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Analysis and management of structural deformations through parametric models and HBIM workflow in architectural heritage
Journal of Building Engineering ( IF 6.7 ) Pub Date : 2021-09-17 , DOI: 10.1016/j.jobe.2021.103274
Juan Moyano 1 , Ignacio Gil-Arizón 1 , Juan E. Nieto-Julián 1 , David Marín-García 1
Affiliation  

Maintaining the structure and ornaments of historical buildings is essential to preserve cultural heritage in any society. Thus, dating the state and the evolution of the elements requires a special treatment, including the application of both advanced numerical analysis and non-invasive data acquisition techniques. In the latter, making digital copies of geometries through 3D reconstruction models is of great interest to compare and analyse structural evolutionary data accurately. For this purpose, appropriate software with containers of information correlated to the parametric elements in a BIM environment should be used. However, it is imperative to advance from static to dynamic models to collect the structural transformations caused by both the pass of time and other factors. The methodology followed in this paper is based on the experimentation by creating digital twins. The portico of a courtyard in a historical building from the 18th century was used as test bed. Based on the bibliographical recommendations, the terrestrial laser scanner is applied as a technique to acquire accurate data. The point cloud is used as a referential auxiliary to survey the model in the BIM platform with the Revit software. To assess the quality of the model built and to analyse the structural deviations between the parametric model and the actual geometry, the Dynamo script is used. To validate the experimentation, structural deviations are measured using both the parametric model and the point cloud with CloudCompare, a software for data treatment. The results were very positive because the deviation between the data obtained by Dynamo© and CloudCompare in the most unfavourable construction unit was between 0.5 and 1.17 cm, so these techniques are highly appropriate to review visual records and to analyse structural deviations. This new approach presents a new gap in the 3D reconstruction to date and control architectural structures, particularly in historical buildings.



中文翻译:

通过建筑遗产中的参数化模型和 HBIM 工作流程分析和管理结构变形

维护历史建筑的结构和装饰对于任何社会的文化遗产保护都是必不可少的。因此,对元素的状态和演化进行年代测定需要特殊处理,包括应用先进的数值分析和非侵入性数据采集技术。在后者中,通过 3D 重建模型制作几何的数字副本对于准确比较和分析结构演化数据非常重要。为此,应使用适当的软件,其中包含与 BIM 环境中的参数元素相关的信息容器。然而,必须从静态模型向动态模型前进,以收集由时间和其他因素引起的结构变化。本文采用的方法基于创建数字孪生的实验。18世纪历史建筑中庭院的门廊被用作试验台。根据书目推荐,地面激光扫描仪被用作获取准确数据的技术。点云作为参考辅助,在 BIM 平台中使用 Revit 软件对模型进行测量。为了评估所构建模型的质量并分析参数模型与实际几何之间的结构偏差,使用了 Dynamo 脚本。为了验证实验,使用参数模型和点云以及 CloudCompare(一种数据处理软件)来测量结构偏差。结果非常好,因为 Dynamo© 和 CloudCompare 在最不利的施工单元中获得的数据之间的偏差在 0.5 到 1.17 厘米之间,因此这些技术非常适合查看视觉记录和分析结构偏差。这种新方法在迄今为止的 3D 重建和控制建筑结构中呈现出新的差距,尤其是在历史建筑中。

更新日期:2021-09-17
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