Investigation of the dynamic response and effect of soil properties of Arroyo Bracea II bridge in Madrid-Sevilla High-Speed railway line through experimental analyses

Abstract In this contribution the authors include results and conclusions from an experimental and numerical analysis of a railway bridge belonging to the Madrid-Sevilla High-Speed railway line in Spain. This structure is monitored due to its short length and typology, which make it susceptible to experience high transverse vibration levels. During the in-situ tests the soil properties at the site were obtained. Also, the response of the structure under the circulation of railway convoys was measured at several points of the deck and at the abutments. From the experimental measurements the modal parameters of the bridge are identified. Finally the experimental results are compared to those provided by a finite element numerical model in the time and frequency domains. Conclusions are extracted regarding the structure performance and the adequacy of the numerical model implemented.

[1]  Carlos Rebelo,et al.  Dynamic behaviour of twin single-span ballasted railway viaducts — Field measurements and modal identification , 2008 .

[2]  Andreas Andersson,et al.  Dynamic behaviour of a short span soil–steel composite bridge for high-speed railways – Field measurements and FE-analysis , 2014 .

[3]  Geert Degrande,et al.  Determination of the material damping ratio in the soil from SASW tests using the half-power bandwidth method and the Arias intensity , 2010 .

[4]  M. D. Martínez-Rodrigo,et al.  Dynamic performance of existing high-speed railway bridges under resonant conditions retrofitted with fluid viscous dampers , 2010 .

[5]  Kai Liu,et al.  Experimental and numerical analysis of a composite bridge for high-speed trains , 2009 .

[6]  Randall J. Allemang,et al.  A Correlation Coefficient for Modal Vector Analysis , 1982 .

[7]  Edwin Reynders,et al.  System Identification Methods for (Operational) Modal Analysis: Review and Comparison , 2012 .

[8]  L. Frýba.  Dynamic behaviour of bridges due to high speed trains , 2008 .

[9]  Pedro Galvín,et al.  On the basic phenomenon of soil-structure interaction on the free vibration response of beams: Application to railway bridges , 2016 .

[10]  Raimundo Delgado,et al.  Updating and validation of the dynamic model of a railway viaduct with precast deck , 2014 .

[11]  Mahir Ülker-Kaustell,et al.  Simplified analysis of the dynamic soil–structure interaction of a portal frame railway bridge , 2010 .

[12]  Raimundo Delgado,et al.  Finite element model updating of a bowstring-arch railway bridge based on experimental modal parameters , 2012 .

[13]  Pedro Galvín,et al.  Soil-structure interaction in resonant railway bridges , 2013 .

[14]  Geert Lombaert,et al.  Ground-borne vibration due to static and dynamic axle loads of InterCity and high-speed trains , 2009 .