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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Antiseismic design of viaducts SG25, SG27 and SG28 in the high speed railway line Athens-Thessaloniki
Author(s): Santamaría Caballero, G.; Izquierdo López, D.; Martín Nieto, C.; Abad González, I.
Appears on pages(s): 41 - 59
Keywords: earthquake, isolation, pendulum, damper, non-linearity.
Abstract:The Lianokladi-Domokos Section of the New Double Track High Speed Railway Line between Athens and Thessaloniki includes some postensioned concrete box girder bridges. The structures SG25 y SG28 were incrementally launched from one abutment and the structure SG27 was built following a span-by-span construction on conventional falsework.Due to the high seismicity of the area (ac = 0,39 g), an isolation-damping strategy has been adopted by means of various anti-seismic devices on piers and abutments: elastomeric bearings, spherical bearings (guided or fixed), pendulum bearings and shock transmitters-dampers (transversal and longitudinal). Thus, seismic energy input is reduced whilst damping limits deck movements. A complete dynamic non-linear time-history was conducted, applying seven pairs of real accelerograms to the models of the bridges.
ACI International Partner, ACHE Spain, International Partner Access.
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