Engineering estimation of topographic effects in site response analysis

Vergara Gallego, Juan Carlos

Engineering estimation of topographic effects in site response analysis

dc.contributor.advisor	Gómez Cataño, Juan David	spa
dc.contributor.author	Vergara Gallego, Juan Carlos
dc.coverage.spatial	Medellín de: Lat: 06 15 00 N degrees minutes Lat: 6.2500 decimal degrees Long: 075 36 00 W degrees minutes Long: -75.6000 decimal degrees	eng
dc.creator.degree	Doctor in Engineering	spa
dc.creator.email	jvergar2@eafit.edu.co	spa
dc.date.accessioned	2022-03-18T17:50:03Z
dc.date.available	2022-03-18T17:50:03Z
dc.date.issued	2021
dc.description.abstract	Despite the irrefutable amount of theoretical and field evidence of the impact of topographic effects on the local response at a site the engineering community still lacks practical methods for its consideration in a standard routinely basis. The incorporation of topographic effects into site response analysis has been a major challenge to engineers as it involves coupling between mechanical and geometric modifications to the incident seismic waves, which at the same time demands for field data that is rarely available to the practicing engineer. On the other hand, it has been observed that the main signature of topographic effects, besides the expected change in frequency con tent, is its spatial variation. These complexities combined to the field data required to build fully coupled mechanical-geometrical models have resulted in complete under consideration of these effects. In this work we follow a rational approach to study the effect of surface topography on the response at local sites after formulating the problem following a diffraction perspective. Since this work is framed in an engineering context our main result is a method to incorporate the effect of surface topography in ground response analysis. Although the method requires numerical simulations we show that if the analyst brings into the problem the dynamic properties of the structure for which the analysis is conducted in the first place very moderate models may be required. These idea leads to the concept of size conditioned response spectra which uses a target structural response spectra to fix the size of the computational model. The resulting numerical domain turns out to be of manageable size thus it can be handled with standard computing resources. Although our proposed approach is limited to surface topography the combination of the theory of diffracted waves and the consideration of the structural response creates new venues to advance in understanding the problem of topographic effects.	spa
dc.format	application/pdf	eng
dc.identifier.ddc	526.98 V94
dc.identifier.uri	http://hdl.handle.net/10784/30942
dc.language.iso	spa	spa
dc.publisher	Universidad EAFIT	spa
dc.publisher.department	Escuela de Ingeniería	spa
dc.publisher.place	Medellín	spa
dc.publisher.program	Doctorado en Ingeniería	spa
dc.rights	Todos los derechos reservados	spa
dc.rights.accessrights	info:eu-repo/semantics/openAccess	spa
dc.rights.local	Acceso abierto	spa
dc.rights.uri	https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject	Efectos topográficos	spa
dc.subject	Espectro condicionado por tamaño	spa
dc.subject	Difracción	spa
dc.subject.keyword	Topographic effects	spa
dc.subject.keyword	Size conditioned response spectra	spa
dc.subject.keyword	Diffraction	spa
dc.subject.lemb	ONDAS SÍSMICAS	spa
dc.subject.lemb	TOPOGRAFÍA	spa
dc.subject.lemb	MECÁNICA DE SUELOS	spa
dc.title	Engineering estimation of topographic effects in site response analysis	spa
dc.type	doctoralThesis	eng
dc.type	info:eu-repo/semantics/doctoralThesis	eng
dc.type.hasVersion	acceptedVersion	eng
dc.type.local	Tesis Doctoral	spa
dc.type.spa	Monografía	spa