Assessment of expected damage on buildings subjected to Lorca earthquake through an energy-based seismic index method and nonlinear dynamic response analyses

Benavent Climent, Amadeo; Escobedo Ruiz, Alberto; Donaire Ávila, Jesús; Oliver Saiz, E. y Ramírez Márquez, A.L. (2014). Assessment of expected damage on buildings subjected to Lorca earthquake through an energy-based seismic index method and nonlinear dynamic response analyses. "Bulletin of Earthquake Engineering", v. 12 (n. 5); pp. 2049-2073. ISSN 1570-761X. https://doi.org/10.1007/s10518-013-9513-9.

Descripción

Título: Assessment of expected damage on buildings subjected to Lorca earthquake through an energy-based seismic index method and nonlinear dynamic response analyses
Autor/es:
  • Benavent Climent, Amadeo
  • Escobedo Ruiz, Alberto
  • Donaire Ávila, Jesús
  • Oliver Saiz, E.
  • Ramírez Márquez, A.L.
Tipo de Documento: Artículo
Título de Revista/Publicación: Bulletin of Earthquake Engineering
Fecha: Octubre 2014
Volumen: 12
Materias:
Palabras Clave Informales: Lorca earthquake; Damage concentration; Seismic index; Energy methods; Infill panels
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Ingeniería Mecánica
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

The city of Lorca (Spain) was hit on May 11th, 2011, by two consecutive earth-quakes of magnitudes 4.6 and 5.2 Mw, causing casualties and important damage in buildings. Many of the damaged structures were reinforced concrete frames with wide beams. This study quantifies the expected level of damage on this structural type in the case of the Lorca earth-quake by means of a seismic index Iv that compares the energy input by the earthquake with the energy absorption/dissipation capacity of the structure. The prototype frames investigated represent structures designed in two time periods (1994–2002 and 2003–2008), in which the applicable codes were different. The influence of the masonry infill walls and the proneness of the frames to concentrate damage in a given story were further investigated through nonlinear dynamic response analyses. It is found that (1) the seismic index method predicts levels of damage that range from moderate/severe to complete collapse; this prediction is consistent with the observed damage; (2) the presence of masonry infill walls makes the structure very prone to damage concentration and reduces the overall seismic capacity of the building; and (3) a proper hierarchy of strength between beams and columns that guarantees the formation of a strong column-weak beam mechanism (as prescribed by seismic codes), as well as the adoption of counter-measures to avoid the negative interaction between non-structural infill walls and the main frame, would have reduced the level of damage from Iv=1 (collapse) to about Iv=0.5 (moderate/severe damage)

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
Gobierno de EspañaBIA2011-26816Sin especificarUniversidad de GranadaControl y mitigación del daño en estructuras nuevas con forjados reticulares mediante disipadores de energía

Más información

ID de Registro: 35896
Identificador DC: http://oa.upm.es/35896/
Identificador OAI: oai:oa.upm.es:35896
Identificador DOI: 10.1007/s10518-013-9513-9
URL Oficial: http://link.springer.com/article/10.1007%2Fs10518-013-9513-9
Depositado por: Memoria Investigacion
Depositado el: 03 Mar 2016 09:11
Ultima Modificación: 07 Mar 2016 09:45
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