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dc.contributor Ph.D. Program in Civil Engineering.
dc.contributor.advisor Soyöz, Serdar.
dc.contributor.author Kırkpınar, Erdinç.
dc.date.accessioned 2024-03-12T14:54:35Z
dc.date.available 2024-03-12T14:54:35Z
dc.date.issued 2022
dc.identifier.other CE 2022 K57 PhD
dc.identifier.uri http://digitalarchive.boun.edu.tr/handle/123456789/21460
dc.description.abstract In the 21st century, necessity for the electricity is growing more and more every day. In order to transfer huge amount of electricity, engineering is nding its way between mountains, rivers and valleys with the help of electricity transmission lines. However, external obstacles are not limited to geographical characteristics of the environment but also natural hazards such as earthquakes as the supply of electricity must be continuous in terms of economic and social outcomes. In order to keep continuous supply, seismic design of electricity transmission lines is proven to be very crucial in the late decades as a lot of catastrophic events were witnessed. In light of this need, an electrical transmission line in Istanbul region is instrumented with accelerometers and a modal identi cation study is conducted. Natural frequencies of the system are obtained by frequency domain decomposition method. These results are compared with modal values obtained from nite element model (FEM) of the system created according to the technical drawings. Furthermore, as transmission lines covers long spans, spatially varying ground motion excitations are simulated and applied in time history analysis to capture the realistic response of the system. In this study, it is shown that spatially varying ground motions and FEM updating based on modal identification results are signi cant in the determination of seismic demand on electrical transmission lines.
dc.format.extent 111:001:PDF:b2795549:038344:0:0:0:0:0:0tFull text electronic versionvn
dc.publisher Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022.
dc.subject.lcsh Electric power transmission -- Earthquake effects.
dc.subject.lcsh Earthquake resistant desing.
dc.title Seismic assessment of transmission towers
dc.format.pages xvi, 76 leaves


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