| 三跨飞燕式异型钢管混凝土拱桥地震反应及控制 |
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| 引用本文： | 李勇,闫维明,陈彦江,李晰.三跨飞燕式异型钢管混凝土拱桥地震反应及控制[J].工程抗震与加固改造,2011,33(1):72-79. |
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| 作者姓名： | 李勇 闫维明 陈彦江 李晰 |
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| 作者单位： | 北京工业大学工程抗震与结构诊治北京市重点实验室; |
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| 基金项目： | 国家自然科学基金项目(90715032、50978009); 北京市教委科技计划重点项目(KZ200910005002) |
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| 摘 要： | 利用ANSYS有限元软件,计算并分析了某三跨飞燕式异型钢管混凝土拱桥的动力特性和一致激励与行波激励下的动力响应,并对拟安装在桥上Lock-up装置的减震效果进行了评价.研究表明,纵向和竖向联合输入下结构的动力反应明显高于纵向和竖向单独输入工况;横向地震激励时,拱肋出平面位移及内力均很大,但可以不考虑行波效应的影响;纵向...
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| 关 键 词： | 异型钢管混凝土拱桥 行波效应 Lock-up装置 减震控制 |
Seismic Response Analysis and Control of A Three-span Irregular Flying Swallow Type of CFST Arch Bridge under Seismic Excitation |
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| Li Yong,Yan Wei-ming,Chen Yan-jiang,Li Xi.Seismic Response Analysis and Control of A Three-span Irregular Flying Swallow Type of CFST Arch Bridge under Seismic Excitation[J].Earthquake Resistant Engineering and Retrofitting,2011,33(1):72-79. |
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| Authors: | Li Yong Yan Wei-ming Chen Yan-jiang Li Xi |
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| Affiliation: | Li Yong,Yan Wei-ming,Chen Yan-jiang,Li Xi(Beijing Laboratory of Earthquake Engineering and Structural Retrofit,Beijing University of Technology,Beijing 100024) |
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| Abstract: | Based on an irregular concrete-filled steel tube arch bridge,the 3-D spatial finite element model is built by ANSYS to complete the dynamic characteristic analysis and seismic response of the bridge under uniform excitation and non-uniform excitation.Seismic response control effectiveness of Lock-up devices is calculated then.The result shows the seismic response under the combination of longitudinal and vertical excitation input is apparently larger than the seismic response under longitudinal or vertical ... |
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| Keywords: | irregular CFST arch bridge multi-dimensional and multi-support lock-up device seismic control |
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