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Response of buried arch bridge structure to seismic impact

 Response of buried arch bridge structure to seismic impact
Beitrag für IABSE Symposium: Long Span Bridges, Istanbul, Turkey, 26-28 April 2023, veröffentlicht in , S. 294-299
DOI: 10.2749/istanbul.2023.0294
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Dynamic analysis of the arch bridge is performed using time history of acceleration for the input motion. The prototype of the structure is a transport bridge in Bulgaria. Three real accelerograms o...
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Bibliografische Angaben

Medium: Tagungsbeitrag
Sprache(n): Englisch
Tagung: IABSE Symposium: Long Span Bridges, Istanbul, Turkey, 26-28 April 2023
Veröffentlicht in:
Seite(n): 294-299 Anzahl der Seiten (im PDF): 6
Seite(n): 294-299
Anzahl der Seiten (im PDF): 6
Jahr: 2023
DOI: 10.2749/istanbul.2023.0294
Abstrakt: Dynamic analysis of the arch bridge is performed using time history of acceleration for the input motion. The prototype of the structure is a transport bridge in Bulgaria. Three real accelerograms of strong earthquakes with motion characteristics typical for the Balkan Peninsula region are considered. Finite element model of the structure and a body of ground and filling material is created by the Plaxis 2D software. Dashpots are applied as supports of the soil-structure system to simulate the infinite soil space in the numerical FE analysis. The Hardening-Soil-Small (HSsmall) constitutive model is used for describing the soil mechanical behaviour. This model handles a large number of material parameters and takes into account the degradation of the soil stiffness subjected to seismic loading. An additional viscose attenuation of 5% for the soil is introduced. Analysis and interpretation of the results are carried out.
Stichwörter:
Bogenbrücke Zeitschrittanalyse finites Element