Seismic performance and damage evaluation of a reinforced concrete frame with hysteretic dampers through shake-table tests

Benavent Climent, Amadeo; Morillas, L. y Escolano Margarit, David (2014). Seismic performance and damage evaluation of a reinforced concrete frame with hysteretic dampers through shake-table tests. "Earthquake Engineering & Structural Dynamics", v. 43 (n. 15); pp. 2399-2417. ISSN 0098-8847. https://doi.org/10.1002/eqe.2459.

Descripción

Título: Seismic performance and damage evaluation of a reinforced concrete frame with hysteretic dampers through shake-table tests
Autor/es:
  • Benavent Climent, Amadeo
  • Morillas, L.
  • Escolano Margarit, David
Tipo de Documento: Artículo
Título de Revista/Publicación: Earthquake Engineering & Structural Dynamics
Fecha: Diciembre 2014
Volumen: 43
Materias:
Palabras Clave Informales: Moment-resisting frame; Hysteretic dampers; Damage; Shake-table test; Seismic performance
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Ingeniería Mecánica
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Passive energy dissipation devices are increasingly implemented in frame structures to improve their performance under seismic loading. Most guidelines for designing this type of system retain the requirements applicable to frames without dampers, and this hinders taking full advantage of the benefits of implementing dampers. Further, assessing the extent of damage suffered by the frame and by the dampers for different levels of seismic hazard is of paramount importance in the framework of performance-based design. This paper presents an experimental investigation whose objectives are to provide empirical data on the response of reinforced concrete (RC) frames equipped with hysteretic dampers (dynamic response and damage) and to evaluate the need for the frame to form a strong column-weak beam mechanism and dissipate large amounts of plastic strain energy. To this end, shake-table tests were conducted on a 2/5-scale RC frame with hysteretic dampers. The frame was designed only for gravitational loads. The dampers provided lateral strength and stiffness, respectively, three and 12 times greater than those of the frame. The test structure was subjected to a sequence of seismic simulations that represented different levels of seismic hazard. The RC frame showed a performance level of "immediate occupancy", with maximum rotation demands below 20% of the ultimate capacity. The dampers dissipated most of the energy input by the earthquake. It is shown that combining hysteretic dampers with flexible reinforced concrete frames leads to structures with improved seismic performance and that requirements of conventional RC frames (without dampers) can be relieved.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
Gobierno de EspañaBIA2011-26816Sin especificarUniversidad de GranadaControl y mitigación del daño en estructuras nuevas con forjados reticulares mediante disipadores de energía
Gobierno de EspañaBIA2008-00050RESEDESin especificarRespuesta sísmica de estructuras nuevas de hormigón armado con sistemas innovativos de disipación pasiva de energía (RESEDE)

Más información

ID de Registro: 35899
Identificador DC: http://oa.upm.es/35899/
Identificador OAI: oai:oa.upm.es:35899
Identificador DOI: 10.1002/eqe.2459
URL Oficial: http://onlinelibrary.wiley.com/doi/10.1002/eqe.2459/abstract
Depositado por: Memoria Investigacion
Depositado el: 04 Mar 2016 09:24
Ultima Modificación: 04 Mar 2016 12:10
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