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

Benavent Climent, Amadeo and Morillas, L. and 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.

Description

Title: Inelastic torsional seismic response of nominally symmetric reinforced concrete frame structures: shaking table tests
Author/s:
  • Benavent Climent, Amadeo
  • Morillas, L.
  • Escolano Margarit, David
Item Type: Article
Título de Revista/Publicación: Engineering Structures
Date: December 2014
ISSN: 0141-0296
Volume: 80
Subjects:
Freetext Keywords: Reinforced concrete; Frames; Torsion; Accidental eccentricity; Shaking table tests
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Mecánica
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (8MB) | Preview

Abstract

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.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainBIA2011-26816UnspecifiedUniversidad de GranadaControl y mitigación del daño en estructuras nuevas con forjados reticulares mediante disipadores de energía

More information

Item ID: 35900
DC Identifier: http://oa.upm.es/35900/
OAI Identifier: oai:oa.upm.es:35900
DOI: 10.1016/j.engstruct.2014.08.047
Official URL: http://www.sciencedirect.com/science/article/pii/S0141029614005185
Deposited by: Memoria Investigacion
Deposited on: 04 Mar 2016 08:06
Last Modified: 07 Mar 2016 08:28
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM