A Superposition Based Diffraction Technique to Study Site Effects in Earthquake Engineering
A method to study the response of surface topographies submitted to incident SH waves is presented. The method is based on the superposition of diffracted sources described in Jaramillo et al. (2013). Since the technique proceeds in the frequency domain in terms of the superposition of incident, ref...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | International Journal of Geophysics |
| Online Access: | http://dx.doi.org/10.1155/2016/7131867 |
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| _version_ | 1832554731728273408 |
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| author | Juan Gomez Juan Jaramillo Mario Saenz Juan Vergara |
| author_facet | Juan Gomez Juan Jaramillo Mario Saenz Juan Vergara |
| author_sort | Juan Gomez |
| collection | DOAJ |
| description | A method to study the response of surface topographies submitted to incident SH waves is presented. The method is based on the superposition of diffracted sources described in Jaramillo et al. (2013). Since the technique proceeds in the frequency domain in terms of the superposition of incident, reflected, and diffracted waves, it has been termed like a superposition based diffraction approach. The final solution resulting from the superposition approach takes the form of a series of infinite terms, where each term corresponds to diffractions of increasing order and of decreasing amplitude generated by the interactions between the geometric singularities of the scatterer. A detailed, step-by-step algorithm to apply the method is presented with regard to the simple problem of scattering by a V-shaped canyon. In order to show the accuracy of the method we compare our time and frequency domain results with those obtained from a direct Green’s function approach. We show that fast solutions with an error of the order of 6.0% are obtained. |
| format | Article |
| id | doaj-art-c26a5a2e935641ffa21e1efff37da7a1 |
| institution | Kabale University |
| issn | 1687-885X 1687-8868 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Geophysics |
| spelling | doaj-art-c26a5a2e935641ffa21e1efff37da7a12025-02-03T05:50:50ZengWileyInternational Journal of Geophysics1687-885X1687-88682016-01-01201610.1155/2016/71318677131867A Superposition Based Diffraction Technique to Study Site Effects in Earthquake EngineeringJuan Gomez0Juan Jaramillo1Mario Saenz2Juan Vergara3Departamento de Ingeniería Civil, Universidad EAFIT, Medellín, ColombiaDepartamento de Ingeniería Civil, Universidad EAFIT, Medellín, ColombiaDepartamento de Ingeniería Civil, Universidad EAFIT, Medellín, ColombiaDepartamento de Ingeniería Civil, Universidad EAFIT, Medellín, ColombiaA method to study the response of surface topographies submitted to incident SH waves is presented. The method is based on the superposition of diffracted sources described in Jaramillo et al. (2013). Since the technique proceeds in the frequency domain in terms of the superposition of incident, reflected, and diffracted waves, it has been termed like a superposition based diffraction approach. The final solution resulting from the superposition approach takes the form of a series of infinite terms, where each term corresponds to diffractions of increasing order and of decreasing amplitude generated by the interactions between the geometric singularities of the scatterer. A detailed, step-by-step algorithm to apply the method is presented with regard to the simple problem of scattering by a V-shaped canyon. In order to show the accuracy of the method we compare our time and frequency domain results with those obtained from a direct Green’s function approach. We show that fast solutions with an error of the order of 6.0% are obtained.http://dx.doi.org/10.1155/2016/7131867 |
| spellingShingle | Juan Gomez Juan Jaramillo Mario Saenz Juan Vergara A Superposition Based Diffraction Technique to Study Site Effects in Earthquake Engineering International Journal of Geophysics |
| title | A Superposition Based Diffraction Technique to Study Site Effects in Earthquake Engineering |
| title_full | A Superposition Based Diffraction Technique to Study Site Effects in Earthquake Engineering |
| title_fullStr | A Superposition Based Diffraction Technique to Study Site Effects in Earthquake Engineering |
| title_full_unstemmed | A Superposition Based Diffraction Technique to Study Site Effects in Earthquake Engineering |
| title_short | A Superposition Based Diffraction Technique to Study Site Effects in Earthquake Engineering |
| title_sort | superposition based diffraction technique to study site effects in earthquake engineering |
| url | http://dx.doi.org/10.1155/2016/7131867 |
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