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Lehigh University

Bridges

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Full-Text Articles in Engineering

Multi-Scale Methodologies For Probabilistic Resilience Assessment And Enhancement Of Bridges And Transportation Systems, Aman Karamlou Jan 2017

Multi-Scale Methodologies For Probabilistic Resilience Assessment And Enhancement Of Bridges And Transportation Systems, Aman Karamlou

Theses and Dissertations

When an extreme event occurs, such as an earthquake or a tsunami, the amount of socioeconomic losses due to reduced functionality of infrastructure systems over time is comparable to or even higher than the immediate loss due to the extreme event itself. Therefore, one of the highest priorities of owners, disaster management officials, and decision makers in general is to have a prediction of the disaster performance of lifelines and infrastructures a priory considering different scenarios, and be able to restore the functionality in an efficient manner to the normal condition, or at least to an acceptable level during the ...


Life-Cycle Management Of Civil And Marine Structures Under Fatigue And Corrosion Effects, Mohamed Soliman Jan 2015

Life-Cycle Management Of Civil And Marine Structures Under Fatigue And Corrosion Effects, Mohamed Soliman

Theses and Dissertations

Infrastructure systems are under continuous deteriorating effects due to various environmental and mechanical stressors. These effects can be generated by sudden threats such as earthquakes, tornadoes, blast, and fire, or gradual deterioration due to fatigue and corrosion. Moreover, as indicated in the 2013 American Society of Civil Engineers (ASCE) Report Card of America's Infrastructure, the United States' infrastructure systems are highly deteriorating with a required estimated investment of 3.6 trillion USD to improve their condition within the next seven years. Given the limited financial resources, rational methodologies are required to support the optimum budget allocation while maintaining maximum ...


Risk-Based Approach For Life-Cycle Assessment And Management Of Bridges And Ship Structures, Alberto Deco Jan 2013

Risk-Based Approach For Life-Cycle Assessment And Management Of Bridges And Ship Structures, Alberto Deco

Theses and Dissertations

Existing civil and marine structures and infrastructures have to maintain their serviceability and safety under the effects induced by "normal events" and to withstand the effects of "extreme events". Although the quantification of the performance of a structural system is usually conducted considering only structural aspects, in this study consequences arising from the occurrence of potential disruption of service due to failure/malfunction of structural components are also considered, leading to risk assessment.Uncertainties are unavoidable in planning, design, and maintenance of structural systems. Advanced probabilistic methods, such as Monte Carlo simulations based on Latin Hypercube sampling, finite element and ...


Integrated Life-Cycle Framework For Optimal Inspection, Monitoring And Maintenance Under Uncertainty: Applications To Highway Bridges And Naval Ship Structures, Sunyong Kim Jan 2011

Integrated Life-Cycle Framework For Optimal Inspection, Monitoring And Maintenance Under Uncertainty: Applications To Highway Bridges And Naval Ship Structures, Sunyong Kim

Theses and Dissertations

No abstract provided.