Techno Press


Earthquakes and Structures   Volume 16, Number 1, January 2019, pages 29-39
DOI: http://dx.doi.org/10.12989/eas.2019.16.1.029
 
A rapid screening method for selection and modification of ground motions for time history analysis
Farhad Behnamfar and Mehdi Talebi Velni

 
Abstract     [Full Text]
    A three-step screening process is presented in this article for selection of consistent earthquake records in which number of suitable ground motions is quickly screened and reduced to a handful number. Records that remain at the end of this screening process considerably reduce the dispersion of structural responses. Then, an effective method is presented for spectral matching and modification of the selected records. Dispersion of structural responses is explored using different statistical measures for each scaling procedure. It is shown that the Uniform Design Method, presented in this study for scaling of earthquake records, results in most cases in the least dispersion measure.
 
Key Words
    ground motion selection; screening process; modification; nonlinear time history analysis; scatter of response
 
Address
Farhad Behnamfar: Department of Civil Engineering, Isfahan University of Technology, Isfahan 8415683111, Iran
Mehdi Talebi Velni: Senior Structural Engineer, Chaloos, Iran
 

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