Frequency Domain Analysis of Composite Long-Span Cable-Stayed Bridges by Finite Strip Method

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dc.contributor.authorLi, Haoran
dc.date.accessioned2017-05-29T15:25:41Z
dc.date.available2017-05-29T15:25:41Z
dc.date.issued2017
dc.identifier.urihttp://hdl.handle.net/10393/36130
dc.identifier.urihttp://dx.doi.org/10.20381/ruor-20410
dc.description.abstractThe finite strip method (FSM) is a very efficient numerical method employed for performing the structural analysis of slender structures, such as cable-stayed bridges; the strip discretization of the model allows for the usage of a lower number of degrees of freedom, in comparison with the finite element method (FEM), while, as it will be discussed in the current research, the results obtained from both methods are in relatively good agreement. Moreover, to address the latest developments in the area of smart construction materials used for long-span bridges, the fiber reinforced polymer (FRP) composites were implemented for the bridge deck modeling, as part of a hybrid composite FRP cable-stayed bridge, and an extend laminate integrated finite strip method (LFSM) was applied for estimating the static structural performance of the hybrid composite FRP long-span cable-stayed bridge under several concentrated and uniformly distributed loadings. The free vibrations analysis was conducted for the Kap Shui Mun Cable-stayed Bridge model, and the natural frequencies were compared with the ones obtained from an FE model of the same bridge. One of the advantages of using the integrated finite strip method is that number of vibration modes, which can be included in the dynamic analysis when the effect of a sweeping sinus and a seismic loading are investigated when a conventional FE analysis would fail to converge. The outcomes of this research will set the stage for the hybrid long-span cable-stayed bridges modeling by the laminate integrated finite strip method (LFSM) which is more efficient and straightforward than the finite element analysis, for performing the static, free vibration, time domain, and frequency domain analyses.
dc.language.isoen
dc.publisherUniversité d'Ottawa / University of Ottawa
dc.subjectFrequency Domain Analysis
dc.subjectFinite Strip Method
dc.subjectCable-Stayed Bridge
dc.subjectComposite Materials
dc.subjectLaminated FRP Deck
dc.subjectWelch's Method
dc.subjectPseudo Excitation Method
dc.subjectFinite Element Method
dc.subjectFRP Slab-Girder Bridge
dc.subjectLong-Span Bridge
dc.titleFrequency Domain Analysis of Composite Long-Span Cable-Stayed Bridges by Finite Strip Method
dc.typeThesis
dc.contributor.supervisorDragomirescu, Elena
thesis.degree.nameMASc
thesis.degree.levelMasters
thesis.degree.disciplineGénie / Engineering
uottawa.departmentGénie civil / Civil Engineering
CollectionThèses, 2011 - // Theses, 2011 -

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