Seismic Retrofit of an Industrial Structure with PBO-FRCM

Abstract:

“Music City Mall” is a building with an area of 11,693 square meters providing space for music production as well as a meeting place with dance room, bar, fitness centre and a 1500 seats theatre. The building is the first example in Marghera, Italy, of refurbishment of an abandoned factory obtained by wrapping the existing concrete skeleton with a skin of thin glass and covering it with a bright canopy resembling a pumping core of music and colours. The existing structure is made of large concrete arches that do not have necessary resistance against seismic actions. The seismic retrofit consisted of strengthening and increasing the ductility of concrete sections with PBO-FRCM (Fabric Reinforced Cementitious Matrix). FRCM differs from FRP reinforcement systems in that the epoxy resin is replaced with a special stabilized cement matrix. Experimental evidence has shown that PBO-FRCM system has the same mechanical performance of traditional unidirectional carbon FRP. Furthermore, experimental data and those obtained from their elaboration show that FRCM reinforcement has some advantages with respect to the traditional FRP. In particular, FRCM is compatible with the substrate to be reinforced (surface porosity of substrate where system is applied remains unvaried), and durability, especially with respect to temperature and relative humidity, is guaranteed.

• Periodical: Key Engineering Materials (Volume 624)
• Pages: 663-673
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.624.663
• Online since: September 2014
• Authors: Alessio Rossato, Giovanni Mantegazza*
• Keywords: Durability FRCM, Lap Tension, PBO-FRCM, Seismic Retrofitting

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