Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"Seismic risk assessment"”.
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Numerical and experimental methods for seismic risk assessment of civil and industrial structures
Due to high seismic vulnerability and severity of possible failure consequences, petrochemical installations are often considered as “special risk” plants. Although tanks, pipes, elbows and bolted flanges have been a major concern in terms of seismic design, generally, they have not been analysed …
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Monitoring, modeling, and hybrid simulation—an integrated Bayesian-based approach to high-fidelity fragility analysis
… are one of the key technical ingredients in seismic risk assessment. The derivation of fragility functions has been extensively studied in the past; however, large uncertainties still exist, mainly due to limited collaboration between the interdependent components involved in the course of …
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Seismic risk mitigation of "special risk" process plants through enhanced concepts and subplant hybrid simulation
This doctoral thesis focuses on the seismic risk mitigation of â special riskâ industrial facilities, like chemical, petrochemical and process industries. It is known that the impact of natural hazards, such as earthquakes, on this type of structures may cause significant accidents leading to …
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Seismic fragility of buildings damaged by past earthquakes
Fragility analysis plays an important role in seismic risk assessment. Current fragility models of buildings are mostly focusing on the as-built condition of the structure while ignoring the possibility of having multiple earthquakes during the service life of the structure. However, considering …
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Performance-based earthquake engineering with the first-order reliability method
… that the design codes provide to ensure adequate seismic performance of structures. Accounting for uncertainties in the performance assessments forms an important component in this area. In this context, the present study focuses on two broad themes; first, treatment of uncertainties and the …
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Framework for risk-based management and safety of railroad bridge infrastructure using wireless smart sensors (WSS)
… of bridge networks, adopted from the field of seismic risk assessment, for making MRR decisions on a network-wide basis. The proposed framework assesses bridge service state condition based on fragility relations. Fragility curves are developed relating bridge responses under revenue service …
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1D shallow sedimentary subsurface imaging using ambient noise and active seismic data
… of meters of sediment cover. I imaged the seismic 1D shear wave velocity (and possibly the 1D compressional wave velocity). This information is not only required for any seismic risk assessment, geotechnical engineering or microzonation activities, but also for exploration and global …
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An integrated earthquake impact assessment system
… the refined, reliable, integrated and versatile assessment of the impact of earthquakes on civil infrastructure systems by using free-field and structural instrumentation as well as hybrid simulation. The methodology is presented through a seamlessly-integrated, transparent, transferable and …
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Seismic Response and Analytical Fragility Functions for Curved Concrete Box-Girder Bridges
… may lead to significantly different seismic response. Observations from past earthquakes highlighted the seismic vulnerability of these bridges due to this coupled response. The consequence of bridge damage on the performance of transportation system is commonly assessed through …
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Seismic Vulnerability Assessment of As-Built and Retrofitted Multi-Frame Box-Girder Bridges
… In this case, deck unseating is expected if the seismically induced displacements are excessively large. The second case occurs when the two adjacent frames move towards each other. In this case the span pounding can cause localized damage and collisions between two adjacent frames and also …
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Transportation system modeling and applications in earthquake engineering
… is aimed at developing a systematic approach for risk modeling and disaster management of transportation systems in the context of earthquake engineering. First, by employing the performance metrics that are suited for immediate post-disaster response, this dissertation explores efficient …
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Courbes de fragilité pour les ponts au Québec tenant compte du sol de fondation
Les courbes de fragilité sont un outil très utile pour l’évaluation du risque sismique des ponts. Une courbe de fragilité représente la probabilité qu'une structure soit endommagée au-delà d'un état d'endommagement donné pour différents niveaux de tremblement de terre. Étant donné que plus de la …