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Time-variant Reliability Analysis of Offshorre Structure Subject to Multiple Hazards
, M.Sc. Thesis Sharif University of Technology ; Golafshani, Ali Akbar (Supervisor) ; Mahsuli, Mojtaba (Supervisor)
Abstract
The main purpose in this study is the determination of offshore structures reliability index over time by considering the simultaneous effects of natural hazards. Importance of this study stems from the effect of events associated with time which induces high amount of uncertainties on offshore structures performance during their life time. Extreme wave, marine current, earthquake, fatigue, corrosion and marine growth hazards are considered in this paper. The intensity and occurrence time of all hazards are time dependent parameter. In addition some of these hazards have the possibility to coincidence and the interaction effect. Whereas, the previous studies in this field, the effect of each...
Probabilistic Framework for Risk Analysis of Buildings Under Flood and Earthquake Hazards
, M.Sc. Thesis Sharif University of Technology ; Mahsouli, Mojtaba (Supervisor) ; Safaei, Ammar (Supervisor)
Abstract
This research presents a probabilistic framework for risk analysis under the dual hazards of flood and earthquake using reliability methods. In this research the term “risk” refers to the exceedance probability of the maximum loss resulting from the flood and earthquake hazards over a given time period. This methodology is implemented for the multi-hazard risk analysis of the buildings of a virtual city. The Monte Carlo sampling method is used to propagate uncertainties and compute the probability distribution of the maximum loss under each hazard. Subsequently, the load combination theory is applied to integrate the loss exceedance probabilities under the flood and earthquake hazards....