As-built 3D heritage city modelling to support numerical structural analysis: application to the assessment of an archaeological remain

Antón, D. ORCID: 0000-0002-4267-2433, Pineda, P., Medjdoub, B. ORCID: 0000-0002-3402-4479 and Iranzo, A., 2019. As-built 3D heritage city modelling to support numerical structural analysis: application to the assessment of an archaeological remain. Remote Sensing, 11 (11): 1276. ISSN 2072-4292

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Abstract

Terrestrial laser scanning is a widely used technology to digitise archaeological, architectural and cultural heritage. This allows for modelling the assets’ real condition in comparison with traditional data acquisition methods. This paper, based on the case study of the basilica in the Baelo Claudia archaeological ensemble (Tarifa, Spain), justifies the need of accurate heritage modelling against excessively simplified approaches in order to support structural safety analysis. To do this, after validating the 3D meshing process from point cloud data, the semi-automatic digital reconstitution of the basilica columns is performed. Next, a geometric analysis is conducted to calculate the structural alterations of the columns. In order to determine the structural performance, focusing both on the accuracy and suitability of the geometric models, static and modal analyses are carried out by means of the finite element method (FEM) on three different models for the most unfavourable column in terms of structural damage: (1) as-built (2) simplified and (3) ideal model without deformations. Finally, the outcomes show that the as-built modelling enhances the conservation status analysis of the 3D heritage city (in terms of realistic compliance factor values), although further automation still needs to be implemented in the modelling process.

Item Type: Journal article
Publication Title: Remote Sensing
Creators: Antón, D., Pineda, P., Medjdoub, B. and Iranzo, A.
Publisher: MDPI
Date: 29 May 2019
Volume: 11
Number: 11
ISSN: 2072-4292
Identifiers:
NumberType
10.3390/rs11111276DOI
1207523Other
Rights: © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Divisions: Schools > School of Architecture, Design and the Built Environment
Depositing User: Jonathan Gallacher
Date Added: 28 Oct 2019 09:18
Last Modified: 05 Nov 2019 13:41
URI: http://irep.ntu.ac.uk/id/eprint/38048

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