‘The Effects of Soil-Structure Interactions on Building Performance in Liquefied Soils’ are Investigated for the First Time at ITU, Through Numerical and Analytical Studies.

by Ramazan Özgür İridere | Dec 13, 2023

Project Title: Development of the Design Criteria for Buildings in Liquefiable Soils with Emphasize on Foundation Type and Soil-Structure Interaction
Project Type: TUBITAK 1001 - Earthquake Special Call
Project Principal Investigator: Assoc. Prof. Dr. Esra Ece BAYAT

Summary: It aims to investigate whether the design of buildings on such soils should be considered by taking into account the soil-structure interaction, depending on the foundation type. Especially during the February 6 Kahramanmaraş Earthquake series, it was observed that the building performances on such grounds differ depending on the foundation types. It is aimed to develop design criteria that requires the determination of the acceleration and displacement time histories that the buildings will be exposed to by considering the liquefying soil. Also, the design criteria should guide to obtain the building performance depending on the response of different foundations built on such soils. For this purpose, both numerical and experimental studies are carried out.
Considering the kinematic effects in the liquefied soil, the accelerations and deformations that will reach the foundation will be obtained by parametric numerical analysis for different foundation types (mat foundation, continuous foundation, piled foundation) built at the surface and in cases where there is a certain foundation depth. These acceleration and deformation records will be solved for the inertia interaction of the superstructure, and the settlements and rotations that will occur in the building will be determined.

İTÜ Faculty of Civil Engineering

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.