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    Seismic vulnerability assessment of Andean constructions: Structural typification of historical churches using digital technologies
    (Taylor & Francis, 2022-08-23)
    This paper describes the implementation of a comprehensive strategy for the structural typification of historical buildings located in earthquake-prone regions using digital technologies such as HBIM and Augmented Reality. The paper starts by presenting a detailed analysis of a selected sample of case studies in Peru in which key structural and architectural features were identified, aiming at proposing a preliminary typological classification. This typification was then optimized by analyzing its application in a larger data set consisting of 311 churches located in the Central Andes region. This allowed formalizing 12 structural typologies, which demonstrated to have the potential to provide an accurate description of the geometrical, material, and structural characteristics of Andean churches. The paper underlines the importance of combining digital technologies and comprehensive engineering analyses for creating tools that will facilitate further structural evaluations and seismic vulnerability assessments at a territorial scale. For the study, these tools improved information management processes, analyses, and post-processing tasks, and facilitated communication and decision-making among stakeholders.
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    Non-Destructive Testing and Historic Building Information Modelling for the Structural Diagnosis of the Church of the Society of Jesus in Cusco, Peru
    (Inderscience Publishers, 2023-12-03)
    This paper aims at presenting the results of a set of non-destructive tests (NDT) applied to an emblematic stone masonry church and the generation of a 3D parametric model to store and visualise structural diagnosis information following the historic building information modelling (HBIM) framework. Reverse engineering techniques were applied to obtain a precise point cloud of the church. NDT results exposed that the church currently presents several structural anomalies such as cracks, efflorescence, and moisture, among others. In addition, the mechanical characterisation showed that the masonry walls and pillars have an elasticity modulus within the expected range. Furthermore, with the application of operational modal analysis (OMA), it was possible to identify three modes of vibration of the structure. The representation of all the non-geometric information inside the HBIM model plus the generation of a custom plugin allowed the visualisation and adequately managing of the structural diagnosis information of the project.