建木结构榫卯连接特性的试验研究[J].工程力学,2006,23(10):168-172.
[13]刘晶波,杜修力.结构动力学[M].北京:机械工业出版社,2005:118-119.
[14]GB50165-92.古建筑木结构维护与加固技术规范[S].北京:中国建筑工业出版社,1992.
[15]薛素铎,赵均,高向宇.建筑抗震设计(第二版)[M].北京:科学出版社,2007:37-41.
[2]周乾,闫维明,杨小森,等.汶川地震古建筑轻度震害研究[J].工程抗震与加固改造,2009,31(5):101-107.
[3]谢启芳.中国木结构古建筑加固的试验研究及理论分析[D].西安:西安建筑科技大学,2007.
[4]于业栓,薛建阳,赵鸿铁.碳纤维布及扁钢加固古建筑榫卯节点抗震性能试验研究[J].世界地震工程,2008,24(3):112-117.
[5]Http://earthquake.usgs.gov/eqcenter/pager/events/us/2008ryan/in-dex.html.
[6]沈聚敏,周锡元,高小旺,等.抗震工程学[M].北京:中国建筑工业出版社,2000.
[7]GB50005-2003.木结构设计规范[S].北京:中国建筑工业出版社,2003.
[8]GB50011-2001.建筑抗震设计规范(2008修订版)[S].北京:中国建筑工业出版社,2008.
[9]赵均海,俞茂宏,杨松岩,等.中国古代木结构有限元动力分析[J].土木工程学报,2000,33(1):32-35.
[10]D.P.Fang,S.Iwasaki,M.H.Yu.Ancient chinese timber architec-ture-I:Experimental study[J].Journal of Structural Engineering,2001,(11):1348-1357.
[11]高大峰,刘经伟,张锁柱,等.西安东岳庙大殿动力特性分析[J].水利与建筑工程学报,2009,7(2):36-38.
[12]姚侃,赵鸿铁,葛鸿鹏.古建木结构榫卯连接特性的试验研究[J].工程力学,2006,23(10):168-172.
[13]刘晶波,杜修力.结构动力学[M].北京:机械工业出版社,2005:118-119.
[14]GB50165-92.古建筑木结构维护与加固技术规范[S].北京:中国建筑工业出版社,1992.
[15]薛素铎,赵均,高向宇.建筑抗震设计(第二版)[M].北京:科学出版社,2007:37-41.
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