Nuestros investigadores

Ignacio Arteaga Jordá

Publicaciones científicas más recientes (desde 2010)

Autores: Villarino, JI ; Villarino, A , (Autor de correspondencia); Arteaga, Ignacio; et al.
ISSN 1996-1073  Vol. 12  Nº 5  2019  págs. 870
Autores: Riveiro, B.; Solla, M.; Arteaga, Ignacio; et al.
ISSN 0926-5805  Vol. 31  2013  págs. 140 - 148
Knowledge of the functional and conservation state of a structure is a fundamental aspect in order to achieve its maintenance and preservation. Having adequate techniques for reaching this purpose is one of the most important aspects for professionals working about built-up structures. Geometry usually plays an important role in the diagnosis of these structures, and for masonry arches particularly. The most common software packages focused on the stability analysis of masonry arches use rigid blocks assuming masonry as plastic material into the context of Limit Analysis Theory. This paper presents the first results of a novel methodology for the analysis of arch bridge stability based on the construction of integral 3D models of entire vaults. This geometric reconstruction is achieved thanks to the employment of non-destructive techniques such as photogrammetry and Ground Penetrating Radar. Then, stability of vaults is evaluated through a tool specifically developed using Matlab software.
Autores: Morer, María de la Paz; Arteaga, Ignacio; Ana Ortueta;
ISSN 1355-6207  Vol. 19  Nº 3  2013  págs. 246 - 264
The geometry of bridges is one of the parameters that define their structural strength. The geometry of modern bridges is the result of computer-aided design (CAD) modelling and computer-aided engineering analysis and, in consequence, the collapse loads are well-known. For ancient bridges (i.e. masonry arched bridges), when the CAD geometry is unavailable; it becomes necessary to find a methodology that facilitates the acquisition of such data in order to determine the critical loads. This works aims to develop a low cost photogrammetric methodology for acquiring the geometrical data of masonry arched bridges. This methodology was applied to 20 arches of 11 masonry bridges and the results compared against the classic approach with planimetric method using a Leica TCRM 1205 Total Station. The maximum error in the span could reach 2.32% in the case of the image with greater perspective. Based on the acquired geometry, and in terms of strength, the structural analysis for the different bridges shows that the average error in the load capacity between both methodologies is 4.01%, while the average difference for the load positioning is 5.54%.
Autores: Arteaga, Ignacio; Morer, María de la Paz;
ISSN 0950-0618  Vol. 34  2012  págs. 97 - 106
This paper presents the effect of geometry on the structural capacity of masonry arch bridges with different geometric features. This study was performed using an application (ANPAF) developed in MATLAB and based on the Linear Programming Method developed by Livesley. The geometry is read directly from an 'a.dxf' file, which stores the information obtained from planimetric surveying techniques. The results were compared with real and idealized geometry corresponding to each of the arches. This study aims to estimate the percentage of error that can occur in the structural assessment of masonry bridges by reading from different shapes as well as to estimate geometrical error. (C) 2012 Elsevier Ltd. All rights reserved.
Autores: Riveiro, B.; Morer, María de la Paz; Arias, P.; et al.
ISSN 0950-0618  Vol. 25  Nº 4  2011  págs. 1726 - 1735
Masonry arches are one of the most common and extended structural shapes present in the worldwide architectural heritage. When handling with these structures at least two demands are addressed to the scientific community: (i) development of reliable and affordable methods for documenting historic infrastructures and (ii) improvement of structural analysis for appraising the actual structural condition of the bridge. In relation to the first item, 3D laser scanning is an exponent of the evolution of the non contact techniques for built up structures survey and documentation. In relation to the structural stage, the limit analysis is still the most extended method among engineers and technicians and some of the most common software package for masonry arch bridges work within the assumptions of limit analysis. However computations should be adapted to work on the base of the real geometry instead of on idealized geometry in order to benefit from the advanced 3D surveying techniques and get more reliable results. In this article we describe a methodology based on using TLS to obtaining the real 3D geometry of the whole bridge and the arches. The collapse load value and position, as well as the hinges position and reaction forces are obtained within the assumptions of the limit analysis but on the base of the resulting survey. The methodology is applied in a mediaeval bridge.
Autores: Morer, María de la Paz; Arteaga, Ignacio; Julia Armesto; et al.
ISSN 1296-2074  Vol. 12  Nº 3  2011  págs. 300 - 309
This paper presents a study of the structural safety of a medieval bridge located in the northwest of Spain. This study was carried out using different analytical methods: (1) the Mechanism Method proposed by Heyman, (2) the Virtual Works Method, (3) the Method developed by Livesley using Linear Programming, and (4) Mery's Graphic Method. The last one was used to check the other three methods. To do this we developed software called ANPAF, which contains these four methods. The geometry of the bridge was acquired by data acquisition techniques using a 3D scanner. Given the difficulty of assessing the basis of its actual geometry, a module that allows direct reading from the technical information provided by Terrestrial Laser Scanning (TLS) and orthophotos was developed. This study has allowed us to compare the results from different methods and to see the scope of each with a view towards their utility in collecting data in the field. At the same time, we validated the methods implemented with existing software.