Abstract
This paper is based on field measurements that were undertaken in a facility housing ultra-low level vibration sensitive equipment. The aim of these tests was to better understand the vibration transmission from an overhead pedestrian footbridge to a pile supported experimental floor and the supported vibration sensitive equipment. The results of experimental measurements to estimate the as-built modal properties (natural frequencies, modal damping ratios and mode shapes) of the footbridge structure are presented as well as response measurements at selected locations on the footbridge and experimental floor from controlled walking tests. These series of measurements indicate that vibrations are transmitted from the footbridge to the experimental floor as well as to the supported equipment. This is verified through transmissibility checks which also indicate that vibrations from the experimental floor are transmitted onto the supported equipment over the frequency bandwidth considered. The assessment of vibration levels using vibration criteria curves for response measurements on the experimental floor and the supported equipment for ambient (quiet conditions) and controlled walking excitations on the footbridge structure are also provided.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Brownjohn, J.M.W., Pavic, A.: Vibration control of ultra-sensitive facilities. ICE Proc. Struct. Build. 159 (SB5), 295–306 (2006)
Gordon, C.G.: Generic criteria for vibration-sensitive equipment. Proc. Int. Soc. Opt. Eng. (SPIE) 1619, 22–33 (1999)
Amick, C.H., Gendreau, M., Busch, T., Gordon, C.G.: Evolving criteria for research facilities: I - vibration. In: Proceedings of SPIE Conference 5933: Buildings for Nanoscale Research and Beyond, San Diego, vol. 5933, pp. 1–13 (2005)
BS6841 guide to measurement and evaluation of human exposure to whole-body mechanical vibration and repeated shock, British Standard (1987)
BS6472-1 Guide to evaluation of human exposure to vibration in buildings. Vibration sources other than blasting, British Standard (2008)
Amick, C.H., Monteiro, P.J.M.: Vibration control using large pneumatic isolation systems with damped concrete inertia masses. In: International Conference on Motion and Vibration Control, MoViC 04, vol. 118, pp. 1–10 (2004)
Abakumov, A.M., Miatov, G.N.: Control algorithms for active vibration isolation systems subject to random disturbances. J. Sound Vib. 289, 889–907 (2006)
Acknowledgements
The authors would like to acknowledge the financial assistance provided by the UK Engineering and Physical Sciences Research Council (EPSRC) through a responsive mode grant (Ref. EP/H009825/1), and a Leadership Fellowship Grant (Ref. EP/J004081/2).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2017 The Society for Experimental Mechanics, Inc.
About this paper
Cite this paper
Nyawako, D., Reynolds, P., Hudson, E.J. (2017). Investigation of Transmission of Pedestrian-Induced Vibration into a Vibration-Sensitive Experimental Facility. In: Caicedo, J., Pakzad, S. (eds) Dynamics of Civil Structures, Volume 2 . Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-54777-0_38
Download citation
DOI: https://doi.org/10.1007/978-3-319-54777-0_38
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-54776-3
Online ISBN: 978-3-319-54777-0
eBook Packages: EngineeringEngineering (R0)