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Updated: Aug 4, 2025

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior
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Practical back-analysis methodology to predict underground train-induced building vibrations.

Zonghao Yuan1, Jing Wu1, Honglei Sun2

  • 1College of Civil Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.

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|March 30, 2023
PubMed
Summary
This summary is machine-generated.

This study presents a hybrid method to predict train-induced building vibrations by combining field measurements and numerical simulations. The approach refines a virtual train track force until simulations match real-world data, enabling accurate vibration predictions.

Keywords:
Back-analysis methodologyBuilding vibrationExperimental validationNumerical simulationsUnderground railways

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Area of Science:

  • Geotechnical Engineering
  • Structural Dynamics
  • Vibration Analysis

Background:

  • Train-induced vibrations pose challenges for building integrity and comfort.
  • Accurate prediction of these vibrations is crucial for mitigation strategies.
  • Modeling the complex vehicle-track interaction as a vibration source is often difficult.

Purpose of the Study:

  • To propose a practical back-analysis methodology for calculating underground train-induced building vibrations.
  • To integrate field measurements with numerical simulations for improved accuracy.
  • To establish a reliable method for predicting building vibrations caused by trains.

Main Methods:

  • A hybrid methodology combining field measurements and numerical simulations.
  • Creation of a virtualized moving source at the rail surface.
  • Iterative modification of the virtual source to match field measurements at specific locations (ground surface or near foundations).

Main Results:

  • The proposed hybrid methodology effectively predicts train-induced building vibrations.
  • Numerical predictions were validated against field test results.
  • The method's practicality was confirmed through comparative analysis.

Conclusions:

  • The developed back-analysis methodology offers a practical solution for predicting train-induced building vibrations.
  • This approach simplifies the modeling of the vibration source.
  • The method can be applied to analyze vibration transmission laws and characteristics in buildings.