| MTMD对高速铁路32m预应力混凝土简支箱梁竖向振动特性的影响分析 |
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| 引用本文： | 王巍,杨宜谦,刘鹏辉,姚京川.MTMD对高速铁路32m预应力混凝土简支箱梁竖向振动特性的影响分析[J].环境工程,2012(Z1):153-155. |
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| 作者姓名： | 王巍 杨宜谦 刘鹏辉 姚京川 |
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| 作者单位： | 中国铁道科学研究院铁道建筑研究所;高速铁路轨道技术国家重点实验室(中国铁道科学研究院) |
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| 基金项目： | 铁道部科技研究开发计划重大课题(2008G301-L) |
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| 摘 要： | 为降低京沪高速铁路苏州北站候车厅受桥梁振动的影响,拟在正线32m预应力混凝土简支箱梁内安装多重调频质量阻尼器(MTMD)。通过建立车—桥—MTMD竖向动力分析模型,分析MTMD对32m简支箱梁竖向振动特性的影响。计算结果表明,加装MTMD后,32m简支箱梁一阶竖向自振频率有所降低,32m简支箱梁的竖向振动响应明显减小。
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| 关 键 词： | 多重调频质量阻尼器 高速铁路 简支箱梁 竖向振动 |
ANALYSIS OF INFLUENCE OF MTMD ON THE VERTICAL VIBRATION CHARACTER OF HIGH-SPEED RAILWAY 32m PRESTRESSED CONCRETE SIMPLY SUPPORTED BOX BEAM |
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| Wang Wei,Yang Yiqian,Liu Penghui,Yao Jingchuan.ANALYSIS OF INFLUENCE OF MTMD ON THE VERTICAL VIBRATION CHARACTER OF HIGH-SPEED RAILWAY 32m PRESTRESSED CONCRETE SIMPLY SUPPORTED BOX BEAM[J].Environmental Engineering,2012(Z1):153-155. |
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| Authors: | Wang Wei Yang Yiqian Liu Penghui Yao Jingchuan |
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| Institution: | 1,2(1.Railway Engineering Research Institute,China Academy of Railway Sciences,Beijing,100081,China;2.State Key Laboratory for Track Technology of High-speed Railway,China Academy of Railway Sciences,Beijing,100081,China;) |
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| Abstract: | The multi-ply turned mass damper(MTMD) would be fixed in the 32m prestressed simply supported box beam used in the mine line in order to reduce the impact of bridge vibration on the waiting room of Suzhou north station in Beijing-Shanghai high-speed railway.The vertical dynamic analysis models of the train-bridge-MTMD were built to analyze the impact of the MTMD on the vertical vibration character of 32m simply supported box beam.The calculation results showed that the natural frequency of 32m simply supported box beam was lower and the vertical vibration of 32m simply supported box beam decreased obviously with the MTMD. |
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| Keywords: | Multi-ply Turned Mass Damper high-speed railway simply supported box beams vertical vibration |
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