| 新型钢弹簧浮置板道床隔振试验与数值分析研究 |
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| 引用本文： | 高扬,张强,刘文光,李腾.新型钢弹簧浮置板道床隔振试验与数值分析研究[J].世界地震工程,2020,0(3):038-47. |
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| 作者姓名： | 高扬 张强 刘文光 李腾 |
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| 作者单位： | 上海大学 土木工程系,核电站隔震减震工程技术研究中心,上海200444;上海大学 土木工程系,核电站隔震减震工程技术研究中心,上海200444;上海大学 土木工程系,核电站隔震减震工程技术研究中心,上海200444;上海大学 土木工程系,核电站隔震减震工程技术研究中心,上海200444 |
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| 基金项目： | 国家自然科学基金;国家自然科学基金 |
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| 摘 要： | 提出了一种附加位移放大杠杆的新型钢弹簧浮置板道床隔振装置并进行了理论分析，给出了该装置基于位移放大倍数的阻尼力和耗能计算公式。同时设计制作了附加3倍位移放大的新型钢弹簧浮置板道床隔振装置并进行了地铁振动测试，试验结果表明:该装置隔振效果显著。通过建立新型钢弹簧浮置板道床隔振系统有限元分析模型，数值模拟结果与实测振动数据可进行较好的吻合，结果表明:新型钢弹簧浮置板道床隔振系统能有效地减小结构的动力响应。
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| 关 键 词： | 新型钢弹簧浮置板道床 位移放大装置 隔振试验 数值分析研究 |
Vibration isolation test and numerical analysis of a new type of steel spring floating slab track |
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| GAO Yang,ZHANG Qiang,LIU Wenguang,LI Teng.Vibration isolation test and numerical analysis of a new type of steel spring floating slab track[J].World Information On Earthquake Engineering,2020,0(3):038-47. |
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| Authors: | GAO Yang ZHANG Qiang LIU Wenguang LI Teng |
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| Institution: | Department of Civil Engineering, Engineering Research Center on Seismic Isolation Technology of NPP Structure, Shanghai University, Shanghai 200444, China |
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| Abstract: | This paper proposed a new type of vibration isolation device of steel spring floating slab track bed with additional displacement amplification lever. The theoretical analysis on the device to obtain formulas of energy consumption and damping force based on displacement magnification is performed. The new type of vibration isolation device with treble displacement amplifications is designed, then the vibration test of subway is carried out. Experimental results showed that the new device has remarkable isolation effects. By conducting the finite element analysis of the new type of vibration isolation system, it is found that the numerical simulation results are in good agreement with that of the test. The results indicated that the new type of vibration isolation system could effectively decrease the dynamic responses of the structures. |
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| Keywords: | new type of steel spring floating slab track bed displacement amplifier isolation test numerical analysis |
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