1 PhD Student, Earthq. Eng. & Disaster Manag. Inst., Istanbul Tech. Univ., Istanbul,

2 Asst. Prof., Earthquake Eng. & Disaster Manag. Institute, Istanbul Tech. Univ., Istanbul,

3 Asst. Prof., Department of Civil Engineering, Sakarya University, Sakarya,


The Büyük Mecidiye Mosque in Ortaköy, Istanbul, is an emblematic building with a unique Bosporus view. The original mosque was built in the 18th century. The current mosque, which was erected in its place, was ordered by the Ottoman Sultan Abdülmecid and built between 1854 and 1856. Its contractors were the famous Balyan’s and its Architect is Abdülhalim Efendi [1] .The structure is designed in the Neo-Baroque style. The masonry dome of the structure was substituted with a relatively light reinforced concrete dome in the 1960’s, due to serious structural cracks observed in the dome triggered by soil movements on the sea side [2]. This paper discusses the results of an assessment that focused on defining the seismic response of the structure. The results show that the RC dome transfers limited inertia forces to the substructure. Based on the analyses presented here, the dome is not expected to adversely affect the seismic response of the structure.



Keywords: Structural Response