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Development of dynamic load factors for human walking excitation for floor vibration design

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
This paper discusses the derivation of a set of dynamic load factors for calculation of walking response on the basis of measurements made during a biomechanics research carried out with young adults. Firstly, a quite large number of experimental data on single footstep force were collected. The single footstep forces were then superimposed to generate the force time history for a continuous walk. This was followed by the transformation of the resultant force to the frequency domain from which the dynamic load factors for the first ten harmonics of a pacing rate can be extracted. A statistical analysis was employed on the dynamic load factors to acquire their design values in terms of the 90-th or 95-th percentile. The waking force function recommended by various design guides and that developed in the paper were then used in a comprehensive finite element model to predict the vibration level of a building floor. Current design guides on floor vibration normally suggest using four harmonics in the walking force whereas load factors for ten harmonics were developed in this paper. The acceleration response of the floor was found to increase by 5-33% when walking harmonics beyond the fourth harmonic were considered. The inclusion of higher harmonics would therefore lead to a more conservative estimation of the floor response.
Rocznik
Strony
103--114
Opis fizyczny
Bibliogr. 24 poz., tab., wykr.
Twórcy
  • Faculty of Civil Engineering, University of Architecture Ho Chi Minh City, HCMC, VIETNAM
autor
  • STEM College, RMIT University, Bundoora, VIC, AUSTRALIA
autor
  • School of Engineering, Swinburne University of Technology, Hawthorn, VIC, AUSTRALIA
autor
  • School of Engineering, Swinburne University of Technology, Hawthorn, VIC, AUSTRALIA
  • School of Engineering, Swinburne University of Technology, Hawthorn, VIC, AUSTRALIA
Bibliografia
  • [1] Devin A., Fanning P.J. and Pavic A. (2015): Nonstructural partitions and floor vibration serviceability.– Journal of Architectural Engineering, vol.22, No.1, pp.04015008. DOI: 10.1061/(ASCE)AE.1943-5568.0000171.
  • [2] Szydlowski R. and Labuzek B. (2017): Post-tensioned concrete long-span slabs in projects of modern building construction.– IOP Conference Series: Materials Science and Engineering, vol.245, No.2, p.022065. DOI:10.1088/1757-899X/245/2/022065.
  • [3] Setareh M. (2020): Vibration serviceability evaluation of office building floors due to human movements.– Journal of Performance of Constructed Facilities, vol.34, No.4, pp.04020068. DOI: 10.1061/(ASCE)CF.1943-5509.0001457.
  • [4] Willford M., Young P. and Field C. (2007): Predicting footfall-induced vibration: Part 1.– Proceedings of the Institution of Civil Engineers-Structures and Buildings, vol.160, No.2, pp.65-72. DOI: 10.1680/stbu.2007.160.2.65.
  • [5] Murray T.M., Allen D.E., Ungar E.E. and Davis D.B. (2016): AISC steel design guide 11-Vibration of steel-frame structural systems due to human activities.– Chicago: American Institute of Steel Construction.
  • [6] Nguyen T.H., Saidi I., Gad E.F., Wilson J.L. and Haritos N. (2012): Performance of distributed multiple viscoelastic tuned mass dampers for floor vibration applications.– Advances in Structural Engineering, vol.15, No.3, pp.547– 562. DOI: 10.1260/1369-4332.15.3.547.
  • [7] Nguyen T., Gad E., Wilson J. and Haritos N. (2014): Mitigating footfall-induced vibration in long-span floors.– Australian Journal of Structural Engineering, vol.15, No.1, pp.97-109. DOI: 10.7158/S12-061.2014.15.1.
  • [8] Nguyen H.A.T. (2022): Relocation of walking path to resolve vibration problems in a lightweight floor.– Lecture Notes in Civil Engineering, vol. 203, pp.471-479. DOI: 10.1007/978-981-16-7160-9_47.
  • [9] Hanagan L.M. (2016): Mitigating existing floor vibration issues in a school renovation.– Dynamics of Coupled Structures, vol.4, pp.155-162. DOI: 10.1007/978-3-319-29763-7_16.
