The impact of damage parameters of rail transit steel spring isolators on dynamic response

FU Weiqing; DI Huilin; ZHAO Liang; WANG Jian

doi:10.11835/j.issn.2096-6717.2023.106

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The impact of damage parameters of rail transit steel spring isolators on dynamic response

Civil Engineering | 更新时间：2026-02-18

- The impact of damage parameters of rail transit steel spring isolators on dynamic response
- Journal of Civil and Environmental Engineering Vol. 48, Issue 1, Pages: 194-201(2026)
- 作者机构：
  
  1.青岛理工大学土木工程学院，山东青岛 266525
  2.青岛零一动测数据科技有限公司，山东青岛 266114
- 作者简介：
  
  FU Weiqing (1976- ), PhD, professor, main research interests: structural vibration control and health monitoring, E-mail: fuweiqing@qut.edu.cn.
- 基金信息：
  
  National Natural Science Foundation of China(52178488)
- DOI：10.11835/j.issn.2096-6717.2023.106
  CLC： U213.2
- Received：17 July 2023，
  
  Published：25 February 2026
- 稿件说明：
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付伟庆,狄会霖,赵亮等.轨道交通钢弹簧隔振器损伤参数对动力响应的影响[J].土木与环境工程学报,2026,48(01):194-201.

FU Weiqing,DI Huilin,ZHAO Liang,et al.The impact of damage parameters of rail transit steel spring isolators on dynamic response[J].Journal of Civil and Environmental Engineering,2026,48(01):194-201.
付伟庆,狄会霖,赵亮等.轨道交通钢弹簧隔振器损伤参数对动力响应的影响[J].土木与环境工程学报,2026,48(01):194-201. DOI： 10.11835/j.issn.2096-6717.2023.106.

FU Weiqing,DI Huilin,ZHAO Liang,et al.The impact of damage parameters of rail transit steel spring isolators on dynamic response[J].Journal of Civil and Environmental Engineering,2026,48(01):194-201. DOI： 10.11835/j.issn.2096-6717.2023.106.

摘要

城市轨道交通结构中，弹簧隔振器在疲劳作用下会出现刚度减小、损伤和吊空现象，作为隐蔽部件，其损伤很难被巡检发现。严重的弹簧隔振器损伤或连续数量较大的隔振器损伤将影响行车安全，但目前对轨道支承结构的研究主要针对扣件和轨枕，对钢弹簧的研究较少。采用试验方法进行研究需要更换损伤后的弹簧，对行车安全带来不利影响，因此，利用有限元模型，设置不同损伤的钢弹簧进行研究。应用ABAQUS有限元软件，建立车辆-轨道耦合模型，选取某沿海城市地铁区段浮置板实测振动数据对模型进行验证。对钢弹簧损伤进行设置，若采用全面试验，设置所有工况组合，则时间成本会大大增加，因此采用均匀设计法对弹簧隔振器不同损伤数量、不同损伤程度和不同损伤位置工况进行参数试验设计，通过模型模拟计算量化各损伤参数对浮置板振动响应的影响程度。结果表明：对浮置板加速度和位移影响最大的是弹簧隔振器的损伤位置，影响权重分别为50%和49.3%；其次是损伤数量，影响权重分别为28.4%和27.9%；最后是损伤程度，影响权重分别为21.6%和22.8%。可见，浮置板损伤位置对其振动响应最大，其次是钢弹簧损伤数量，最后是钢弹簧损伤程度。

Abstract

In the structural context of urban rail transit systems

spring isolators are susceptible to stiffness reduction

damage

and sagging due to fatigue effects. The presence of concealed components can render their detection challenging during routine inspections. A vehicle-track coupled model was established using the finite element software ABAQUS. The model was validated using actual vibration data from a specific section of the Shenzhen Metro’s floating slab. A uniform design approach was adopted for the execution of parameter experiments on spring isolators under various conditions

including different levels of damage in terms of quantity

severity

and location. Through model simulation

the quantitative impact of these damage parameters on the vibration response of the floating slab was determined. The calculation results indicate that the location of damage to the spring isolators exerts the greatest influence on the acceleration and displacement of the floating slab

with respective impact weights of 50% and 49.3%. The impact of the number of damaged isolators is 28.4% and 27.9%

while the impact of damage severity accounts for 21.6% and 22.8%.It can be seen that the damage location of the floating slab has the greatest influence on its vibration response

followed by the number of damaged steel springs

and finally the damage degree of steel springs.

关键词

Keywords

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