Influence of ground motion scaling methods on seismic response of highway bridges

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2022-8-29

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Gözütok Gündüz, Merve

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Seismic behavior of bridges is a vital issue for all earthquake prone countries. Accurate seismic analysis of bridges is important because bridges are one of the most important transportation networks in Turkiye which is an earthquake prone country located on three main fault lines as Northern Anatolia Fault, East Anatolia Fault and West Anatolia Fault. In engineering practice in Turkiye there are three main specifications which are AASHTO LRFD Design Specifications for Bridge Design, Eurocodes and Turkish Earthquake Specification for Bridges. Those have different seismic design criteria having different design response spectrum curves and time history analysis criteria. Time history criteria include selection of ground motion records, number of ground motions to be employed, scaling criteria etc. Also, there are different types of scaling methods and there is no strict rule of which one to choose. In this thesis three scaling methods are compared employing the three bridge design specification criteria for three different highway bridges having different fundamental periods.

Subject Keywords

Time history analysis, ground motion selection, seismic analysis of bridges, scaling methods

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https://hdl.handle.net/11511/99708

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

M. Gözütok Gündüz, “Influence of ground motion scaling methods on seismic response of highway bridges,” M.S. - Master of Science, Middle East Technical University, 2022.