- Volume 13 Issue 2
DOI QR Code
Improving a current method for predicting walking-induced floor vibration
- Nguyen, T.H. (Faculty of Engineering and Industrial Sciences, Swinburne University of Technology) ;
- Gad, E.F. (Faculty of Engineering and Industrial Sciences, Swinburne University of Technology) ;
- Wilson, J.L. (Faculty of Engineering and Industrial Sciences, Swinburne University of Technology) ;
- Haritos, N. (Department of Infrastructure Engineering, The University of Melbourne)
- Received : 2011.02.17
- Accepted : 2012.05.01
- Published : 2012.08.25
Serviceability rather than strength is the most critical design requirement for vibration-vulnerable floor constructions. Annoying vibrations due to normal walking activity have been observed more frequently on long-span lightweight floor systems in office and commercial retail buildings, raising the need for the development of floor vibration design procedures. This paper highlights some limitations of one of the most commonly used guidelines AISC/CISC DG11, and proposes improvements to this method. Design charts and approximate closed form formulas to estimate the walking response are developed in which various factors relating to the dynamic characteristics of both the floor and the excitation are considered. The accuracy of the proposed formulas and other proposals found in the literature is examined. The proposed modifications would be significant, especially with long-span floors where vibration levels may be underestimated by the current design procedure. The application of the proposed prediction method is illustrated by worked examples that reveal a good agreement with results obtained from finite element analyses and experiments. The presented work would enhance the accuracy and maintain the simplicity and convenience of the design guideline.
- ABS (2008), Overweight and Obesity in Adults, Australia, 2004-05, Australian Bureau of Statistics.
- Bachmann, H. and Ammann, W. (1987), Vibrations in structures: induced by man and machines, IABSE-AIPCIVBH, Zurich, Switzerland.
- Clough, R.W. and Penzien, J. (1993), Dynamics of structures, McGraw-Hill, New York.
- CSI (2009), SAP2000 - Static and Dynamic Finite Element Analysis of Structures, Computers and Structures, Inc., Berkeley, California.
- European Commission (2006), Generalisation of criteria for floor vibrations for industrial, office, residential and public building and gymnastic halls, RFCS Report EUR 21972 EN, Luxembourg.
- Fryba, L. (1999), Vibration of solids and structures under moving loads, Thomas Telford, London.
- Fryba, L. (2009), Dynamics of bridges under moving loads (past, present and future), Taylor & Francis, London.
- Hechler, O., Feldmann, M., Heinemeyer, C. and Galanti, F. (2008), "Design Guide for Floor Vibrations", Euro Steel 2008, Graz, Austria, September.
- Heinemeyer, C., Butz, C., Keil, A., Schlaich, M., Goldack, A., Trometer, S., Lukic, M., Chabrolin, B., Lemaire, A., Martin, P.-O., Cunha, A. and Caetano, E. (2009), Design of Lightweight Footbridges for Human Induced Vibrations, European Commission.
- Kerr, S. and Bishop, N. (2001), "Human induced loading on flexible staircases", Eng. Struct., 23(1), 37-45. https://doi.org/10.1016/S0141-0296(00)00020-1
- Marks, T. (2010), "Evaluation of footfall vibration in commercial buildings", Steel Construct. (J. AS I), 44(1), 12-17.
- Murray, T.M., Allen, D.E. and Ungar, E.E. (2003), Design Guide 11, Floor Vibrations Due to Human Activities, American Institute of Steel Construction AISC, Canadian Institute of Steel Construction CISC.
- NatCen and UCL (2009), Health Survey for England - 2008 trend tables, National Centre for Social Research & Department of Epidemiology and Public Health, UCL Medical School.
- Ogden, C., Fryar, C., Carroll, M. and Flegal, K. (2004), "Mean body weight, height, and body mass index, United States 1960-2002", Adv. Data., 347, 1-17.
- Rainer, J. and Pernica, G. (1986), "Vertical dynamic forces from footsteps", Can. Acoust., 14(2), 12-21.
- Ricciardelli, F. and Briatico, C. (2011), "Transient response of supported beams to moving forces with sinusoidal time variation", J. Eng. Mech. ASCE, 137(6), 422-430. https://doi.org/10.1061/(ASCE)EM.1943-7889.0000241
- Shields, M., Gorber, S.C. and Tremblay, M.S. (2008), "Estimates of obesity based on self-report versus direct measures", Health Reports, 19(2), 61-76.
- Smith, A., Hicks, S. and Devine, P. (2009), Design of Floors for Vibration: A New Approach (Revised Edition), The Steel Construction Institude Publication P354, Ascot, UK.
- Willford, M. and Young, P. (2006), A Design Guide for Footfall Induced Vibration of Structures, The Concrete Society Publication CCIP-016, Trowbridge, UK.
- Willford, M., Young, P. and Field, C. (2005). "Improved methodologies for the prediction of footfall-induced vibration", Proceedings of SPIE, Bellingham.
- Willford, M., Young, P. and Field, C. (2007), "Predicting footfall-induced vibration: Part 1", Proceedings of the Institution of Civil Engineers-Structures and Buildings, 160(2), 65-72.
- Wyatt, T. (1989), Design guide on the vibration of floors, The Steel Construction Institute Publication P076, Ascot, UK.