PSI - Issue 64

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Yago Cruz et al. / Procedia Structural Integrity 64 (2024) 335–342 Yago Cruz / Structural Integrity Procedia 00 (2019) 000 – 000

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2. Methodology The objective of this work is to propose a methodology for the application of HBIM tools to historic wood and stone structures, as well as a combination of non-destructive techniques for data collection such as TLS, thermal camera and GPR. A way to collect data to create the 3D geometry is proposed, to then perform a meshing and study the static and dynamic loads acting on the model. The applied methodology is summarized in the following figure.

Fig. 1. Summary of the methodology.

2.1.

Data collection

First of all, the geometry of the building must be studied and the appropriate measurements must be taken in order to create the 3D architectural model in BIM modeling software. Various tools and technologies, such as Terrestrial Laser Scanning (TLS) and visual inspection are used to study the geometry and external characterization of the building. In addition, Ground Penerating Radar (GPR) and thermal camera are used to locate structural elements that are hidden to the naked eye and to know the internal characterization of the structure with the use of Non Destructive Techniques (NDT). Architectural model and data linking The point clouds of the building are processed to obtain the geometric dimensions required for the model. With the results of the GPR and thermal camera survey, the hidden structural elements are spatially located. The architectural model is created in BIM software, which focuses on the digital representation of the building's architecture, including walls, doors, ceilings and any other architectural elements. It also collects data on the properties of the building elements. Once the building design is completed, all data related to the building (year of construction, images, renovations, etc.), data acquired in the experimental campaign (TLS, GPR, thermal camera) are linked to the geometric model. The objective is to store and classify everything relevant to the study and monitoring of the structure. Structural model From the architectural model, all structural elements of the building are identified and defined, such as columns, beams, slabs, load-bearing walls, among others. All these elements are modeled in a new phase of the BIM modeling software with their corresponding geometric properties and materials. The structural model is a more simplified model 2.2. 2.3.