Acceleration Response Analysis of a Steel-wood Composite Floor System under Human-induced Vibration
Journal of Scientific Research and Reports,
To investigate the vibration response of a steel-wood composite floor system under walking and jump excitation. The ABAQUS subroutine Vdload is used to simulate the human walking and jumping process on the structure, while the human-induced excitation is equated to a combination of a Fourier-scale load model and a biomechanical model of mass, stiffness, and damping (MSD) to study the human-induced vibration response under human-structure interaction (HSI). The effects of walking and jumping excitation on the peak acceleration of the structure are also considered. The results show that the peak acceleration of the structure considering the human-structure interaction is significantly smaller than that without the human-structure interaction, and the results obtained from the numerical simulation analysis are more consistent with the experimental situation. In addition, the acceleration response of the steel-wood composite floor system under jump excitation is larger than that of walking excitation, and the peak acceleration increases with the increase of jump frequency. Then: any floor, no matter its structural configuration and material, is prone to vibrate under walking and jumpimg excitation if the excitation frequency is in resonance with one of its main frequencies. The induced vibrations affect the floor serviceability, when the induced peak acceleration exceeds the comfort requirements. The magnitude of the induced peak acceleration is the larger, the larger the acting force and the lower the vibrating floor mass and its damping.
- Steel-wood composite floor system
- walking excitation
- jumping excitation
- human-structure interaction
- peak acceleration
How to Cite
Gelfi P, Giuriani E. Behaviour of stud connectors in wood-concrete composite beams [J]. WIT Transactions on The Built Environment. 1970;42.
Chang W, Goldsmith T, Harris R. A new design method for timber floors–peak acceleration approach[C]. Proceedings of the International Network on Timber Engineering Research Meeting; 2018.
Zhang B, Kermani A, Fillingham T. Vibrational performance of timber floors constructed with metal web joists[J]. Engineering structures. 2013;56:1321-1334.
Koyama Y, Matsushita H, Fukuda S, et al. Measurement about walking vibration on cross laminated timber floors, and presentation of a span table by finite element method[C].// Proceedings of the World Conference on Timber Engineering (WCTE-2018); 2018.
Glisovic I, Stevanovic B. Vibrational behaviour of timber floors[C]. World Conference on Timber Engineering; 2010.
British Standards Institution (BSI). BS 6472-1:2008 Guide to evaluation of human exposure to vibration in buildings – Part 1: vibration sources other than blasting. London, UK; 2008.
Hu LJ, Chui YH. Development of a design method to control vibrations induced by normal walking action in wood-based floors. Proceedings of the 8th World Conference onf Timber Engineering. 2004;217-22.
Huang H, Gao Y, Chang W-S. Human-induced vibration of cross-laminated timber (CLT) floor under different boundary conditions [J]. Engineering Structures. 2020;204:110016.
TAN H, CHEN J, PAN Z Y. Experimental verification of mobile phones for vibration measurements [C] // In the 7th Conference on Structural Health Monitoring of Intelligent Infrastructure. Torino, Italy. 2015;1-3.
SIM J, Blakebo Ｒ,Ough A, Williams MS, et al. Statistical model of crowd jumping loads [J]. Journal of Structural Engineering. 2008;134(12):1852-1861.
Matsumoto Y, Nishioka T, Shiojiri H, et al. Dynamic design of footbridges. IABSE-Proc [R]. P-17/78, S. IABSE-AIPC-IVBH, Zürich. 1978;1–15.
Salyards KA, Noss NC. Experimental evaluation of the influence of human-structure interaction for vibration serviceability [J]. Journal of Performance of Constructed Facilities. 2014;28(3):458-465.
Ellis B, Ji T, Bre. Human-structure interaction in vertical vibrations[J]. Proceedings of the Institution of Civil Engineers-Structures and Buildings. 1997;122(1):1-9.
CHEN Jun, WANG Ling, CHEN Bo, et al. Dynamic properties of human jumping load and its modeling: experimental study [J]. Journal of Vibration Engineering. 2014;27(1):16-24.
Abstract View: 589 times
PDF Download: 365 times