Turkey is a rustic that is prone to earthquakes and has experienced many important earthquakes that completely destroyed or prompted big damage to numerous ancient systems. these days, using computer software, it’s far important to numerically Tigris Bridge model and examine historical structures that want sizeable healing and strengthening, to assess them from a perspective of seismic resistance, and to boost them with out changing their originality. on this take a look at, a finite detail model of the ancient Tigris Bridge on the Tigris River changed into created. First, the stresses and deformation resulting from its own weight were decided. eventually, dynamic analyses were accomplished inside the time domain the usage of past earthquake floor motion records. Displacement and stress values received for each earthquake file in those time area evaluation had been as compared to every other to assess the seismic conduct of the bridge comparatively. The seismic performance of the bridge became decided on the premise of the “pointers at the control of Earthquake risks for historic systems” posted by the Directorate fashionable of spiritual Foundations in Turkey.
The ancient Tigris Bridge in Diyarbakır is an essential and outstanding structure in phrases of its size and structure and has emerge as a symbol of the said metropolis. The bridge is 3 km from the city middle and is positioned at a point that links the middle of the town to the Township of Bağıvar and numerous villages. several opinions were expressed approximately the date when the bridge changed into first built. in keeping with Van Bercheh and Albert Gabriel, any other bridge stood in the modern area of the Tigris Bridge in ancient instances [1] . An epitaph declaring that during Diyarbakır, which got here below Islamic rule in 639, Umayyad Caliph Hisham commenced repairing a collapsed bridge in 742 – 743 and that the construction paintings stopped after his dying. it’s also recognised that the eastern armies of the Roman Empire besieged Diyarbakir unsuccessfully in 974 and they destroyed this bridge when they withdrew [2] .
The bridge is assumed to were destroyed and rebuilt in part or Tigris Bridge completely numerous instances. The maximum latest and most accurate known production date of the bridge is primarily based on the inscription marked on the bridge. in step with this inscription, the bridge become constructed in 457 A.H. (1065 ad).