Low-cost retrofitting solutions for RC frames using masonry infill panels

Ramírez Márquez, A.L.; Benavent Climent, Amadeo; Oliver Saiz, E. y Pujol, Santiago (2012). Low-cost retrofitting solutions for RC frames using masonry infill panels. En: "15 World Conference on Earthqualke Engineering", 24/09/2012 - 28/09/2012, Lisbon, Portugal. pp. 1-10.

Descripción

Título: Low-cost retrofitting solutions for RC frames using masonry infill panels
Autor/es:
  • Ramírez Márquez, A.L.
  • Benavent Climent, Amadeo
  • Oliver Saiz, E.
  • Pujol, Santiago
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 15 World Conference on Earthqualke Engineering
Fechas del Evento: 24/09/2012 - 28/09/2012
Lugar del Evento: Lisbon, Portugal
Título del Libro: 15 World Conference on Earthqualke Engineering
Fecha: 2012
Materias:
Palabras Clave Informales: Masonry infill panels, retrofitting, low-cost retrofitting solution, developing country
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Mecánica Estructural y Construcciones Industriales [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

A large number of reinforced concrete (RC) frame structures built in earthquake-prone areas such as Haiti are vulnerable to strong ground motions. Structures in developing countries need low-cost seismic retrofit solutions to reduce their vulnerability. This paper investigates the feasibility of using masonry infill walls to reduce deformations and damage caused by strong ground motions in brittle and weak RC frames designed only for gravity loads. A numerical experiment was conducted in which several idealized prototypes representing RC frame structures of school buildings damaged during the Port-au-Prince earthquake (Haiti, 2010) were strengthened by adding elements representing masonry infill walls arranged in different configurations. Each configuration was characterized by the ratio Rm of the area of walls in the direction of the ground motion (in plan) installed in each story to the total floor area. The numerical representations of these idealized RC frame structures with different values of Rm were (hypothetically) subjected to three major earthquakes with peak ground accelerations of approximately 0.5g. The results of the non-linear dynamic response analyses were summarized in tentative relationships between Rm and four parameters commonly used to characterize the seismic response of structures: interstory drift, Park and Ang indexes of damage, and total amount of energy dissipated by the main frame. It was found that Rm=4% is a reasonable minimum design value for seismic retrofitting purposes in cases in which available resources are not sufficient to afford conventional retrofit measures.

Más información

ID de Registro: 19611
Identificador DC: http://oa.upm.es/19611/
Identificador OAI: oai:oa.upm.es:19611
Depositado por: Memoria Investigacion
Depositado el: 03 Feb 2014 17:43
Ultima Modificación: 21 Abr 2016 20:27
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