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Title

Ambient vibration as a basis for determining the structural behaviour of watchtowers against horizontal loads in Southeast Spain

AuthorsRuiz-Jaramillo, Jonathan; Montiel-Vega, Laura; García-Pulido, Luis José CSIC ORCID; Muñoz-González, Carmen; Blanca-Hoyos, Álvaro
KeywordsKingdom of Granada
Watchtowers
Non-destructive testing
Ambient vibration test
Mechanical parameters
Young’s modulus
Issue Date2020
PublisherMultidisciplinary Digital Publishing Institute
CitationApplied Sciences (Switzerland) 10 (17): 6114 (2020)
Abstract[EN] The Kingdom of Granada occupied the southeast of the Iberian Peninsula, what today would be the current Spanish provinces of Granada, Malaga and Almeria. Having succeeded the Nasrid kingdom of Granada (1238-1492), it remained a geographical and administrative unit until 1834, defended from the advancement of Castilian troops by means of a large network of watchtowers located principally along its inland border. Following the Castilian conquest of Granada, the extensive coastline was also strengthened with a network of towers and fortifications that were progressively adapted to house artillery. A technical survey focusing on the characteristics of their geometrics and construction, as well as their performance in a series of non-destructive tests, such as ambient vibration testing, was undertaken to study the towers' mechanical strength against both gravitational and seismic loads. The results propose a numerical estimate that defines the fundamental frequency of this type of structure, which in turn can be used to approximate the mechanical properties of the masonry. Such a precise definition based on objective data enables accurate and rigorous numerical analysis of this defensive architecture, thus reducing uncertainties. Furthermore, slenderness is found to be a relevant parameter for adjusting fundamental frequency and for analysing the towers' historical evolution, enabling their initial height and number of levels to be estimated.
Publisher version (URL)http://dx.doi.org/10.3390/app10176114
URIhttp://hdl.handle.net/10261/228048
DOI10.3390/app10176114
Identifiersdoi: 10.3390/app10176114
issn: 2076-3417
Appears in Collections:(EEA) Artículos




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