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Analysis of vibration response characteristics of subway station and superstructure with hard combination.

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Title: Analysis of vibration response characteristics of subway station and superstructure with hard combination.
Authors: Jia, Jinglong1 (AUTHOR), Xu, Weiping2,3 (AUTHOR) xwp1981@126.com, Liu, Xu4 (AUTHOR), Wei, Yong1 (AUTHOR)
Source: Earthquake Engineering & Engineering Vibration. Jan2025, Vol. 24 Issue 1, p271-281. 11p.
Subjects: High speed trains, Subways, Speed, Subway stations
Abstract: The vibration response and noise caused by subway trains can affect the safety and comfort of superstructures. To study the dynamic response characteristics of subway stations and superstructures under train loads with a hard combination, a numerical model is developed in this study. The indoor model test verified the accuracy of the numerical model. The influence laws of different hard combinations, train operating speeds and modes were studied and evaluated accordingly. The results show that the frequency corresponding to the peak vibration acceleration level of each floor of the superstructure property is concentrated at 10–20 Hz. The vibration response decreases in the high-frequency parts and increases in the low-frequency parts with increasing distance from the source. Furthermore, the factors, such as train operating speed, operating mode, and hard combination type, will affect the vibration of the superstructure. The vibration response under the reversible operation of the train is greater than that of the unidirectional operation. The operating speed of the train is proportional to its vibration response. The vibration amplification area appears between the middle and the top of the superstructure at a higher train speed. Its vibration acceleration level will exceed the limit value of relevant regulations, and vibration-damping measures are required. Within the scope of application, this study provides some suggestions for constructing subway stations and superstructures. [ABSTRACT FROM AUTHOR]
Copyright of Earthquake Engineering & Engineering Vibration is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Analysis of vibration response characteristics of subway station and superstructure with hard combination.
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  Data: <searchLink fieldCode="JN" term="%22Earthquake+Engineering+%26+Engineering+Vibration%22">Earthquake Engineering & Engineering Vibration</searchLink>. Jan2025, Vol. 24 Issue 1, p271-281. 11p.
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  Data: <searchLink fieldCode="DE" term="%22High+speed+trains%22">High speed trains</searchLink><br /><searchLink fieldCode="DE" term="%22Subways%22">Subways</searchLink><br /><searchLink fieldCode="DE" term="%22Speed%22">Speed</searchLink><br /><searchLink fieldCode="DE" term="%22Subway+stations%22">Subway stations</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The vibration response and noise caused by subway trains can affect the safety and comfort of superstructures. To study the dynamic response characteristics of subway stations and superstructures under train loads with a hard combination, a numerical model is developed in this study. The indoor model test verified the accuracy of the numerical model. The influence laws of different hard combinations, train operating speeds and modes were studied and evaluated accordingly. The results show that the frequency corresponding to the peak vibration acceleration level of each floor of the superstructure property is concentrated at 10–20 Hz. The vibration response decreases in the high-frequency parts and increases in the low-frequency parts with increasing distance from the source. Furthermore, the factors, such as train operating speed, operating mode, and hard combination type, will affect the vibration of the superstructure. The vibration response under the reversible operation of the train is greater than that of the unidirectional operation. The operating speed of the train is proportional to its vibration response. The vibration amplification area appears between the middle and the top of the superstructure at a higher train speed. Its vibration acceleration level will exceed the limit value of relevant regulations, and vibration-damping measures are required. Within the scope of application, this study provides some suggestions for constructing subway stations and superstructures. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Earthquake Engineering & Engineering Vibration is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s11803-025-2305-9
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      – Code: eng
        Text: English
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        PageCount: 11
        StartPage: 271
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      – SubjectFull: High speed trains
        Type: general
      – SubjectFull: Subways
        Type: general
      – SubjectFull: Speed
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      – SubjectFull: Subway stations
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            – D: 01
              M: 01
              Text: Jan2025
              Type: published
              Y: 2025
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