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An Assessment of the Seismic Performance of the Historic Tigris Bridge

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Document pages: 10 pages

Abstract: Turkey is a country that is vulnerableto earthquakes and has experienced many major earthquakes that completely destroyedor caused significant damage to numerous historic structures. Today, using computersoftware, it is important to numerically model and analyze historic structures that need significant restoration and strengthening,to evaluate them from a perspective of seismic resistance, and to reinforce themwithout altering their originality. In this study, a finite element model of thehistoric Tigris Bridge on the Tigris River was created. First, the stresses anddeformation caused by its own weight were determined. Subsequently, dynamic analyseswere performed in the time domain using past earthquake ground motion records. Displacementand stress values obtained for each earthquake record in these time domain analysis were compared to each otherto evaluate the seismic behavior of the bridge comparatively. The seismic performanceof the bridge was determined on the basis of the “Guidelines on the Management ofEarthquake Risks for Historic Structures” published by the Directorate General ofReligious Foundations in Turkey.

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