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Vibrational Response of Structures Exposed to Human-Induced Loads

  • Jonas Syders Knudsen
  • Nikolaj Grathwol
  • Svend Ole Hansen
Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)

Abstract

Structures like pedestrian bridges, staircases and floors become lighter and more slender. As a consequence human-induced vibrations in resonance with the structure become increasingly important when considering the serviceability of a structure. The present paper describes the vibrational response using models for pedestrian loads and the accompanying assessment of the serviceability of a structure exposed to human-induced vibrations. The presented approach uses natural frequencies, modal masses and structural damping to determine the structural vibrations. This allows for more flexible and elegant structures when considering human comfort, which often is dimensioning for light structures with large spans. A criteria based on frequency limits is not sufficient to ensure satisfactory vibration serviceability, especially for light structures. The approach is compared with vibration measurements on a structure before and after the installation of tuned mass dampers.

Keywords

Human-induced vibrations Vibration measurements Tuned mass dampers Vibration criteria Structural dynamics 

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Copyright information

© The Society for Experimental Mechanics, Inc. 2019

Authors and Affiliations

  • Jonas Syders Knudsen
    • 1
  • Nikolaj Grathwol
    • 1
  • Svend Ole Hansen
    • 1
    • 2
  1. 1.Svend Ole Hansen ApSCopenhagenDenmark
  2. 2.SOH Wind Engineering LLCBurlingtonUSA

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