Memorias de investigación
Artículos en revistas:
Seismic performance and damage evaluation of a reinforced concrete frame with hysteretic dampers through shake-table tests
Año:2014
Áreas de investigación
  • Ingenierías
Datos
Descripción
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.
Internacional
Si
JCR del ISI
Si
Título de la revista
Earthquake Engineering & Structural Dynamics
ISSN
0098-8847
Factor de impacto JCR
1,951
Información de impacto
Volumen
43
DOI
Número de revista
15
Desde la página
2399
Hasta la página
2417
Mes
SIN MES
Ranking
Cuartil Q1
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Amadeo Benavent Climent UPM
  • Autor: Leandro Morillas Universidad de Granada
  • Autor: David Escolano Universidad de Granada
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Ingeniería Sísmica: Dinámica de Suelos y Estructuras