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J.M. Santos de Souza¹, J.G. Santos da Silva², L.F. Costa Neves³ and R.M.M.P. Matos³

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.106.13

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J.M. Santos de Souza, J.G. Santos da Silva, L.F. Costa Neves, R.M.M.P. Matos, "A Probabilistic Approach to Detect Excessive Vibration in Steel-Concrete Composite Footbridges", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 13, 2014. doi:10.4203/ccp.106.13

Keywords: steel-concrete composite footbridges, probabilistic approach, structural dynamics, dynamic analysis, excessive vibration, human comfort..

Summary

Nowadays, pedestrian footbridges are more and more becoming modern landmarks of urban areas. Designers seem to continuously move the safety border, to increase slenderness and lightness of their structures. On the other hand, pedestrian footbridges are carried out as light weight structures with low frequencies and low damping. These facts have generated very slender footbridges, sensitive to dynamic excitation and consequently changed the serviceability and ultimate limit states associated to their design. Based on this scenario, in this paper a probabilistic approach is developed to allow the structural engineers to assess the variation of the human walking force generated by different pedestrians and their impact on the dynamic response of pedestrian footbridges. The human walking is modelled based on the random nature of the dynamic load induced by different pedestrians. The investigated reference structure is based on a composite footbridge made of steel beams and a reinforced concrete deck and built in the Institute of Traumatology and Orthopaedics (INTO) campus, Rio de Janeiro, Brazil. This probabilistic approach provided a more realistic assessment of the pedestrian footbridges dynamic response and is very useful to detect human-induced excessive vibrations.

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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 13 A Probabilistic Approach to Detect Excessive Vibration in Steel-Concrete Composite Footbridges J.M. Santos de Souza¹, J.G. Santos da Silva², L.F. Costa Neves³ and R.M.M.P. Matos³ 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.106.13 purchase the full-text of this paper Full Bibliographic Reference for this paper J.M. Santos de Souza, J.G. Santos da Silva, L.F. Costa Neves, R.M.M.P. Matos, "A Probabilistic Approach to Detect Excessive Vibration in Steel-Concrete Composite Footbridges", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 13, 2014. doi:10.4203/ccp.106.13 Keywords: steel-concrete composite footbridges, probabilistic approach, structural dynamics, dynamic analysis, excessive vibration, human comfort.. Summary Nowadays, pedestrian footbridges are more and more becoming modern landmarks of urban areas. Designers seem to continuously move the safety border, to increase slenderness and lightness of their structures. On the other hand, pedestrian footbridges are carried out as light weight structures with low frequencies and low damping. These facts have generated very slender footbridges, sensitive to dynamic excitation and consequently changed the serviceability and ultimate limit states associated to their design. Based on this scenario, in this paper a probabilistic approach is developed to allow the structural engineers to assess the variation of the human walking force generated by different pedestrians and their impact on the dynamic response of pedestrian footbridges. The human walking is modelled based on the random nature of the dynamic load induced by different pedestrians. The investigated reference structure is based on a composite footbridge made of steel beams and a reinforced concrete deck and built in the Institute of Traumatology and Orthopaedics (INTO) campus, Rio de Janeiro, Brazil. This probabilistic approach provided a more realistic assessment of the pedestrian footbridges dynamic response and is very useful to detect human-induced excessive vibrations. 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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