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G.L. Debona, J.G. Santos da Silva, "Vibration Serviceability Assessment of Footbridges under Pedestrian Induced Excitation Based on Biodynamic Loading Models", 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 41, 2015. doi:10.4203/ccp.108.41

Keywords: footbridges, structural dynamics, dynamic analysis, biodynamic models, human comfort, excessive vibrations, ANSYS.

Summary

A number of papers related to the vibration serviceability assessment of footbridges based on the modelling of the pedestrian-structure interaction using biodynamic models have been published. Therefore, this paper contributes to this scenario by developing a more realistic modelling strategy of the pedestrian-footbridge system taking into account the dynamic characteristics of the pedestrians (mass, stiffness and damping), when crossing the footbridge. In this way, the investigated structural model is related to an existing footbridge located in the campus of the State University of Rio de Janeiro, Brazil. The structural system is based on an internal reinforced concrete footbridge spanning 24.4 m, constructed with concrete beams and slabs, and being currently used as a pedestrian crossing. The numerical model adopted the usual mesh refinement techniques present in finite element simulations, based on the use of ANSYS program. This numerical model enabled a complete dynamic evaluation of the footbridge especially in terms of human comfort and its associated vibration serviceability limit states. Based on an extensive parametric analysis considering the biodynamic dynamic loading models, the structural system dynamic response, was obtained and compared to the limiting values proposed by several authors and design standards.

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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: 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 41 Vibration Serviceability Assessment of Footbridges under Pedestrian Induced Excitation Based on Biodynamic Loading Models G.L. Debona¹ and J.G. Santos da Silva² ¹Civil Engineering Post-graduate Programme, State University of Rio de Janeiro, Brazil ²Structural Engineering Department, State University of Rio de Janeiro, Brazil doi:10.4203/ccp.108.41 purchase the full-text of this paper Full Bibliographic Reference for this paper G.L. Debona, J.G. Santos da Silva, "Vibration Serviceability Assessment of Footbridges under Pedestrian Induced Excitation Based on Biodynamic Loading Models", 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 41, 2015. doi:10.4203/ccp.108.41 Keywords: footbridges, structural dynamics, dynamic analysis, biodynamic models, human comfort, excessive vibrations, ANSYS. Summary A number of papers related to the vibration serviceability assessment of footbridges based on the modelling of the pedestrian-structure interaction using biodynamic models have been published. Therefore, this paper contributes to this scenario by developing a more realistic modelling strategy of the pedestrian-footbridge system taking into account the dynamic characteristics of the pedestrians (mass, stiffness and damping), when crossing the footbridge. In this way, the investigated structural model is related to an existing footbridge located in the campus of the State University of Rio de Janeiro, Brazil. The structural system is based on an internal reinforced concrete footbridge spanning 24.4 m, constructed with concrete beams and slabs, and being currently used as a pedestrian crossing. The numerical model adopted the usual mesh refinement techniques present in finite element simulations, based on the use of ANSYS program. This numerical model enabled a complete dynamic evaluation of the footbridge especially in terms of human comfort and its associated vibration serviceability limit states. Based on an extensive parametric analysis considering the biodynamic dynamic loading models, the structural system dynamic response, was obtained and compared to the limiting values proposed by several authors and design standards. 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)
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