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Your search keyword '"Disseny d'estructures"' showing total 2 results
Start Over Descriptor "Disseny d'estructures" Publisher elsevier
2 results on '"Disseny d'estructures"'

1. Assessing the performance of CFRP strengthening on masonry walls using experimental modal analysis

Abstract

Strengthening masonry structures using FRP laminates has been widely studied from a resistance point of view. However, there is a need of a non-destructive technique to validate strengthening interventions. In this paper, experimental modal analysis is proposed as a technique to assess practitioners’ works. Fifteen brick masonry walls were built and strengthened with five different patterns of carbon-FRP laminates. Experimental modal analysis was performed before and after strengthening interventions. Different vibration modes were compared to select the more sensitive one depending on the strengthening configuration. The change in the vibration frequency was analysed and correlated with cross-section stiffness modification. The obtained results showed changes up to 30% on the vibration frequencies due to strengthening installation. On the overall, the proposed experimental methodology is supported by theoretical analytical calculations with an error under 5% in most of the cases., Peer Reviewed, Postprint (author's final draft)

Published
2019

2. Assessing the performance of CFRP strengthening on masonry walls using experimental modal analysis

Author

Lluís Gil, Ernest Bernat-Maso, Universitat Politècnica de Catalunya. Departament de Resistència de Materials i Estructures a l'Enginyeria, and Universitat Politècnica de Catalunya. LITEM - Laboratori per a la Innovació Tecnològica d'Estructures i Materials

Subjects
Computer science, Polymers, Modal analysis, 0211 other engineering and technologies, 020101 civil engineering, Enginyeria civil::Materials i estructures [Àrees temàtiques de la UPC], 02 engineering and technology, Anàlisi modal, 0201 civil engineering, Normal mode, 021105 building & construction, medicine, Point (geometry), Strength of materials, Masonry, Ram de paleta, Resistència de materials, Civil and Structural Engineering, analytical frequency calculation, business.industry, masonry walls, Stiffness, Structural engineering, Fibre-reinforced plastic, Polímers, Vibration, experimental modal analysis, Brick masonry, strengthening assessment, Structural design, Disseny d'estructures, medicine.symptom, business, fibre reinforced polymers
Abstract

Strengthening masonry structures using FRP laminates has been widely studied from a resistance point of view. However, there is a need of a non-destructive technique to validate strengthening interventions. In this paper, experimental modal analysis is proposed as a technique to assess practitioners’ works. Fifteen brick masonry walls were built and strengthened with five different patterns of carbon-FRP laminates. Experimental modal analysis was performed before and after strengthening interventions. Different vibration modes were compared to select the more sensitive one depending on the strengthening configuration. The change in the vibration frequency was analysed and correlated with cross-section stiffness modification. The obtained results showed changes up to 30% on the vibration frequencies due to strengthening installation. On the overall, the proposed experimental methodology is supported by theoretical analytical calculations with an error under 5% in most of the cases.

Published
2019

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