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

Benavent Climent, Amadeo and Morillas, L. and 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.

Description

Title: Seismic performance and damage evaluation of a reinforced concrete frame with hysteretic dampers through shake-table tests
Author/s:
  • Benavent Climent, Amadeo
  • Morillas, L.
  • Escolano Margarit, David
Item Type: Article
Título de Revista/Publicación: Earthquake Engineering & Structural Dynamics
Date: December 2014
ISSN: 0098-8847
Volume: 43
Subjects:
Freetext Keywords: Moment-resisting frame; Hysteretic dampers; Damage; Shake-table test; Seismic performance
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Mecánica
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

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.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainBIA2011-26816UnspecifiedUniversidad de GranadaControl y mitigación del daño en estructuras nuevas con forjados reticulares mediante disipadores de energía
Government of SpainBIA2008-00050RESEDEUnspecifiedRespuesta sísmica de estructuras nuevas de hormigón armado con sistemas innovativos de disipación pasiva de energía (RESEDE)

More information

Item ID: 35899
DC Identifier: http://oa.upm.es/35899/
OAI Identifier: oai:oa.upm.es:35899
DOI: 10.1002/eqe.2459
Official URL: http://onlinelibrary.wiley.com/doi/10.1002/eqe.2459/abstract
Deposited by: Memoria Investigacion
Deposited on: 04 Mar 2016 09:24
Last Modified: 04 Mar 2016 12:10
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