Reliability-Based Risk Assessment of Rubble Mound Breakwaters Under Tsunami Attack

2002-09-01
In the reliability-based risk assessment, the second order reliability index (beta II) method and the Conditional Expectation Monte Carlo (CEMC) simulation were utilised in order to analyse the safety levels of Haydarpasa Port main breakwater, Sea of Marmara, Turkey. The failure probability was forecasted in the beta II method by approximating the Hudson performance surface with a second-degree polynomial having an equal curvature at the design point where the design and structural parameters were taken into consideration. In the past, applications of reliability-based risk assessment methodology in Turkey for design conditions, only wave characteristics, tidal range, storm surge, wave set-up and the structural system parameters were included. Tsunami risk was not considered a major design parameter and was not included in the computations.
JOURNAL OF COASTAL RESEARCH

Suggestions

Maritime accidents forecast model for bosphorus
Küçükosmanoğlu, Alp; Ergin, Ayşen; Department of Civil Engineering (2012)
A risk assessment model (MAcRisk) have been developed to forecast the probability and the risk of maritime accidents on Bosphorus. Accident archives of Undersecretariat Maritime Affairs Search and Rescue Department, weather conditions data of Turkish State Meteorological Service and bathymetry and current maps of Office of Navigation, Hydrography and Oceanography have been used to prepare the model input and to forecast the accident probability. Accident data has been compiled according to stated sub-region...
Response Surface Based Performance Analysis of an Air-Defense Missile System
Gunaydin, Kerem; Cimen, Tayfun; Tekinalp, Ozan (2014-03-08)
The overall performance of an Air Defense Missile System (ADMS), identified as the probability of hit (PoH) performance, is evaluated using full grid analysis approach and response surface approach. For this purpose, a very detailed six degrees of freedom missile simulation model is employed, which contains over 1000 parameters. These parameters are varied with prescribed uncertainties for performing Monte-Carlo runs to estimate the PoH of a hypothetical missile. Although such a high-fidelity model is neces...
Sensitivity and uncertainty analysis for a radioecological model
Unver, O.; Kocar, C.; Tuncel, G. (Carl Hanser Verlag, 2020-10-01)
Uncertainty and sensitivity analysis were conducted for a radioecological model which was developed and applied for severe accident scenario for Akkuyu NPP in Turkey. Uncertainty was investigated in the doses and activity concentrations. Sensitivity analysis was conducted to find out most influencing parameters on the doses. 96 parameters, related with foodstuffs, feedstuffs and grass, inhalation rate and reduction factor for external irradiation, and transfer of Cs-137, Cs-134 and I-131 isotopes, were stud...
Defect acceptability under full-scale fretting fatigue tests for railway axles
Foletti, S.; Beretta, S.; Gurer, G. (2016-05-01)
This paper presents a new approach based on the application of a multiaxial high cycle fatigue criterion together with the use of El-Haddad correction for investigation of fretting fatigue in railway axles. Stress path along the axle-wheel contact, determined by the FE analysis, was implemented into different multiaxial fatigue criteria in order to predict critical sites of nucleation. The equivalent fatigue limit expressed by the applied criterion is compared with the crack size dependent fatigue limit des...
Uncertainty assessment in reserve estimation of a naturally fractured reservoir
Eriçok, Özlen; Gümrah, Fevzi; Department of Petroleum and Natural Gas Engineering (2004)
Reservoir performance prediction and reserve estimation depend on various petrophysical parameters which have uncertainties due to available technology. For a proper and economical field development, these parameters must be determined by taking into consideration their uncertainty level and probable data ranges. For implementing uncertainty assessment on estimation of original oil in place (OOIP) of a field, a naturally fractured carbonate field, Field-A, is chosen to work with. Since field information is ...
Citation Formats
A. Ergin, “Reliability-Based Risk Assessment of Rubble Mound Breakwaters Under Tsunami Attack,” JOURNAL OF COASTAL RESEARCH, pp. 266–272, 2002, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/55442.