Empirical Fragility Curves From Damage Data on RC Buildings After 2023 Kahramanmaras Earthquakes

by Ramazan Özgür İridere | Dec 12, 2024

Project Title: Empirical Fragility Curves From Damage Data on RC Buildings After 2023 Kahramanmaras Earthquakes

Funding Agency: Turkish Catastrophe Insurance Pool

Project Coordinator: Res. Asst. Tolga Çınar (Istanbul Technical University)

Investigator: Res. Asst. Yiğit Berat Kaya (Gebze Technical University)

Project Scholars: Ayça Aytemiz (Istanbul Technical University), Güneş Ataş (Istanbul Technical University), Kaan Günel (Istanbul Technical University)

Advisor: Prof. Dr. Alper İlki (Istanbul Technical University)

This study aims to develop empirical fragility curves based on post-earthquake damage assessment surveys conducted following the Kahramanmaraş earthquakes. Empirical fragility curves, constructed using observed damage data from previous seismic events, represent the probability of a specific building type reaching or exceeding a given damage state under a defined seismic hazard. During the derivation of these curves the coordinates of the structures, ground conditions, seismic actions, construction year, number of stories and damage states will be taken into account.

İTÜ Faculty of Civil Engineering

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It can be accepted that the history of ITU Civil Engineering Faculty was commenced in 1727 by the establishment of Humbarahane during the era of Damat İbrahim Paşa. However, this attempt was to no avail due to the martyrization of the studwents of this school by the Janissaries.


In 1734, during the grand viziership of Topal Osman Paşa, classes related to Civil Engineering was being taught in Hendesehane, which was founded in Üsküdar. Similarly, this school was also closed after three years due to the opposition of the Janissaries. The reasons of the tragedy that occured in Battle of Chesma, 1770 were inadequacy of the ships and the ignorance of the Ottoman Navy.


Although the Atlantic Map (1513) and the Map of Europe and the Mediterranean Sea (1523) by Piri Reis were the leading pieces of the era, Ottoman viziers were so ignorant that they claimed it was impossible for the Russian Baltic Fleet to reach the Mediterranean Sea assuming that there were no sea connection. With the proposal from Gazi Hasan Paşa and Baron de Tott, Mühendishane-i Bahri-i Humayun was established during the time of Sultan Mustafa III, aiming to train naval construction engineers. Since Ottoman Empire did not have any engineering schools at the time, military engineering classes were taught by French engineers beginning from 1784. French lecturers had to return to their country in 1788 with the increasing suppression from Austria and Russia, which were unwilling for the development and thriving of Ottoman Empire. In 1759, during the Grand Viziership of Koca Ragıp Paşa, Humbarahane was reopened in Karaağaç, Haliç (Golden Horn) and continued to teach even though it was incompetent. In 1792, Lağımcı Ocağı and Humbaracı Ocağı (Guild of Sappers) were established.