Comparison of ground motion scaling methods by considering vertical ground motions

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2022-5-20

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Oğuz, Umut

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The increasing popularity of nonlinear time history analysis has created a demand for ground motion data that is consistent with the seismicity of the region. To meet this need as well as the target design criteria, engineers have started to scale ground motion records. Recent studies have shown that the vertical component of a ground motion can significantly change the results of an analysis. This situation has created a debate about how to scale the vertical component of the ground motions. There exists two alternatives that are commonly applied. In the first alternative, a scaling factor determined only by considering horizontal components of ground motion records is applied to both horizontal and vertical components of a ground motion. In the second alternative, different scaling factors are applied to horizontal and vertical components of ground motions. In this study, the methods of ground motion scaling have been compared by conducting nonlinear time history analyses with ground motions scaled by the mentioned methods.For this purpose, nonlinear time history analyses are conducted for selected building typologies.

Subject Keywords

Ground motion scaling, Nonlinear time history analysis, Vertical ground motion

URI

https://hdl.handle.net/11511/98109

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

U. Oğuz, “Comparison of ground motion scaling methods by considering vertical ground motions,” M.S. - Master of Science, Middle East Technical University, 2022.