Turkey is a country that is susceptible to earthquakes and has skilled many principal earthquakes that Seismic Performance absolutely destroyed or caused giant harm to severa ancient systems. nowadays, using computer software, it’s far crucial to numerically version and examine historic structures that want sizable recovery and strengthening, to evaluate them from a angle of seismic resistance, and to Seismic Performance reinforce them with out changing their originality. on this examine, a finite detail version of the historic Tigris Bridge at the Tigris River turned into created. First, the stresses and deformation resulting from its own weight had been decided. in the end, dynamic analyses were finished inside the time area using beyond earthquake ground movement statistics. Displacement and pressure values received for each earthquake record in these time area Seismic Performance evaluation had been in comparison to every different to evaluate the seismic conduct of the bridge relatively. The seismic performance of the bridge was determined on the basis of the “pointers at the management of Earthquake risks for historic structures” published by way of the Directorate widespread of spiritual Foundations in Turkey.
The historic Tigris Bridge in Diyarbakır is an critical and distinguished structure in terms of its size and structure and has come to be a image of the said city. The bridge is 3 km from the city center and is positioned at a factor that hyperlinks the middle of the city to the Township of Bağıvar and several villages. numerous opinions have been expressed about the date while the bridge became first built. consistent with Van Bercheh and Albert Gabriel, another bridge stood within the cutting-edge location of the Tigris Bridge in historic instances [1] . An epitaph declaring that in Diyarbakır, which came beneath Islamic rule in 639, Umayyad Seismic Performance Caliph Hisham started repairing a collapsed bridge in 742 – 743 and that the construction paintings stopped after his loss of life. it’s also acknowledged that the japanese armies of the Roman Empire besieged Diyarbakir unsuccessfully in 974 and that they destroyed this bridge after they withdrew [2] .
The bridge is thought to had been destroyed and rebuilt partially or completely numerous times. The most recent and most correct regarded production date of the bridge is primarily based on the inscription marked on the bridge. consistent with this inscription, the bridge was constructed in 457 A.H. (1065 advert).
The Tigris Bridge is considered to fall in the category of multi-span flat-top bridges. The Seismic Performance bridge is 172 m long. Its width varies among 5.45 and 6.24 m over the primary five spans and will increase to the variety nine.sixty nine – 10.20 m from the 5th span on. the road over the bridge is presently included with the original paving stones following recovery. The parapet top is eighty five cm on the give up and rises to as a good deal as 155 cm near the middle (figure 1). The capstones are nine capped pyramidal flood splitters [fender piles] stand on the north (upstream) side of the bridge. Flood splitters 1, 2, 3, and four (S1, S2, S3, S4) are decrease in height than the others.