Reliability-Based Design Of Piping: Internal Pressure, Gravity, Earthquake, and Thermal Expansion

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dc.contributor.advisorAyyub, Bilal M.en_US
dc.contributor.authorAvrithi, Kleioen_US
dc.contributor.departmentCivil Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2007-09-28T15:02:38Z
dc.date.available2007-09-28T15:02:38Z
dc.date.issued2007-08-09en_US
dc.description.abstractAlthough reliability theory has offered the means for reasonably accounting for the design uncertainties of structural components, limited effort has been made to estimate and control the probability of failure for mechanical components, such as piping. The ASME B&PV Code, Section III, used today for the design of safety piping in nuclear plants is based on the traditional Allowable Stress Design (ASD) method. This dissertation can be considered as a primary step towards the reliability-based design of nuclear safety piping. Design equations are developed according to the Load and Resistance Factor Design (LRFD) method. The loads addressed are the sustained weight, internal pressure, and dynamic loading (e.g., earthquake). The dissertation provides load combinations, and a database of statistical information on basic variables (strength of steel, geometry, and loads). Uncertainties associated with selected ultimate strength prediction models -burst or yielding due to internal pressure and the ultimate bending moment capacity- are quantified for piping. The procedure is based on evaluation of experimental results cited in literature. Partial load and resistance factors are computed for the load combinations and for selected values of the target reliability index, β. Moreover, design examples demonstrate the procedure of the computations. A probabilistic-based method especially for Class 2 and 3 piping is proposed by considering only cycling moment loading (e.g., thermal expansion). Conclusions of the study and provided suggestions can be used for future research.en_US
dc.format.extent7632235 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1903/7380
dc.language.isoen_US
dc.subject.pqcontrolledEngineering, Civilen_US
dc.subject.pqcontrolledEngineering, Mechanicalen_US
dc.subject.pqcontrolledEngineering, Nuclearen_US
dc.subject.pquncontrollednuclearen_US
dc.subject.pquncontrolledpipingen_US
dc.subject.pquncontrolledearthquakeen_US
dc.subject.pquncontrolledpressureen_US
dc.subject.pquncontrolledreliabilityen_US
dc.subject.pquncontrolledfatigueen_US
dc.titleReliability-Based Design Of Piping: Internal Pressure, Gravity, Earthquake, and Thermal Expansionen_US
dc.typeDissertationen_US

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