Computational Technology Resources - CCP

F.F. Campista, C.M.R. Gaspar, J.G. Santos da Silva, L.F. Costa Neves, "Human Comfort Assessment of a Steel-Concrete Composite Multi-Storey Building subjected to Aerobics", in J. Kruis, Y. Tsompanakis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 42, 2015. doi:10.4203/ccp.108.42

Keywords: building floors, structural dynamics, vibration analysis, human comfort.

Summary

The current design of steel-concrete composite floors might be susceptible to resonance phenomenon, causing undesirable vibrations in the frequency range that is the most noticeable to humans, i.e. 4Hz to 8Hz. In addition, it has been observed in design practice low floor structural damping ratios, which is related to the type of construction, materials, presence of non-structural elements, age and quality of the construction. Therefore, all these combinations make composite floors very susceptible to annoying vibrations induced by humans. Hence the main objective of the work, described in this paper, is to investigate the dynamic behaviour of a composite multi-storey building subjected to human rhythmic activities (aerobics). The structural model represents a typical interior floor bay of a commercial building used as a gym and is composed of three floor levels spanning 20m by 20m, with a total area of 3 x 400 meters squared. An extensive parametric study was developed with the aim of obtaining the peak accelerations, RMS and VDV values once the investigated building develops a multi-modal behaviour. Thus, based on two different mathematical formulations used for modelling human rhythmic actions (aerobics), the worst dynamic design cases i.e. a resonance phenomenon, were induced for each natural frequency of the building that lies in the human force frequency range. The human comfort of the building was investigated and the vibration transmissibility related to the steel columns was verified. Based on the results, the composite multi-storey building demonstrated high vibration levels that compromise the human comfort.

purchase the full-text of this paper (price £20)

go to the previous paper
go to the next paper
return to the table of contents
return to the book description
purchase this book (price £75 +P&P)

	Computational & Technology Resources an online resource for computational, engineering & technology publications
	not logged in - login
Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 108 PROCEEDINGS OF THE FIFTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: J. Kruis, Y. Tsompanakis and B.H.V. Topping Paper 42 Human Comfort Assessment of a Steel-Concrete Composite Multi-Storey Building subjected to Aerobics F.F. Campista¹, C.M.R. Gaspar¹, J.G. Santos da Silva² and L.F. Costa Neves³ ¹Civil Engineering Post-graduate Programme, State University of Rio de Janeiro, Brazil ²Structural Engineering Department, State University of Rio de Janeiro, Brazil ³Civil Engineering Department, University of Coimbra, Portugal doi:10.4203/ccp.108.42 purchase the full-text of this paper Full Bibliographic Reference for this paper F.F. Campista, C.M.R. Gaspar, J.G. Santos da Silva, L.F. Costa Neves, "Human Comfort Assessment of a Steel-Concrete Composite Multi-Storey Building subjected to Aerobics", in J. Kruis, Y. Tsompanakis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 42, 2015. doi:10.4203/ccp.108.42 Keywords: building floors, structural dynamics, vibration analysis, human comfort. Summary The current design of steel-concrete composite floors might be susceptible to resonance phenomenon, causing undesirable vibrations in the frequency range that is the most noticeable to humans, i.e. 4Hz to 8Hz. In addition, it has been observed in design practice low floor structural damping ratios, which is related to the type of construction, materials, presence of non-structural elements, age and quality of the construction. Therefore, all these combinations make composite floors very susceptible to annoying vibrations induced by humans. Hence the main objective of the work, described in this paper, is to investigate the dynamic behaviour of a composite multi-storey building subjected to human rhythmic activities (aerobics). The structural model represents a typical interior floor bay of a commercial building used as a gym and is composed of three floor levels spanning 20m by 20m, with a total area of 3 x 400 meters squared. An extensive parametric study was developed with the aim of obtaining the peak accelerations, RMS and VDV values once the investigated building develops a multi-modal behaviour. Thus, based on two different mathematical formulations used for modelling human rhythmic actions (aerobics), the worst dynamic design cases i.e. a resonance phenomenon, were induced for each natural frequency of the building that lies in the human force frequency range. The human comfort of the building was investigated and the vibration transmissibility related to the steel columns was verified. Based on the results, the composite multi-storey building demonstrated high vibration levels that compromise the human comfort. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £75 +P&P)
Back to top	©Civil-Comp Limited 2023 - terms & conditions