| 汶川地震古建筑轻度震害研究 |
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| 引用本文： | 周乾,闫维明,杨小森,纪金豹.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):101-107,92. |
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| 作者姓名： | 周乾 闫维明 杨小森 纪金豹 |
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| 作者单位： | [1]北京工业大学工程抗震与结构诊治北京市重点实验室,北京100022 [2]故宫博物院,北京100009 |
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| 基金项目： | 故宫博物院科研基金资助项目 |
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| 摘 要： | 为保护古建筑,以四川省广元市觉苑寺逍遥楼为例,研究了汶川地震作用下,加固后的古建筑震害症状及抗震性能。根据震后勘查结果,讨论了逍遥楼的典型震害症状。根据木结构榫卯连接特点,建立了结构的有限元模型。通过模态分析,获得了逍遥楼的基频及主振型;通过对汶川波进行调幅并作用于该结构,获得地震作用下结构的内力及位移响应曲线;通过对结构进行7度罕遇地震作用下x、y双向响应谱分析,获得了结构的抗震能力。结果表明：加固后的逍遥楼振动形式以水平振动为主,在汶川地震作用下的震害程度轻,内力及变形响应峰值均在容许值范围内,且能够抵御7度罕遇地震作用。
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| 关 键 词： | 木结构 抗震加固 汶川地震 榫卯节点 地震响应 |
Study on Slight Damage of A Strengthened Chinese Ancient Building Under Wenchuan Earthquake |
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| Zhou Qian,Yan Wei-ming,Yang Xiao-sen,Ji Jin-bao.Study on Slight Damage of A Strengthened Chinese Ancient Building Under Wenchuan Earthquake[J].Earthquake Resistant Engineering and Retrofitting,2009,31(5):101-107,92. |
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| Authors: | Zhou Qian Yan Wei-ming Yang Xiao-sen Ji Jin-bao |
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| Affiliation: | Zhou Qian~(1,2),Yan Wei-ming~1,Yang Xiao-sen~1,Ji Jin-bao~1(1.Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit,Beijing University of Technology,Beijing 100022,China,2.Imperial Palace Museum,Beijing 100009,China) |
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| Abstract: | In order to protect ancient buildings,the Xiao-Yao Palace in Sichuan province is taken as an example to study damage symptoms under Wenchuan earthquake as well as aseismic capacity of strengthened ancient buildings.According to survey results after earthquake,typical damage symptoms of Xiao-Yao Palace is discussed.Then according to characters of tenon-moritse joints of chinese ancient buildings,FEM of the palace is built.By modal analysis,basic frequency as well as main modes of the structure is obtained;By... |
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| Keywords: | wooden constitution aseismic strengthening Wenchuan earthquake tenon-moritse joints dynamic response |
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