Cambazoğlu, Selim
Koçkar, Mustafa Kerem
Akgün, Haluk
There are three main components required for a seismic hazard assessment: a seismic source model, an earthquake catalogue and a ground motion prediction relationship. Identification of a spatially accurate segmentation model is the initial step in a hazard assessment. Therefore, in this study, a generalized seismic source model for the Eastern Marmara Region along the North Anatolian Fault System is generated. The scientific studies conducted in the region have resulted in various fault and fault segmentation interpretations. In order to combine these studies and to form a generalized and spatially concordant seismic source model, lineament extraction from ASTER satellite imagery was performed and segmentation was defined based on the destructive earthquakes and the major fault lines in the region. Furthermore, the necessary parameters such as fault geometry (width) and slip rate data were included in the model by using the literature sources and the earthquake catalogue. Finally, a probabilistic seismic hazard assessment was performed for the Düzce city center in order to check the applicability of the generated seismic source model.
4. Uluslararası Deprem Mühendisliği ve Sismoloji Konferansı


Evaluation and selection of ground motion intensity measures for nonlinear seismic demand and fragility analysis of MDOF systems
Kadaş, Koray; Yakut, Ahmet; Department of Civil Engineering (2021-5-21)
In performance-based seismic design methodology, intensity measures are thought to be key parameters of ground motion records that relate the seismic hazard levels with the structural response or damage. Therefore, it is important to identify efficient intensity measures that are capable of reducing the variability in seismic demand predictions. There exist several simple-to-advanced scalar and vector ground motion intensity measures; however, the literature is limited in the number of comparative studies i...
Comparison of ASCE/SEI standard (2010) and modal pushover based ground motion scaling procedures for pre-tensioned concrete bridges
Özgenoğlu, Müge; Arıcı, Yalın; Department of Civil Engineering (2015)
The seismic design and evaluation of large bridges is a demanding task owing to the significant size and the structural characteristics of these systems. Although elastic analysis methods are regarded as sufficient for common, uncritical bridges; complex analysis methods such as non-linear time history analysis (NTHA) are often required for non-standard and/or important bridges. The selection of the ground motions that will be used in non-linear time history analysis is a crucial task in this regard as the ...
Ground motion prediction equations based on simulated ground motions
Gür, Kader; Askan Gündoğan, Ayşegül; Kale, Özkan; Department of Earthquake Studies (2018)
Ground Motion Prediction Equations (GMPEs) are one of the key elements in seismic hazard assessment to estimate ground motion intensity measures by basically taking into account source, path and site effects. Most of the existing predictive models are derived from databases compiled from real (or observed) ground motion data. However, in data-poor regions, a novel practice to develop new GMPEs is to use simulated or hybrid ground motion datasets for performing reliable seismic hazard analysis. Simulations o...
Sharghivand, Naeimeh; Aşık, Mehmet Zülfü; Department of Engineering Sciences (2022-8-11)
In this study, the N-wave profile is fitted to the seafloor deformation for a large set of earthquake scenarios, i.e., assuming that the seafloor deformation resulting from an earthquake instantaneously transfers to the sea surface. Hence, the N-wave parameters are identified with respect to the earthquake source parameters allowing to express the initial tsunami profile in terms of the earthquake source parameters. Then, the maximum tsunami runup is presented through the earthquake fault plane parameters u...
Linear modal combination procedure for structural dynamics
Tanışer, Sadun; Sucuoğlu, Haluk; Department of Civil Engineering (2013)
Earthquake engineering practice utilizes different analysis procedures in the estimation of seismic demands on structures. These procedures are mainly divided into two groups as static and dynamic procedures. Dynamic procedures are more accurate than the static procedures since they include the entire history of any response parameter during the ground motion. Nevertheless, there are also approximate but much simpler static analysis procedures that overcome high computational demands and inherent difficulti...
Citation Formats
S. Cambazoğlu, M. K. Koçkar, and H. Akgün, “ASTER UYDU GÖRÜNTÜLERİNDEN ÇİZGİSELLİK ANALİZİ YAPILARAK VE LİTERATÜR KULLANILARAK DOĞU MARMARA BÖLGESİ İÇİN SİSMİK KAYNAK MODELİ OLUŞTURULMASI,” presented at the 4. Uluslararası Deprem Mühendisliği ve Sismoloji Konferansı, Eskişehir, 2017, Accessed: 00, 2021. [Online]. Available: