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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out with a black arrow. Finally, the georadar was applied on the wooden floor of the living rooms to locate the hidden joists of this room. Fig. 3d shows one of the data acquisition where two joists were found. The information provided by the GPR is the spacing between two consecutive joists and the depth of the joists. Unlike the thermal camera, the GPR provides direct numerical values.

Fig. 3. (a) Complete point cloud of the structure; (b) Humidity detected with the thermal camera; (c) Beam location by thermal camera; (d) Calculation of the distance between the beams with the help of the GPR.

3.2. Architectural model and data linking Using the CloudCompare point cloud processing software, the point clouds obtained from the previous scans are analyzed, filtered and processed. After processing the point cloud, a complete cloud of the structure is obtained with a density of 95,432,981 points that faithfully represents reality. This is used to obtain the measurements of the structure and subsequently model it in HBIM modeling software. In the case of this work, Autodesk Revit is used as BIM/HBIM model management software. An architectural model of the structure is generated in 3D, the walls and floors of the building are modeled. For this, the data extracted from the point cloud, from the annotations taken during the experimental campaign and from the photographic report are used as reference. Different Revit families are created to recreate in detail the different elements that complement the main structure such as doors, windows, battlements or handrails. To finalize the creation of the HBIM model, all the data collected in the experimental campaign (photographic report, thermal images, scans with the Faro laser, etc.), and the documentation related to the building, are linked to the building components themselves (Fig. 4), or to the project as a whole, by means of links.

Fig. 4. Information associated to one of the arches of the structure.