Advanced Seismic Design Considerations for Highway and High Speed Railway Bridges in Spain

Spain, in the south west of Europe, has a moderated seismic hazard caused by the proximity of the Azores and the Mediterranean Faults with basic seismic acceleration under 0,25g. The great development reached in the last fifteen years involving highway and high speed railway (HSR) infrastructures has forced the improvement of technology, the constructive procedures and, also, specific considerations for the seismic actions. The paper gives an overview of the Eurocode and Spanish regulations, insisting on the ductility prescriptions. The paper will present several highway bridges that were designed by TYPSA with the capacity method, which show the control of the ductility required versus available and other factors involved. Special interest has been focused on the case of long high speed railway viaducts. In order to control the braking forces avoiding multiple rail dilatation devices, the deck is usually anchored at one fixed point, typically one of the abutments. When the seismic event must be considered the induced seismic forces could reach high levels. Two HSR viaducts are discussed, designed with isolating and damping devices, combined with shock transmission units (adjusted to assume the braking forces), without increasing the costs.

• Corporate Authors:

  Multidisciplinary Center for Earthquake Engineering Research

  State University of New York, 107 Red Jacket Quadrangle, P.O. Box 610025
  Buffalo, NY  United States  14261-0025
• Authors:
  • Jimenez, Jose-Luis Sanchez
• Conference:
  • Sixth National Seismic Conference on Bridges and Highways
  • Location: Charleston SC, United States
  • Date: 2008-7-28 to 2008-7-30
• Publication Date: 2008

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Maps; Photos;
• Pagination: 9p
• Monograph Title: Sixth National Seismic Conference on Bridges and Highways: Seismic Technologies for Extreme Loads

Subject/Index Terms

• TRT Terms: Braking performance; Bridge abutments; Damping (Physics); Ductility; Earthquake resistant design; Faults; Highway bridges; Railroad bridges; Seismicity; Technology; Viaducts
• Identifier Terms: Eurocode
• Uncontrolled Terms: Shock transmission devices
• Geographic Terms: Mediterranean Region; Spain
• Subject Areas: Bridges and other structures; Highways; Railroads; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01356879
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 16 2011 2:51PM