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Memorias de investigación
Artículos en revistas:
Measuring dynamic effects on underpasses of high-speed railway lines
Año:2012
Áreas de investigación
  • Ingenierías
Datos
Descripción
Underpasses are common in modern railway lines. Wildlife corridors and drainage conduits often fall into this category of partially buried structures. Their dynamic behaviour has received far less attention than that of other structures such as bridges, but their large number makes their study an interesting challenge in order to achieve safe and cost-effective structures. As ballast operations are a key life cycle cost, and excessive vibrations increase the need of ballast regulation in order to ensure track geometry, special attention is paid to accelerations, the values of which should be limited to avoid track instability according to Eurocode. In this paper, the data obtained during on site measurements on culverts belonging to a Spanish high-speed train line are presented. A set of six rectangular-shaped, closed-frame underpasses were monitored under traffic loading. Acceleration records at different points of the structures are presented and discussed. They reveal a non-uniform dynamic response of the roof-slab, with the highest observed values below the occupied track. Also, they indicate that the dynamic response is important up to frequencies higher than those usually observed for standard simply supported bridges. Finally, they are used to obtain a heuristic rule to estimate acceleration levels on the roof-slab.
Internacional
Si
JCR del ISI
Si
Título de la revista
Structure And Infrastructure Engineering
ISSN
1573-2479
Factor de impacto JCR
0,966
Información de impacto
Volumen
DOI
DOI:10.1080/15732479.2012.692698
Número de revista
Desde la página
1
Hasta la página
16
Mes
MAYO
Ranking
44; Q2
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Jaime Vega Domínguez (UPM)
  • Autor: Lutz Karl Heinz Hermanns (UPM)
  • Autor: Enrique Alarcon Alvarez (UPM)
  • Autor: Alberto Fraile de Lerma (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Ingeniería Sísmica: Dinámica de Suelos y Estructuras
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