A Proposed ground motion and scaling procedure for structural systems

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2012

Author

Ay, Bekir Özer

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This study presents a ground-motion selection and scaling procedure that preserves the inherent uncertainty in the modified recordings. The proposed procedure provides a set of scaled ground-motion records to be used in the response estimation of structural systems for a pre-defined earthquake hazard level. Given a relatively larger ground-motion dataset, the methodology constrains the selection and scaling of the accelerograms to the differences between individual records and corresponding estimations from a representative ground-motion predictive model. The procedure precisely calculates the distribution parameters of linear structural systems whereas it provides estimations of these parameters for nonlinear structural response. Thus this method is not only useful for ground-motion selection and scaling but also for probability based performance assessment studies. The proposed procedure is also capable of matching with a pre-defined target elastic response spectrum and corresponding variance over a period range. Case studies that compare the performance of the proposed procedure with some other record selection and scaling methods suggest its usefulness for the accurate verification of structural systems and rapid loss estimation studies.

Subject Keywords

Structural analysis (Engineering)., Structural engineering., Nonlinear theories.

URI

http://etd.lib.metu.edu.tr/upload/12615359/index.pdf
https://hdl.handle.net/11511/22249

Collections

Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

B. Ö. Ay, “A Proposed ground motion and scaling procedure for structural systems,” Ph.D. - Doctoral Program, Middle East Technical University, 2012.