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C.M.R. Gaspar¹, J.G. Santos da Silva², F.J. da C.P. Soeiro³, L.F. Costa Neves⁴ and T. Sá-Marques⁴

¹Civil Engineering Post-graduate Programme, State University of Rio de Janeiro, Brazil
²Structural Engineering Department, State University of Rio de Janeiro, Brazil
³Mechanical Engineering Department, State University of Rio de Janeiro, Brazil
⁴Civil Engineering Department, University of Coimbra, Portugal

Keywords: composite floors, dynamic analysis, finite element modelling, human comfort, excessive vibrations, vibration control, optimisation techniques..

Summary

The increasing incidence of problems with the vibration of building steel-concrete composite floors arising from human rhythmic activities led to a specific design criterion to be addressed in structural design. The current investigation indicated that human rhythmic activities could induce the floors to reach unacceptable vibration levels leading to a violation of human comfort criteria. Thus, the main objective of this paper is to develop a structural control strategy aiming to reduce the floor excessive vibrations based on the use of tuned mass damper (TMD) systems. The proposed analysis methodology was focused on the TMD system's dynamic characteristics optimisation using the sub-problem approximation method. The investigated structural model was based on a steel-concrete composite floor of span 10m by 10m, with a total area of 100 square metres. This system represents a typical interior floor bay of a commercial building for gym purposes, and designed according to the usual ULS and SLS Eurocode provisions. The results have shown that optimisation techniques are very useful, in order to improve the building steelconcrete composite floors vibration control.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 106 PROCEEDINGS OF THE TWELFTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY Edited by: Paper 11 Vibration Control of Building Steel-Concrete Composite Floors subjected to Aerobics based on Optimization Techniques C.M.R. Gaspar¹, J.G. Santos da Silva², F.J. da C.P. Soeiro³, L.F. Costa Neves⁴ and T. Sá-Marques⁴ ¹Civil Engineering Post-graduate Programme, State University of Rio de Janeiro, Brazil ²Structural Engineering Department, State University of Rio de Janeiro, Brazil ³Mechanical Engineering Department, State University of Rio de Janeiro, Brazil ⁴Civil Engineering Department, University of Coimbra, Portugal doi:10.4203/ccp.106.11 purchase the full-text of this paper Full Bibliographic Reference for this paper , "Vibration Control of Building Steel-Concrete Composite Floors subjected to Aerobics based on Optimization Techniques", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 11, 2014. doi:10.4203/ccp.106.11 Keywords: composite floors, dynamic analysis, finite element modelling, human comfort, excessive vibrations, vibration control, optimisation techniques.. Summary The increasing incidence of problems with the vibration of building steel-concrete composite floors arising from human rhythmic activities led to a specific design criterion to be addressed in structural design. The current investigation indicated that human rhythmic activities could induce the floors to reach unacceptable vibration levels leading to a violation of human comfort criteria. Thus, the main objective of this paper is to develop a structural control strategy aiming to reduce the floor excessive vibrations based on the use of tuned mass damper (TMD) systems. The proposed analysis methodology was focused on the TMD system's dynamic characteristics optimisation using the sub-problem approximation method. The investigated structural model was based on a steel-concrete composite floor of span 10m by 10m, with a total area of 100 square metres. This system represents a typical interior floor bay of a commercial building for gym purposes, and designed according to the usual ULS and SLS Eurocode provisions. The results have shown that optimisation techniques are very useful, in order to improve the building steelconcrete composite floors vibration control. 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 £65 +P&P)
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