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New capacity and energy based damage index
dc.contributor.author | Díaz, Sergio Alberto |
dc.contributor.author | Pujades Beneit, Lluís |
dc.contributor.author | Barbat Barbat, Horia Alejandro |
dc.contributor.author | Vargas Alzate, Yeudy Felipe |
dc.contributor.author | González Drigo, José Ramón |
dc.contributor.author | Alva Bañuelos, Rodrigo Esteban |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Resistència de Materials i Estructures a l'Enginyeria |
dc.contributor.other | Universitat Politècnica de Catalunya. Doctorat en Enginyeria Sísmica i Dinàmica Estructural |
dc.date.accessioned | 2021-06-29T14:34:54Z |
dc.date.available | 2021-06-29T14:34:54Z |
dc.date.issued | 2018 |
dc.identifier.citation | Díaz, S. [et al.]. New capacity and energy based damage index. A: European Conference on Earthquake Engineering. "16th European Conference on Earthquake Engineering: conference proceedings". 2018, p. 1-12. |
dc.identifier.uri | http://hdl.handle.net/2117/348087 |
dc.description.abstract | Non-linear dynamic analysis and the damage index of Park-Ang have been often used to assess expected seismic damage to a structure. Depending on the size of the structure and the duration of the record, the computational effort in dynamic analyses is usually high. In this research, a new damage index is proposed based on nonlinear static analysis. The damage index is a linear combination of two energy functions: 1) the strain energy associated with the stiffness variation and the ductility of the structure, and 2) the dissipated energy associated with hysteretic cycles. These two energy functions are obtained from the capacity curve of the structure and from the energy balance with the spectral acceleration. To show the ability of the index to represent damage, low-rise steel buildings were studied under the seismic actions that are expected in Mexico City. The results obtained with the new method show good agreement with those calculated by means of dynamic analyses using the Park-Ang damage index. On average, the Park-Ang damage index is well-fitted by the combination of 62% of the strain energy and 38% of the energy dissipated by hysteresis. Moreover, the new damage index can link damage to certain characteristics of seismic actions, such as their intensity and duration. Therefore, the new approach results in a practical, powerful tool for estimating seismic damage in buildings, especially as probabilistic approaches require massive computations. |
dc.description.sponsorship | This research was partially funded by the Ministry of Economy and Competitiveness (MINECO) of the Spanish Government and by the European Regional Development Fund (ERDF) of the European Union (EU) through projects referenced as: CGL2011-23621 and CGL2015-65913-P (MINECO/FEDER, UE). |
dc.format.extent | 12 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures |
dc.subject | Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Sismologia |
dc.subject.lcsh | Buildings--Earthquake effects--Mathematical models |
dc.subject.other | Capacity curve |
dc.subject.other | Damage assessment |
dc.subject.other | Strain energy |
dc.subject.other | Energy dissipated by hysteresis |
dc.subject.other | Monte Carlo simulations |
dc.title | New capacity and energy based damage index |
dc.type | Conference report |
dc.subject.lemac | Edificis -- Efecte dels terratrèmols |
dc.contributor.group | Universitat Politècnica de Catalunya. GIES - Geofísica i Enginyeria Sísmica |
dc.relation.publisherversion | http://papers.16ecee.org/files/Paper%2016ECEE%20SAD.pdf |
dc.rights.access | Open Access |
local.identifier.drac | 31803237 |
dc.description.version | Postprint (published version) |
dc.relation.projectid | info:eu-repo/grantAgreement/MICINN//CGL2011-23621/ES/NUEVAS AVANCES DE LA GEOFISICA Y LA INGENIERIA APLICADOS A LA EVALUACION DEL RIESGO SISMICO/ |
dc.relation.projectid | info:eu-repo/grantAgreement/MINECO//CGL2015-65913-P/ES/DESARROLLO Y APLICACION DE HERRAMIENTAS AVANZADAS PARA LA EVALUACION, PREVENCION Y GESTION DEL RIESGO SISMICO/ |
local.citation.author | Díaz, S.; Pujades, L.G.; Barbat, A.; Vargas, Y.; Gonzalez-Drigo, J.R.; Alva, R. |
local.citation.contributor | European Conference on Earthquake Engineering |
local.citation.publicationName | 16th European Conference on Earthquake Engineering: conference proceedings |
local.citation.startingPage | 1 |
local.citation.endingPage | 12 |