ISSN: 2147-2955 / E-ISSN: 2148-9386
Estimation of Probabilistic Seismic Hazard for Marine Structure: A Case Study for Haydarpasa Port [JEMS Maritime Sci]
JEMS Maritime Sci. Ahead of Print: JEMS-26576

Estimation of Probabilistic Seismic Hazard for Marine Structure: A Case Study for Haydarpasa Port

Aydin Mert
Department Of Earthquake Engineering, Kandilli Observatory And Earthquake Research Institute, Bogazici University, Istanbul, Turkey

The size and importance of maritime transportation in world trade are well known. The number of ports, which is one of the most important elements of maritime transportation, is increasing day by day not only in our country but also in the world. Many active fault systems in our country are located at sea. Especially in the Marmara region, most active branches of the North Anatolian Fault system pass through the Marmara Sea. When off shore structures such as ports are constructed in high seismicity zones such as the Marmara Sea, production of site-specific seismic hazard studies becomes a necessity to reduce the seismic risk of the offshore structures. In the year 2007, the first Turkish Seismic Design Code for Port Structures was published which introduced the new design concepts in the seismic design of off shore structures. According to this code, it can be finalized in three basic steps. The first one is assessment of regional seismicity; the second is the estimation of geotechnical hazards; and finally soil-structure interaction analysis of offshore structures. Nowadays, the first Turkish Seismic Design Code for Port Structures is on the verge of a major update which was published as a draft report in May 20019. In this manuscript, site-specific probabilistic seismic hazard analysis is needed to determine the seismic hazard associated with typical port sites. Considering this new draft code as a guideline document, we developed consistent seismic hazard studies for the off shore structures within the Haydarpasa port sites. Unlike the old one, in this new document, four different levels of ground motion were identified, i.e., minimum damage level earthquake (TR=72), limited damage level earthquake (TR=144), controlling damage level earthquake (TR=475), and maximum considered earthquake (TR=2475).

Keywords: Probabilistic Seismic Hazard Assessment, Marine Structures, Uniform Hazard Spectra,



Corresponding Author: Aydin Mert, Türkiye
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