| 某轻型柔性钢结构人行天桥的动力特性分析 |
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| 引用本文： | 孙道远.某轻型柔性钢结构人行天桥的动力特性分析[J].四川建筑科学研究,2011,37(3):60-64. |
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| 作者姓名： | 孙道远 |
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| 作者单位： | 上海房屋质量检测站,上海,200031 |
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| 摘 要： | 以某轻型、柔性钢结构人行天桥为工程背景,对该人行天桥进行了现场动力测试,运用有限元分析软件SAP2000建立了该天桥的有限元模型并对其模态参数进行了分析,通过参数分析得到了结构振动频率和各参数之间的关系,更好地了解了结构的动力特性。基于这一关系及动力实测结果,对初始有限元模型进行了修正,从而得到了天桥结构的基准有限元模型,此基准有限元模型对该结构今后的加固改造及振动状态评估具有宝贵的参考意义。
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| 关 键 词： | 人行天桥 动力测试 模态参数 动力特性 |
Analysis of dynamic characteristics of a light flexible steel footbridge |
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| SUN Daoyuan.Analysis of dynamic characteristics of a light flexible steel footbridge[J].Building Science Research of Sichuan,2011,37(3):60-64. |
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| Authors: | SUN Daoyuan |
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| Affiliation: | SUN Daoyuan(Shanghai Housing Quality Inspection Station,Shanghai 200031,China) |
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| Abstract: | A light flexible footbridge carried on the dynamic testing is engineering background,established the finite element model using finite element analysis software SAP2000 and carried analysis on the modal parameters.In this way,the relations structural vibration frequency and parameters were figured out by parameter analysis,which made understand the structural dynamic characteristics better.The FE model was calibrated based on the results of dynamic testing and parameter analysis,furthermore,the standard FE ... |
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| Keywords: | footbridge dynamic testing modal parameters dynamic characteristics |
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