Measurement and application of walking models for evaluating floor vibration

Liang Cao, Jiang Li, Y. Frank Chen, Shu Huang

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

For light and long-span structures, human-induced vibration may present a serviceability issue. To study the vibration serviceability problem, it is important to have a better understanding on human-induced forces, such as walking. To this end, the load-time histories of walking excited by 25 test participants were measured using a force-measuring plate. Totally, 300 walking force–time histories were recorded; and the peak load factors were compared in detail. The correlation analysis shows that there is a weak correlation between the three directional components of walking load, i.e., the walking component can be modeled independently. Then, the Fourier series functions for walking were derived; and the relationships between the dynamic loading factors, phase angles and the duration time Tp of single-step walking were developed, giving the forcing functions. The load-time history extension method was used to establish the forcing function for continuous walk. Lastly, the proposed continuous walking model was validated with the test and finite element results.

Original languageEnglish (US)
Pages (from-to)561-575
Number of pages15
JournalStructures
Volume50
DOIs
StatePublished - Apr 2023

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Safety, Risk, Reliability and Quality

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