  • [10] Carmona J.E.C, Avila S. and Doz G. (2017): Proposal of a tuned mass damper with friction damping to control excessive floor vibrations.– Engineering Structures, vol.148, pp.81-100. DOI: 10.1016/j.engstruct.2017.06.022.
  • [11] NRCC (2005): National Building Code of Canada 2015 - Volume 1.– Ottawa: National Research Council of Canada.
  • [12] ISO 10137:2007 (2012): Bases for design of structures - Serviceability of buildings and walkways against vibrations.– Geneva: International Organization for Standardization.
  • [13] Smith A., Hicks S. and Devine P. (2009): SCI P354 Design of floors for vibration: a new approach.– Ascot: The Steel Construction Institute.
  • [14] Van Engelen N.C. and Graham J. (2019): Comparison of prediction and measurement techniques for pedestrian‐ induced vibrations of a low‐frequency floor.– Structural Control and Health Monitoring, vol.26, No.1, p.e2294. DOI: 10.1002/stc.2294.
  • [15] Royvaran M., Avci O. and Davis B. (2020): Analysis of floor vibration evaluation methods using a large database of floors framed with W-Shaped members subjected to walking excitation.– Journal of Constructional Steel Research, vol.164, pp.105764. DOI: 10.1016/j.jcsr.2019.105764.
  • [16] Bachmann H. and Ammann W. (1987): Vibrations in structures: induced by man and machines.– Zurich: International Association for Bridge and Structural Engineering IABSE.
  • [17] Lythgo N., Wilson C. and Galea M. (2011): Basic gait and symmetry measures for primary school-aged children and young adults. II: Walking at slow, free and fast speed.– Gait & posture, vol.33, No.1, pp.29-35. DOI: 10.1016/j.gaitpost.2010.09.017.
  • [18] Wahid F., Begg R., Lythgo N., Hass C.J., Halgamuge S. and Ackland D.C. (2016): A multiple regression approach to normalization of spatiotemporal gait features.– Journal of Applied Biomechanics, vol.32, No.2, pp.128-139. DOI: 10.1123/jab.2015-0035.
  • [19] Brownjohn J., Pavic A. and Omenzetter P. (2004): A spectral density approach for modelling continuous vertical forces on pedestrian structures due to walking.– Canadian Journal of Civil Engineering, vol.31, No.1, pp.65-77. DOI: 10.1139/l03-072.
  • [20] Živanovic S. and Pavic A. (2009): Probabilistic modeling of walking excitation for building floors.– Journal of Performance of Constructed Facilities, vol.23, No.3, pp.132-143. DOI: 10.1061/(ASCE)CF.1943-5509.0000005.
  • [21] García-Diéguez M. and Zapico-Valle J.L. (2017): Statistical modeling of the relationships between spatiotemporal parameters of human walking and their variability.– Journal of Structural Engineering, vol.143, No.12, pp.04017164. DOI: 10.1061/(ASCE)ST.1943-541X.0001899.
  • [22] Muhammad Z.O. and Reynolds P. (2020): Probabilistic multiple pedestrian walking force model including pedestrian inter- and intrasubject variabilities.– Advances in Civil Engineering, vol.2020, pp.1-14. DOI: 10.1155/2020/9093037.
  • [23] Sedlacek G., Heinemeyer C., Butz C., Völling B., Waarts P., Duin F., Hicks S., Devine P. and Demarco T. (2006): Generalisation of criteria for floor vibrations for industrial, office, residential and public building and gymnastic halls.– Luxembourg: European Commission.
  • [24] Ilett P., Lythgo N., Martin C. and Brock K. (2016): Balance and gait in people with multiple sclerosis: a comparison with healthy controls and the immediate change after an intervention based on the Bobath concept.– Physiotherapy Research International, vol.21, No.2, pp.91-101. DOI:10.1002/pri.1624.
Uwagi
PL
Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-c20812ad-b0e4-4025-950f-9187b1f54e2c
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