Modeling and simulation of human-floor system under vertical vibration
Proceedings of SPIE - The International Society for Optical Engineering
SPIE--The International Society for Optical Engineering.
© (2001) Copyright SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
With the trend towards longer span and thus lower frequency floors, human induced vibration and human-structure interaction has received more and more concern about structural serviceability. When subjected to vertical vibration, a human behaves as a mass-spring-damper system rather than solely as a mass on the structure. The interaction between the human body and the structure results in a significant increase in the damping of the human-structure system. In order to study human-structure interaction, mathematical model for this system is established. The human body and the slab are simulated as a SDOF model respectively. Through laboratory experiment with 30 human samples, the parameters of the SDOF human model were obtained, The result shows that the human resonant frequency is 5.24±0.40Hz, and damping ratio is 39%±0.05. By combining experimental data and simulation, the human body’s damping effect on vibrating floor was quantified in terms of energy absorption. During vibration, human absorbed most of the input energy.
Author's version. The final published version is available via the publisher website at doi:10.1117/12.436586.
Vol. 4327, pp. 513 - 520