Field Investigation and Numerical Modeling for the Seismic Assessment of the Castle of Lanjarón, Spain
Source abstract
Abstract
The Castle of Lanjarón is a 16th century stronghold located in Andalucía, Spain. After losing its military function, the castle was abandoned, leading to significant decay. Designated a national heritage site in 1985, recent efforts have sought to preserve its historical and cultural value. This study outlines an inspection and diagnosis campaign carried out on the castle. Non-destructive tests (NDTs) were employed to characterize the properties of the masonry, using both mechanical and wave-based methods. Dynamic identification was performed to determine dynamic and modal properties of the structure, which were used to develop and calibrate a three-dimensional (3D) finite element model (FEM) of the west wall, based on homogenized masonry material. Limit analysis and non-linear static (pushover) analysis under various boundary conditions were conducted to determine the maximum relative load factor in the out-of-plane direction. The results were compared to the expected peak ground acceleration (PGA) of the area, showing that the maximum load capacity of the wall exceeds local seismic demands with a safety factor of 1.39. The study highlights the efficacy of pairing a homogenized macro-modeling approach with wave-based and dynamic identification methods, particularly for resource efficiency. Finally, recommendations for future conservation efforts have been provided.
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Research context
OpenAlex topics: Masonry and Concrete Structural Analysis · Medieval Architecture and Archaeology · Civil and Structural Engineering Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Civil Engineering, ISISE, ARISE, University of Minho, Campus de Azurém s/n, 4800-085 Guimaraes, Portugal
Department of Building Structures and Geotechnical Engineering, Universidad de Sevilla, Avda. Reina Mercedes 2, 41012 Seville, Spain
Funding
FCT/MCTES through national funds (PIDDAC) under the R&D Unit Institute for Sustainability and Innovation in Structural Engineering (ISISE) · Associate Laboratory Advanced Production and Intelligent Systems ARISE
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