A New Spectral Shape-Based Record Selection Approach Using Np and Genetic Algorithms

A New Spectral Shape-Based Record Selection Approach Using Np and Genetic Algorithms

With the aim to improve code-based real records selection criteria, an approach inspired in a parameter proxy of spectral shape, named Np, is analyzed. The procedure is based on several objectives aimed to minimize the record-to-record variability of the ground motions selected for seismic structura...

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Main Authors: Edén Bojórquez, Alfredo Reyes-Salazar, Sonia E. Ruiz, Juan Bojórquez
Format: Article
Language:English
Published: Hindawi Limited 2013-01-01
Series:Mathematical Problems in Engineering
Online Access:http://dx.doi.org/10.1155/2013/679026
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spelling doaj-306f539900cf4b08aabc9b4d00a707112020-11-24T23:30:06ZengHindawi LimitedMathematical Problems in Engineering1024-123X1563-51472013-01-01201310.1155/2013/679026679026A New Spectral Shape-Based Record Selection Approach Using Np and Genetic AlgorithmsEdén Bojórquez0Alfredo Reyes-Salazar1Sonia E. Ruiz2Juan Bojórquez3Facultad de Ingeniería, Universidad Autónoma de Sinaloa, Ciudad Universitaria, Calzada de las Américas y Boulevard Universitarios S/N, 80040 Culiacán Rosales, SIN, MexicoFacultad de Ingeniería, Universidad Autónoma de Sinaloa, Ciudad Universitaria, Calzada de las Américas y Boulevard Universitarios S/N, 80040 Culiacán Rosales, SIN, MexicoCoordinación de Mecánica Aplicada, Instituto de Ingeniería, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 Coyoacán, DF, MexicoCoordinación de Mecánica Aplicada, Instituto de Ingeniería, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 Coyoacán, DF, MexicoWith the aim to improve code-based real records selection criteria, an approach inspired in a parameter proxy of spectral shape, named Np, is analyzed. The procedure is based on several objectives aimed to minimize the record-to-record variability of the ground motions selected for seismic structural assessment. In order to select the best ground motion set of records to be used as an input for nonlinear dynamic analysis, an optimization approach is applied using genetic algorithms focuse on finding the set of records more compatible with a target spectrum and target Np values. The results of the new Np-based approach suggest that the real accelerograms obtained with this procedure, reduce the scatter of the response spectra as compared with the traditional approach; furthermore, the mean spectrum of the set of records is very similar to the target seismic design spectrum in the range of interest periods, and at the same time, similar Np values are obtained for the selected records and the target spectrum.http://dx.doi.org/10.1155/2013/679026
collection DOAJ
language English
format Article
sources DOAJ
author Edén Bojórquez
Alfredo Reyes-Salazar
Sonia E. Ruiz
Juan Bojórquez
spellingShingle Edén Bojórquez
Alfredo Reyes-Salazar
Sonia E. Ruiz
Juan Bojórquez
A New Spectral Shape-Based Record Selection Approach Using Np and Genetic Algorithms
Mathematical Problems in Engineering
author_facet Edén Bojórquez
Alfredo Reyes-Salazar
Sonia E. Ruiz
Juan Bojórquez
author_sort Edén Bojórquez
title A New Spectral Shape-Based Record Selection Approach Using Np and Genetic Algorithms
title_short A New Spectral Shape-Based Record Selection Approach Using Np and Genetic Algorithms
title_full A New Spectral Shape-Based Record Selection Approach Using Np and Genetic Algorithms
title_fullStr A New Spectral Shape-Based Record Selection Approach Using Np and Genetic Algorithms
title_full_unstemmed A New Spectral Shape-Based Record Selection Approach Using Np and Genetic Algorithms
title_sort new spectral shape-based record selection approach using np and genetic algorithms
publisher Hindawi Limited
series Mathematical Problems in Engineering
issn 1024-123X
1563-5147
publishDate 2013-01-01
description With the aim to improve code-based real records selection criteria, an approach inspired in a parameter proxy of spectral shape, named Np, is analyzed. The procedure is based on several objectives aimed to minimize the record-to-record variability of the ground motions selected for seismic structural assessment. In order to select the best ground motion set of records to be used as an input for nonlinear dynamic analysis, an optimization approach is applied using genetic algorithms focuse on finding the set of records more compatible with a target spectrum and target Np values. The results of the new Np-based approach suggest that the real accelerograms obtained with this procedure, reduce the scatter of the response spectra as compared with the traditional approach; furthermore, the mean spectrum of the set of records is very similar to the target seismic design spectrum in the range of interest periods, and at the same time, similar Np values are obtained for the selected records and the target spectrum.
url http://dx.doi.org/10.1155/2013/679026
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