@article{ASKAR_ABDUKA_ASKAR_2020, title={SEISMIC VULNERABILITY ASSESSMENT OF REINFORCED CONCRETE STRUCTURES IN KURDISTAN REGION-IRAQ}, volume={23}, url={https://journal.uod.ac/index.php/uodjournal/article/view/913}, DOI={10.26682/csjuod.2020.23.2.10}, abstractNote={<p>Earthquakes are one of the most destructive natural disasters that cause losses of life, damage to <br>infrastructure and economic issues. Therefore, seismic risk assessment is essential for disaster mitigation, <br>disaster management, and emergency preparedness. Seismic vulnerability is one of the major factors for <br>evaluating the risk of earthquakes on reinforced concrete (RC) buildings. Seismic vulnerable RC buildings <br>are buildings located in a seismic region and either designed with an outdated design code or designed <br>without consideration for seismic activity. In the Kurdistan region of Iraq, most of the existing RC <br>buildings do not meet the typical current seismic standard requirements as the region was expected as <br>non-seismic region and followed the Iraqi seismic zone which considered as a low seismic region, therefore<br>these type of buildings is expected to suffer extensive damage during strong earthquakes. Vulnerable RC <br>buildings should be assessed in order to prevent future damage and new designed buildings need to meet <br>such codes. Previous studies, conducted assessment of four to six stories structures in order to evaluate <br>seismicity and to increase ductility of the evaluated structures based on member size. In this research, an <br>existing 8-storey RC building, located in Duhok governorate- Kurdistan region of Iraq, is redesigned and <br>evaluated. SeismoStruct V6.5 software was utilized for the purpose of simulating ductility and detailing<br>for the existing structure using pushover analysis. The ductility of the existing and the proposed <br>redesigned buildings then evaluated by obtaining inter-story drift and displacement based on capacity <br>curve. The original design is further evaluated in terms of reinforcement ratio and detailing by <br>redesigning the existing building in accordance with the ACI code 318, 2014 and using ETABS software <br>version 9.7 for analysing. Nonlinear static pushover analysis is used for seismic performance evaluation. <br>Inelastic static analysis procedures include capacity spectrum method and displacement coefficient <br>method. The structure is then analyzed to observe the yielding of the members and the adequacy of the <br>structural strength. The extent of damage experienced by the structure at the target displacement <br>represents the damage that would be experienced by the building when it is subjected to an earthquake. <br>As a conclusion, the redesigned structure showed 30% increasing in displacement when loaded in x-<br>direction based on both ultimate and calculated base shear while the increase in displacement was around <br>10% when loaded in the y-direction. This displacement increase led into improving the ductility in the <br>redesigned structure.</p&gt;}, number={2}, journal={Journal of Duhok University}, author={ASKAR, MAND and ABDUKA, KAMIRAN and ASKAR, LAWEND}, year={2020}, month={Dec.}, pages={116-130} }