Reliability-based design model for rubble-mound coastal defense structures

Arıkan, Gökçe
In this thesis, a new computer model (tool) for the reliability-based design of rubble-mound coastal defense structures is developed in which design is carried out in a user frienly way giving outputs on time variant reliability for the predetermined lifetimes and damage levels. The model aims to perform the following steps: 1. Determine the sources of uncertainties in design parameters 2. Evaluate the damage risk of coastal structures which are at design stage and are recently constructed. 3. Study the sensitivity of limit state functions to the design parameters. Different from other reliability studies on coastal projects, a new design computer program is developed that can be easily used by everyone working in coastal engineering field.


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İnsel, Işıl; Yalçıner, Ahmet Cevdet; Department of Civil Engineering (2009)
In this thesis study; mechanism and modeling of tsunamis generated by landslides are investigated. Landslide parameters affecting the surface wave characterisics are studied. In order to understand occurance of this kind of tsunamis, among many historical tsunamis, the ones that are triggered by landslides are detected and studied. The generation of the landslide generated tsunamis are modeled using TWO-LAYER model, which solves nonlinear long wave equations simultaneously within two interfacing layers with...
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Completion, pricing and calibration in a Lévy market model
Yılmaz, Büşra Zeynep; Hayfavi, Azize; Erol, Işıl; Department of Financial Mathematics (2010)
In this thesis, modelling with Lévy processes is considered in three parts. In the first part, the general geometric Lévy market model is examined in detail. As such markets are generally incomplete, it is shown that the market can be completed by enlarging with a series of new artificial assets called “power-jump assets” based on the power-jump processes of the underlying Lévy process. The second part of the thesis presents two different methods for pricing European options: the martingale pricing approach...
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This paper presents and discusses issues related to structural identification, calibrated model-based load rating, and sensitivity of rating to the analytical model, along with experimental studies conducted on an existing concrete-deck-on-steel-stringer bridge. The proposed model-updating procedure uses collected dynamic data (mode shapes, modal frequencies, and order of modes) as well as static deformed shape information. Two-dimensional (2D) grid models were developed to successfully simulate the transve...
Citation Formats
G. Arıkan, “Reliability-based design model for rubble-mound coastal defense structures,” Ph.D. - Doctoral Program, Middle East Technical University, 2010.