Inelastic torsional seismic response of nominally symmetric reinforced concrete frame structures: shaking table tests

Benavent Climent, Amadeo; Morillas, L. y Escolano Margarit, David (2014). Inelastic torsional seismic response of nominally symmetric reinforced concrete frame structures: shaking table tests. "Engineering Structures", v. 80 ; pp. 109-117. ISSN 0141-0296. https://doi.org/10.1016/j.engstruct.2014.08.047.

Descripción

Título: Inelastic torsional seismic response of nominally symmetric reinforced concrete frame structures: shaking table tests
Autor/es:
  • Benavent Climent, Amadeo
  • Morillas, L.
  • Escolano Margarit, David
Tipo de Documento: Artículo
Título de Revista/Publicación: Engineering Structures
Fecha: Diciembre 2014
Volumen: 80
Materias:
Palabras Clave Informales: Reinforced concrete; Frames; Torsion; Accidental eccentricity; Shaking table tests
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Ingeniería Mecánica
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

This paper discusses the torsional response of a scaled reinforced concrete frame structure subjected to several uniaxial shaking table tests. The tested structure is nominally symmetric in the direction of shaking and exhibits torsion attributable to non-uniform yielding of structural components and uncertainties in the building process. Asymmetric behavior is analyzed in terms of displacement, strain in reinforcing bars, energy dissipated at plastic hinges, and damage at section and frame levels. The results show that for low levels of seismic hazard, for which the structure is expected to perform basically within the elastic range, the accidental eccentricity is not a concern for the health of the structure, but it significantly increases the lateral displacement demand in the frames (about 30%) and this might cause significant damage to non-structural components. For high levels of seismic hazard the effects of accidental torsion become less important. These results underline the need to consider accidental eccentricity in evaluating the performance of a structure for very frequent or frequent earthquakes, and suggest that consideration of torsion may be neglected for performance levels associated with rare or very rare earthquakes.

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: 35900
Identificador DC: http://oa.upm.es/35900/
Identificador OAI: oai:oa.upm.es:35900
Identificador DOI: 10.1016/j.engstruct.2014.08.047
URL Oficial: http://www.sciencedirect.com/science/article/pii/S0141029614005185
Depositado por: Memoria Investigacion
Depositado el: 04 Mar 2016 08:06
Ultima Modificación: 07 Mar 2016 08:28
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